tag:blogger.com,1999:blog-65196654028315001632024-03-14T08:32:35.772+07:00MathslandStuff about Mathematics - this blog was set up for the Mathematicians at my school in Thailand. I migrated the contents when I left, so please excuse any images that didn't make the journey. They are bouncing around somewhere in the blogosphere.
Image is from my travels in Argentina, 2013. The beautiful natural geometric patterns found in Humahuaca 2013 Anonymoushttp://www.blogger.com/profile/04262099382492931312noreply@blogger.comBlogger83125tag:blogger.com,1999:blog-6519665402831500163.post-18633146121792645032016-07-07T14:49:00.002+07:002016-07-07T14:49:50.574+07:00The Anti Primes<div dir="ltr" style="text-align: left;" trbidi="on">
During the winter break I saw a video on Numberphile about Antiprimes. This was very exciting for me because I didn't realise it was a real term. Turns out it isn't, they have another cool name for numbers that have lots of factors but one of the Numberphile crew also likes the term Antiprime and that's good enough for me (:<br />
<br />
And they confirmed that 360 is one of these numbers.<br />
<br />
<iframe allowfullscreen="" frameborder="0" height="315" src="https://www.youtube.com/embed/2JM2oImb9Qg" width="560"></iframe>
</div>
Anonymoushttp://www.blogger.com/profile/04262099382492931312noreply@blogger.com0tag:blogger.com,1999:blog-6519665402831500163.post-67242675646479875722016-07-07T14:18:00.000+07:002016-07-07T14:18:12.901+07:00The 8 Times Tables Can Be Cool<div dir="ltr" style="text-align: left;" trbidi="on">
As many of my students know I do not enjoy times tables. I missed quite a bit of primary school maths so speedy tables are not my thing. In particular it's the 8s that make me pause the most. Speed doesn't matter, it's the process. For me it's just doubling my four times tables.<br />
<br />
Bec Campbell shared the following with me and yes it is pretty cool. Even cooler is to ask why it happens....<br />
<br />
<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgzCG5ccOgRzlBSuyDmh6ws9BnmjKf_9getNYMrWJeZtuIrhOZjWSlKmi8HVuQhRaGnOzJl7ELUc5mBTw9BEN5VEbMwG2Mf_IDPFA6mmIztvXBzY-fYv-goR7qs3691qm_pVs2jSuPgA-1g/s1600/cool+8s.PNG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="320" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgzCG5ccOgRzlBSuyDmh6ws9BnmjKf_9getNYMrWJeZtuIrhOZjWSlKmi8HVuQhRaGnOzJl7ELUc5mBTw9BEN5VEbMwG2Mf_IDPFA6mmIztvXBzY-fYv-goR7qs3691qm_pVs2jSuPgA-1g/s320/cool+8s.PNG" width="290" /></a></div>
<br /></div>
Anonymoushttp://www.blogger.com/profile/04262099382492931312noreply@blogger.com0tag:blogger.com,1999:blog-6519665402831500163.post-1551006127704167032016-06-09T05:24:00.001+07:002016-06-09T05:24:55.678+07:00<div dir="ltr" style="text-align: left;" trbidi="on">
Thanks to Aidan and 7D for sharing this funny mathematics from Abbot and Costello<br />
<br />
Check out "Who's on First?", also by them. It's one of my favourites.<br />
<br /><iframe width="420" height="315" src="https://www.youtube.com/embed/MS2aEfbEi7s" frameborder="0" allowfullscreen></iframe>
<br /></div>Anonymoushttp://www.blogger.com/profile/04262099382492931312noreply@blogger.com0tag:blogger.com,1999:blog-6519665402831500163.post-50435138608359181352016-06-01T13:11:00.001+07:002016-06-01T13:11:10.960+07:00It's been a while, babies and blue whales<div dir="ltr" style="text-align: left;" trbidi="on">
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">Year 7 has been very busy in term two doing things like school camps and NAPLAN. </span><br />
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">Now we are back with our full weeks of math and looking at patterns in the real world. </span><br />
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;"><br /></span>
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">Today we looked at the growth rate of babies in their first 13 weeks. </span><br />
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;"><br /></span>
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">The WHO provides the data - we used every two weeks to develop models for predicting - interpolating and extrapolating. This way we could check our maths with the real data! </span><br />
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;"><br /></span>
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">We used tables, graphs and developing algebraic rules to make predictions and compared their results. Alex pointed out how ridiculous it would be to keep using our models into teenage years to illustrate how extrapolation can be unreliable. Here are some notes from today and Alex's example:</span><br />
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;"><br /></span>
<div style="text-align: left;">
<span style="color: white; font-family: Helvetica Neue, Arial, Helvetica, sans-serif;"><b><span style="line-height: 19.2px;">How reliable are our models?</span></b></span></div>
<div style="font-size: 12px; line-height: 19.2px; padding-left: 64px; padding-right: 0px;">
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">Reasonably reliable for interpolating. </span></div>
<div style="font-size: 12px; line-height: 19.2px; padding-left: 64px; padding-right: 0px;">
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">Not as reliable for extrapolating. Remember Alex calculated the weight of a 13 year old at the same growth rate as babies in their first 13 weeks. </span></div>
<div style="font-size: 12px; line-height: 19.2px; padding-left: 64px; padding-right: 0px;">
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;"><br /></span></div>
<h3 style="font-size: 15px; margin: 0px; padding: 0px 0px 0px 64px;">
<strong><span style="color: white; font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">13 years = 13 x 52 weeks</span></strong></h3>
<h3 style="font-size: 15px; margin: 0px; padding: 0px 0px 0px 64px;">
<strong><span style="color: white; font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">13 years = 676 weeks</span></strong></h3>
<h1 style="color: #204a87; font-size: 21px; margin: 0px; padding: 0px;">
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;"><br /></span></h1>
<h1 style="font-size: 21px; margin: 0px; padding: 0px;">
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;"><span style="color: white;">Our formula/equation/rule</span></span></h1>
<div style="line-height: 19.2px; padding-left: 64px; padding-right: 0px;">
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">Let t = time weeks and </span><span style="font-family: 'Helvetica Neue', Arial, Helvetica, sans-serif; line-height: 19.2px;">k = weight in kg</span></div>
<div style="line-height: 19.2px; padding-left: 64px; padding-right: 0px;">
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">k = 0.25 x t + 3.3</span></div>
<div style="line-height: 19.2px; padding-left: 64px; padding-right: 0px;">
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">for 13 years old</span></div>
<div style="line-height: 19.2px; padding-left: 64px; padding-right: 0px;">
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">k = 0.25 x 676 + 3.3</span></div>
<div style="line-height: 19.2px; padding-left: 64px; padding-right: 0px;">
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;"><br /></span></div>
<h2 style="font-size: 18px; margin: 0px; padding: 0px 0px 0px 64px;">
<span style="color: white; font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">k = 172.3 kg </span></h2>
<div style="font-size: 12px; line-height: 19.2px; padding-left: 96px; padding-right: 0px;">
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;"><br /></span></div>
<div style="line-height: 19.2px; padding-left: 96px; padding-right: 0px;">
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">That's not average in any country for a 13 year old boy!</span></div>
<div style="line-height: 19.2px; padding-left: 96px; padding-right: 0px;">
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">The CDC, in the USA, says the average weight for a male at 13 years old is <b>51.68229 kg </b>That's more than 100 kg lighter than our formula says. </span></div>
<div style="line-height: 19.2px; padding-left: 96px; padding-right: 0px;">
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">Can you find the average weight of a 13 year old in another country?</span></div>
<div style="line-height: 19.2px; padding-left: 96px; padding-right: 0px;">
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;"><span style="font-size: x-small;">Source: <a href="http://www.cdc.gov/growthcharts/html_charts/wtage.htm#males" target="_blank">Growth Charts of Children - CDC</a></span></span></div>
<div style="font-size: 12px; line-height: 19.2px; padding-left: 96px; padding-right: 0px;">
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;"><br /></span></div>
<div style="font-size: 12px; line-height: 19.2px; padding-left: 96px; padding-right: 0px;">
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;"><br /></span></div>
<h1 style="font-size: 21px; margin: 0px; padding: 0px 0px 0px 32px;">
<span style="color: white; font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">BABY BLUE WHALES</span></h1>
<div style="padding-left: 32px; padding-right: 0px;">
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;"><span style="line-height: 19.2px;">We talked about including units on our work to show kilograms otherwise our baby data could be in tonnes or even milligrams. A 3 tonne baby! Crazy!</span></span></div>
<div style="padding-left: 32px; padding-right: 0px;">
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;"><span style="line-height: 19.2px;">... or not....? I did some searching....</span></span></div>
<div style="line-height: 19.2px; padding-left: 32px; padding-right: 0px;">
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;"><br /></span></div>
<div style="line-height: 19.2px; padding-left: 32px; padding-right: 0px;">
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">For interest: Close to 3 tonnes are baby blue whales and their average difference is about 91 kg a day!!</span></div>
<div style="line-height: 19.2px; padding-left: 32px; padding-right: 0px;">
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">Their formula would be<b> k = 91 x d + 3000</b> and reliable for 365 days! </span></div>
<div style="line-height: 19.2px; padding-left: 32px; padding-right: 0px;">
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">where<b> k = weight in kilograms</b> and <b>d = time in days</b>. <b>3000 is the initial value</b> (or 2700 - see below). </span></div>
<div class="mod" data-md="61" style="background-color: white; clear: none; color: #222222; line-height: 15.6px; padding-left: 20px; padding-right: 20px; padding-top: 20px;">
<div class="_oDd" data-hveid="26" style="overflow: hidden; padding-bottom: 20px;">
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif; font-size: x-small;"><span class="_Tgc"></span></span><div class="mod" data-md="61" style="clear: none; line-height: 15.6px; padding-left: 20px; padding-right: 20px;">
<div class="_oDd" data-hveid="32" style="overflow: hidden; padding-bottom: 20px;">
<span class="_Tgc"><span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif; font-size: x-small;">After about a year inside its mother's womb, a baby blue whale emerges weighing up to 3 tons (2.7 metric tons) and stretching to 25 feet (8 meters). It gorges on nothing but mother's milk and gains <b>about 200 pounds</b>(91 kilograms) every day for its first year.</span></span></div>
</div>
<div class="g" style="clear: both; line-height: 15.6px; margin: 0px; padding-bottom: 20px; padding-left: 20px; padding-right: 20px;">
<div class="rc" data-hveid="34" style="clear: both; padding-bottom: 0px; position: relative;">
<h3 class="r" style="color: #204a87; font-weight: normal; margin: 0px; overflow: hidden; padding: 0px; text-overflow: ellipsis; white-space: nowrap;">
<a data-cke-saved-href="http://animals.nationalgeographic.com.au/animals/mammals/blue-whale/" href="http://animals.nationalgeographic.com.au/animals/mammals/blue-whale/" style="color: #660099; cursor: pointer; text-decoration: none; transition: text-shadow 0.5s;"><span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif; font-size: x-small;">Blue Whales, Blue Whale Pictures, Blue Whale Facts - National ...</span></a></h3>
<div class="s" style="color: #545454; line-height: 18px; max-width: 48em;">
<div class="f kv _SWb" style="color: grey; height: 17px; line-height: 16px; white-space: nowrap;">
<cite class="_Rm" style="color: #006621; font-style: normal;"><span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif; font-size: x-small;">animals.nationalgeographic.com.au/animals/mammals/<b>blue</b>-<b>whale</b>/</span></cite></div>
</div>
</div>
</div>
</div>
</div>
<h1 style="color: #204a87; font-size: 21px; margin: 0px; padding: 0px;">
<br /></h1>
</div>
Anonymoushttp://www.blogger.com/profile/04262099382492931312noreply@blogger.com0tag:blogger.com,1999:blog-6519665402831500163.post-75138557136322786812016-04-19T06:18:00.002+07:002016-04-19T08:54:57.090+07:00Scientists need you to count cute baby penguins via the Washington Post<div dir="ltr" style="text-align: left;" trbidi="on">
<br />
<br />
During my morning commute I read about a great project involving penguins, counting, science, ecology and collaboration. That's a lot of boxes ticked.<br />
<br />
You can provide some community service by counting penguins in images supplied by scientists.<br />
<br />
I was fortunate enough to visit Antarctica in 2013 and loved the penguins. I'll be counting penguins for science and our world. I hope you do too.<br />
<br />
You can read the <a href="https://www.washingtonpost.com/news/animalia/wp/2016/04/16/scientists-need-you-to-count-cute-baby-penguins/" target="_blank">Washington Post article via this link</a>.<br />
You can check out <a href="https://blog.zooniverse.org/tag/penguin-watch-2-0/" target="_blank">the project via this link.</a><br />
<br />
Please enjoy two of my favourite penguin photos (I have hundreds)!<br />
<br />
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgCmabUZFbTKvVby1-_-AGlqw4a4ViEJVszTlN47LtH2SqIfzHiFA7YVee5x9hWO9WqBPyVRBpFbY9LpyvBghscS3rPcvvJvNUqhNfT-Brj3tG6ggdvETN3edqR6dPSDcBSGYSHbwzQw4-L/s1600/pengins+and+other+wildlife.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" height="480" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgCmabUZFbTKvVby1-_-AGlqw4a4ViEJVszTlN47LtH2SqIfzHiFA7YVee5x9hWO9WqBPyVRBpFbY9LpyvBghscS3rPcvvJvNUqhNfT-Brj3tG6ggdvETN3edqR6dPSDcBSGYSHbwzQw4-L/s640/pengins+and+other+wildlife.jpg" width="640" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Antarctica Wildlife</td></tr>
</tbody></table>
<br />
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgY2YMq6V17yyJeakgtYzOpIC1uy62e5TopWTt_YHxpe7e7AAxAp9skuRYMZPHV6M48VBk-tq8mzQ25Rl1Bvd5-mcX193wcQzITAB3l7LmNeIL908doqWe9ILbCBdspeA5MHP8usYKz7n6U/s1600/penguins+with+krill.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" height="275" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgY2YMq6V17yyJeakgtYzOpIC1uy62e5TopWTt_YHxpe7e7AAxAp9skuRYMZPHV6M48VBk-tq8mzQ25Rl1Bvd5-mcX193wcQzITAB3l7LmNeIL908doqWe9ILbCBdspeA5MHP8usYKz7n6U/s400/penguins+with+krill.jpg" width="400" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Not all penguin tummies are white. This one is fine, just a messy eater. That's his lunch you can see. </td></tr>
</tbody></table>
<br /></div>
Anonymoushttp://www.blogger.com/profile/04262099382492931312noreply@blogger.com0tag:blogger.com,1999:blog-6519665402831500163.post-30329776478439980372016-04-09T13:40:00.003+07:002016-04-09T13:40:58.618+07:00Base 64 and Youtube<div dir="ltr" style="text-align: left;" trbidi="on">
We use base 10 and computers use base 2, aka binary. There are all sorts of number systems and here is another one to think about and it's how Youtube doesn't run out of short urls.<br />
<br />
<div class="separator" style="clear: both; text-align: center;">
<iframe width="320" height="266" class="YOUTUBE-iframe-video" data-thumbnail-src="https://i.ytimg.com/vi/gocwRvLhDf8/0.jpg" src="https://www.youtube.com/embed/gocwRvLhDf8?feature=player_embedded" frameborder="0" allowfullscreen></iframe></div>
<br /></div>
Anonymoushttp://www.blogger.com/profile/04262099382492931312noreply@blogger.com0tag:blogger.com,1999:blog-6519665402831500163.post-37054426991852407232016-04-05T12:03:00.002+07:002016-04-05T12:03:48.930+07:00Cool Maths Facts<div dir="ltr" style="text-align: left;" trbidi="on">
Check out these slides of interesting maths facts.<br />
I think the Monster Prime might be out of date now...<br />
<br />
<h2 style="text-align: left;">
<span style="font-size: x-large;"><a href="http://www.factslides.com/s-Math" target="_blank">SLIDES FOUND HERE</a></span></h2>
<div>
<br /></div>
<div>
I like this site because they cite their source on each page. That's principled!</div>
</div>
Anonymoushttp://www.blogger.com/profile/04262099382492931312noreply@blogger.com0tag:blogger.com,1999:blog-6519665402831500163.post-56212763123346610552016-03-03T09:09:00.001+07:002016-03-03T09:09:17.409+07:00So You Want to Code? Cool!<div dir="ltr" style="text-align: left;" trbidi="on">
When we looked at binary numbers and compared them to our lovely Base 10 Decimal number system some of you mentioned that you were interested in learning to code.<br />
<br />
You don't have to wait to be shown or taught, you can access so many wonderful learning tools on the internet.<br />
<br />
Amazing people have produced The Hour of Code, where you can start coding in just one hour.<br />
<br />
They have many different types of code to learn so it doesn't have to end after one hour.<br />
<br />
Why learn to code? It's everywhere<br />
<br />
<iframe allowfullscreen="" frameborder="0" height="315" src="https://www.youtube.com/embed/qYZF6oIZtfc" width="560"></iframe>
<br />
<iframe allowfullscreen="" frameborder="0" height="315" src="https://www.youtube.com/embed/FC5FbmsH4fw" width="560"></iframe>
<br />
Where to begin:<br />
<br />
Try these one hour sessions from the <a href="https://studio.code.org/" target="_blank">Hour of Code</a><br />
<a href="https://studio.code.org/flappy/1" target="_blank">Make your own Flappy Bird game</a><br />
<a href="https://studio.code.org/hoc/1" target="_blank">Figure out a few mazes with Bill Gates</a><br />
<a href="https://studio.code.org/s/artist/stage/1/puzzle/1" target="_blank">Create beautiful spirals and designs</a><br />
<a href="https://code.org/starwars" target="_blank">Star Wars fun</a> - this one is new, I haven't tried it yet. Exciting!<br />
<br />
<br /></div>
Anonymoushttp://www.blogger.com/profile/04262099382492931312noreply@blogger.com0tag:blogger.com,1999:blog-6519665402831500163.post-80801965127233026992016-03-02T09:47:00.000+07:002016-03-02T09:47:21.045+07:00The BBC and Your Life So Far..<div dir="ltr" style="text-align: left;" trbidi="on">
A while ago for another class I posted a cool created by the BBC.<br />
<br />
http://thisismathsland.blogspot.com.au/2014/10/your-life-on-earth-cool-interactive.html<br />
<br />
Input some data about yourself and then see what has happened since you were born...<br />
<br />
There are some very big numbers for you to enjoy.<br />
<br />
<br /></div>
Anonymoushttp://www.blogger.com/profile/04262099382492931312noreply@blogger.com0tag:blogger.com,1999:blog-6519665402831500163.post-34795131171465099002016-02-24T15:38:00.001+07:002016-02-24T15:38:50.850+07:00BIG NUMBERS and a COOL SITE<div dir="ltr" style="text-align: left;" trbidi="on">
Thanks to Tom Avent for sharing two Youtube channels I had not seen before, and I like to watch science and maths videos. I spent about an hour looking around.<br />
<br />
Here is one to get you started with some big numbers from the good people at <a href="https://www.youtube.com/user/AsapSCIENCE" target="_blank">ASAP Science:</a><br />
<br />
<div class="separator" style="clear: both; text-align: center;">
<iframe width="320" height="266" class="YOUTUBE-iframe-video" data-thumbnail-src="https://i.ytimg.com/vi/Y52e551lU50/0.jpg" src="https://www.youtube.com/embed/Y52e551lU50?feature=player_embedded" frameborder="0" allowfullscreen></iframe></div>
<div class="separator" style="clear: both; text-align: left;">
But wait... there's more...</div>
<div class="separator" style="clear: both; text-align: left;">
This is another excellent <a href="https://www.youtube.com/user/fwthinking" target="_blank">Youtube channel called FW Thinking</a>. </div>
<div class="separator" style="clear: both; text-align: left;">
<br /></div>
<div class="separator" style="clear: both; text-align: left;">
Enjoy! I did (:</div>
<div class="separator" style="clear: both; text-align: center;">
<br /></div>
<br /></div>
Anonymoushttp://www.blogger.com/profile/04262099382492931312noreply@blogger.com0tag:blogger.com,1999:blog-6519665402831500163.post-86064450402486258792016-02-18T14:49:00.000+07:002016-02-18T14:49:07.135+07:00Roman Numerals <div dir="ltr" style="text-align: left;" trbidi="on">
Hello all - Catherine Fee shared this video with me and we watched it in class to look at a way of communicating your knowledge and understanding of a number system from history.<br />
<br />
Thanks Catherine!<br />
<div class="separator" style="clear: both; text-align: center;">
<iframe width="320" height="266" class="YOUTUBE-iframe-video" data-thumbnail-src="https://i.ytimg.com/vi/49oWYxExWKE/0.jpg" src="https://www.youtube.com/embed/49oWYxExWKE?feature=player_embedded" frameborder="0" allowfullscreen></iframe></div>
<br /></div>
Anonymoushttp://www.blogger.com/profile/04262099382492931312noreply@blogger.com0tag:blogger.com,1999:blog-6519665402831500163.post-50958166075028850342016-02-15T13:35:00.000+07:002016-02-18T14:47:21.148+07:00Mathematical Humour <div dir="ltr" style="text-align: left;" trbidi="on">
Thanks to Jack Edwards, in 7D, for sharing this Mathematical joke. Have you seen any funny mathematical jokes?<br />
<br />
<br />
<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgIoNQdZ8ywCTy1ihzQuyMGJfdFTSAYYvFVPEIfj095DjfVoQtQ3_lY77ptdx4m0b_3Z-1kqvh-WdeMnom_ubb4F1cyL278lSLlLKkxIOAs65l5vrJUuDOlKKnL-RD26iV8MKn8whpbgNhh/s1600/Jake+Blog+i+ate+some+pi.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="214" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgIoNQdZ8ywCTy1ihzQuyMGJfdFTSAYYvFVPEIfj095DjfVoQtQ3_lY77ptdx4m0b_3Z-1kqvh-WdeMnom_ubb4F1cyL278lSLlLKkxIOAs65l5vrJUuDOlKKnL-RD26iV8MKn8whpbgNhh/s320/Jake+Blog+i+ate+some+pi.JPG" width="320" /></a></div>
<div class="separator" style="clear: both; text-align: center;">
<span style="text-align: left;">Thanks to Stephen Guerra, in 7D, </span></div>
<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiNrKpVpei8zJ5n6JwoL3xzSOKC9PM2eVx2sUGMaR1I-ERXdplSVaqoia6GedjycSk8DJGqnXyvjOVREcLoYCaKv1L9cVkuuoUv_UXQtqtng_8t1dGQABGBaRp9In8s-bV8v_OfO1fk8Ua5/s1600/Blog+Math+7+Stephen+Guerra+Joke.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="170" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiNrKpVpei8zJ5n6JwoL3xzSOKC9PM2eVx2sUGMaR1I-ERXdplSVaqoia6GedjycSk8DJGqnXyvjOVREcLoYCaKv1L9cVkuuoUv_UXQtqtng_8t1dGQABGBaRp9In8s-bV8v_OfO1fk8Ua5/s320/Blog+Math+7+Stephen+Guerra+Joke.jpg" width="320" /></a></div>
<br /></div>
Anonymoushttp://www.blogger.com/profile/04262099382492931312noreply@blogger.com0tag:blogger.com,1999:blog-6519665402831500163.post-43609619587390818602016-02-15T13:21:00.000+07:002016-02-15T13:21:05.865+07:00History of Number Systems Investigation - some links<div dir="ltr" style="text-align: left;" trbidi="on">
<span style="font-family: inherit;">Where to begin when looking for information on different number systems?</span><br />
<span style="font-family: inherit;"><br /></span>
<span style="font-family: inherit;">You could ask your parents - maybe they know about a cool system for numbers and counting. </span><br />
<span style="font-family: inherit;"><br /></span>
<span style="font-family: inherit;">You could ask your librarian - there are books about mathematics!</span><br />
<span style="font-family: inherit;"><br /></span>
<span style="font-family: inherit;">There are some sites online too. Ms. O'Hara and I have found some sites to share with you.</span><br />
<span style="font-family: inherit;">If you search, use good search terms. One of my favourites is "for kids". I use this in almost every search I do (:</span><br />
<span style="font-family: inherit;"><br /></span>
<span style="font-family: inherit;">Binary at mathisfun <a href="http://www.mathsisfun.com/binary-number-system.html">http://www.mathsisfun.com/binary-number-system.html</a></span><br />
<span style="font-family: inherit;">Counting on your fingers with binary <a href="http://www.mathsisfun.com/numbers/binary-count-fingers.html">http://www.mathsisfun.com/numbers/binary-count-fingers.html</a></span><br />
<span style="font-family: inherit;"><br /></span>
<span style="font-family: inherit;">Roman Numerals <a href="http://www.ducksters.com/kidsmath/roman_numerals.php">http://www.ducksters.com/kidsmath/roman_numerals.php</a></span><br />
<span style="font-family: inherit;"><br /></span>
<span style="font-family: inherit;">Archimedes Lab <a href="http://www.archimedes-lab.org/numeral.html">http://www.archimedes-lab.org/numeral.html</a></span><br />
<span style="font-family: inherit;"><br /></span>
<span style="font-family: inherit;"><a href="https://www.youtube.com/user/numberphile" target="_blank">Numberphile</a> is a wonderful Youtube channel</span><br />
<div class="separator" style="clear: both; text-align: center;">
<span style="font-family: inherit;"><iframe width="320" height="266" class="YOUTUBE-iframe-video" data-thumbnail-src="https://i.ytimg.com/vi/U6xJfP7-HCc/0.jpg" src="https://www.youtube.com/embed/U6xJfP7-HCc?feature=player_embedded" frameborder="0" allowfullscreen></iframe></span></div>
<span style="font-family: inherit;"><br /></span>
<div class="MsoNormal">
<span style="color: #1f497d;">This one has a long list of number systems and labels their complexity or simplicity with happy and not so happy faces. <a href="http://gwydir.demon.co.uk/jo/numbers/comparison.htm">http://gwydir.demon.co.uk/jo/numbers/comparison.htm</a> <o:p></o:p></span></div>
<div class="MsoNormal">
<span style="font-family: inherit;"><span style="color: #1f497d;">Another page on this site is </span><span style="color: #1f497d;"><a href="http://gwydir.demon.co.uk/jo/numbers/index.htm">http://gwydir.demon.co.uk/jo/numbers/index.htm</a> with a few famous number systems.</span></span></div>
<div class="MsoNormal">
<span style="color: #1f497d;"><br /></span></div>
<span style="color: #1f497d; font-size: 11pt;"><span style="font-family: inherit;">This is a bit more ‘wordy’: <a href="http://www.math.wichita.edu/history/topics/num-sys.html">http://www.math.wichita.edu/history/topics/num-sys.html</a></span></span><br />
<span style="color: #1f497d; font-size: 11pt;"><br /></span>
<div class="MsoNormal">
<span style="font-family: inherit;"><span style="color: #1f497d;">This site had some interesting facts, but it might be a little challenging with its sophisticated matheamatical language </span><a href="http://mentalfloss.com/article/31879/12-mind-blowing-number-systems-other-languages">http://mentalfloss.com/article/31879/12-mind-blowing-number-systems-other-languages</a></span></div>
</div>
Anonymoushttp://www.blogger.com/profile/04262099382492931312noreply@blogger.com0tag:blogger.com,1999:blog-6519665402831500163.post-4528273029738846982016-02-14T10:49:00.000+07:002016-02-14T11:15:52.835+07:00Billy the Bug and Graph Mole are Hungry<div dir="ltr" style="text-align: left;" trbidi="on">
Hello Grade 7 or anyone else that struggles with plotting, reading or writing coordinates.<br />
<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgYZSh96cPAc7ghAAD9BEd3biZCJ7HMPLGf_cA36AGLifNfdEVewXEXPDRSZI0T5D6ap_1QieoHxlDyXnPz2SYo772s5tXKy8pap_4iSj1n0uOYwrvGxdmPoRGXP9K-l94Lu7_KkfSnlyqg/s1600/billy+the+bug.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="118" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgYZSh96cPAc7ghAAD9BEd3biZCJ7HMPLGf_cA36AGLifNfdEVewXEXPDRSZI0T5D6ap_1QieoHxlDyXnPz2SYo772s5tXKy8pap_4iSj1n0uOYwrvGxdmPoRGXP9K-l94Lu7_KkfSnlyqg/s320/billy+the+bug.JPG" width="320" /></a></div>
<br />
Use a game to learn how to do this. No worksheets required!<br />
Learn through the game and mistakes along the way. Feed Billy, he's hungry...<br />
<br />
<a href="http://www.oswego.org/ocsd-web/games/BillyBug/bugcoord.html" target="_blank">Billy the Bug - right here!</a><br />
<br />
<br />
<a href="http://funbasedlearning.com/algebra/graphing/points/default.htm" target="_blank">Graph Mole</a> has extension activities - negative indices and also decimals. You start with positive integers.<br />
<br />
<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjLKz82TNYhAwsHwlzkvM1P1B8O1oy-sx6xGUYLNMt-889mcTLYkBYVB1HjqviK0ZtViD4vaWBu_Uj7nAMta9FL0CVkhuZr1ZC9ushRqDQKffl3NRJ2uw7N4_w8FkTrnOUE_RwXLsPn00Sa/s1600/7D+graph+mole.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="234" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjLKz82TNYhAwsHwlzkvM1P1B8O1oy-sx6xGUYLNMt-889mcTLYkBYVB1HjqviK0ZtViD4vaWBu_Uj7nAMta9FL0CVkhuZr1ZC9ushRqDQKffl3NRJ2uw7N4_w8FkTrnOUE_RwXLsPn00Sa/s320/7D+graph+mole.JPG" width="320" /></a></div>
<br /></div>
Anonymoushttp://www.blogger.com/profile/04262099382492931312noreply@blogger.com0tag:blogger.com,1999:blog-6519665402831500163.post-38404226281586030302016-02-12T06:35:00.000+07:002016-02-18T14:53:40.197+07:00Student Mathematical Art - Year 7 2016 <div dir="ltr" style="text-align: left;" trbidi="on">
Have you been enjoying <a href="http://nathanfriend.io/inspirograph/">Spirograph online</a>?<br />
<br />
Oli Bilston shared his beautiful work with me in class and then sent me the image. Do you have any you'd like to contribute to this page? Scroll to see more...<br />
<br />
<table cellpadding="0" cellspacing="0" class="tr-caption-container" style="float: left; margin-right: 1em; text-align: left;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhgZndswj_wSqDVbtvjn1bJXYor1WtP1BzfqR1k4Ci1mctyHUIMi0ZRdlTczY5gVWLVAZy6TeLi2gqfplEhrWBHCrGUQOI9kgKxg5wDh2KLNVxsJYeGt4RxHPjEglK2BfJ1wy6GKYIbKAHD/s1600/7+Maths+Blog+Oli+Spirograph.JPG" imageanchor="1" style="clear: left; margin-bottom: 1em; margin-left: auto; margin-right: auto;"><img border="0" height="318" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhgZndswj_wSqDVbtvjn1bJXYor1WtP1BzfqR1k4Ci1mctyHUIMi0ZRdlTczY5gVWLVAZy6TeLi2gqfplEhrWBHCrGUQOI9kgKxg5wDh2KLNVxsJYeGt4RxHPjEglK2BfJ1wy6GKYIbKAHD/s400/7+Maths+Blog+Oli+Spirograph.JPG" width="400" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Oli Bilston 7D Wesley GW</td></tr>
</tbody></table>
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<table cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: left;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj0UXk-JWfLXHuAEJp3jwB7ABP-T3VFxzXqg1o9drHwU0v8LwMy2QGAAdzPyhs2hHQEcXFSZyUDhiQ0FVFcGTpC4loZfJZAdzBb0dKefASOibpZm66UVS-7UE0mXKS4Hw0Vm7ZNVbbK62eG/s1600/7D+Spirograph+Blog+Art+Stephen+Guerra.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" height="282" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj0UXk-JWfLXHuAEJp3jwB7ABP-T3VFxzXqg1o9drHwU0v8LwMy2QGAAdzPyhs2hHQEcXFSZyUDhiQ0FVFcGTpC4loZfJZAdzBb0dKefASOibpZm66UVS-7UE0mXKS4Hw0Vm7ZNVbbK62eG/s400/7D+Spirograph+Blog+Art+Stephen+Guerra.jpg" width="400" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;"><table cellpadding="0" cellspacing="0" class="tr-caption-container" style="float: left; margin-right: 1em;"><tbody>
<tr><td class="tr-caption" style="font-size: 12.8px; text-align: center;"><div style="text-align: left;">
Stephen Guerra 7D Wesley GW</div>
</td></tr>
</tbody></table>
</td></tr>
</tbody></table>
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="float: left; margin-right: 1em; text-align: left;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhHzM_suU4VtBDD8TDa3B2UV6sjFXeJVF8YGYMQ0wEoS1zYmr01gKkv0Ms2kT7dHxALjOb-xz0uxP-mLnwNrtggO-_lxedE0RYY80TOniNWwql1VpaBu3i6Ev2gdvD2M7rzuxdISk3PvZ6J/s1600/Blog+Math+7+Stephen+Guerra+Spirograph+3.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" height="282" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhHzM_suU4VtBDD8TDa3B2UV6sjFXeJVF8YGYMQ0wEoS1zYmr01gKkv0Ms2kT7dHxALjOb-xz0uxP-mLnwNrtggO-_lxedE0RYY80TOniNWwql1VpaBu3i6Ev2gdvD2M7rzuxdISk3PvZ6J/s400/Blog+Math+7+Stephen+Guerra+Spirograph+3.jpg" width="400" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;"><table cellpadding="0" cellspacing="0" class="tr-caption-container" style="float: left; margin-right: 1em;"><tbody>
<tr><td class="tr-caption" style="font-size: 12.8px; text-align: center;">Stephen Guerra 7D Wesley GW<br />
<div>
<br /></div>
</td></tr>
</tbody></table>
</td></tr>
</tbody></table>
<br />
<table cellpadding="0" cellspacing="0" class="tr-caption-container" style="float: left; margin-right: 1em; text-align: left;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiTss_f-mE9JnLidlPz4VdCOLK4tF43uybKQgq_AoOcv0uFfvINqqi3vFTVjOhaiY001kBpJ9UevpXDqyfv-AzzHD27D4dZdIuANj1j_xYEElgm7YHd-V6MyljMEPqAzaGOGnqm2Kh6AfZw/s1600/7D+Stephen+Spirograph.JPG" imageanchor="1" style="clear: left; margin-bottom: 1em; margin-left: auto; margin-right: auto;"><img border="0" height="281" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiTss_f-mE9JnLidlPz4VdCOLK4tF43uybKQgq_AoOcv0uFfvINqqi3vFTVjOhaiY001kBpJ9UevpXDqyfv-AzzHD27D4dZdIuANj1j_xYEElgm7YHd-V6MyljMEPqAzaGOGnqm2Kh6AfZw/s400/7D+Stephen+Spirograph.JPG" width="400" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Stephen Guerra 7D Wesley GW<br />
<br />
<br /></td></tr>
</tbody></table>
<br />
<table cellpadding="0" cellspacing="0" class="tr-caption-container" style="float: left; margin-right: 1em; text-align: left;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjZnRHNQUENh30vSzby_089TyVp_8ERdSyAmkqZOwiTuCUwgfJqfHvcoCYXGL1GGe1Yy7gpZ-JqEQ3zhHJ5-jP6ulfaJBtt4pirhDKU2GYYCR8_fMJJ4ZQgmtbq4pjg_iRdpFNnz-QyhMc_/s1600/7D+Spirograph+Blog+Art+Bec+Campbell.jpg.PNG" imageanchor="1" style="clear: left; margin-bottom: 1em; margin-left: auto; margin-right: auto;"><img border="0" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjZnRHNQUENh30vSzby_089TyVp_8ERdSyAmkqZOwiTuCUwgfJqfHvcoCYXGL1GGe1Yy7gpZ-JqEQ3zhHJ5-jP6ulfaJBtt4pirhDKU2GYYCR8_fMJJ4ZQgmtbq4pjg_iRdpFNnz-QyhMc_/s400/7D+Spirograph+Blog+Art+Bec+Campbell.jpg.PNG" width="398" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Bec Campbell 7D Wesley GW</td></tr>
</tbody></table>
</div>
Anonymoushttp://www.blogger.com/profile/04262099382492931312noreply@blogger.com0tag:blogger.com,1999:blog-6519665402831500163.post-35017238928374331162016-02-09T16:53:00.000+07:002016-02-09T17:15:00.985+07:00Growing your Brain<div dir="ltr" style="text-align: left;" trbidi="on">
You've heard me talk about making mistakes and taking your time. Here is an expert, Jo Boaler, taking you through some of the latest in brain research. Jo is a professor of Mathematics Education at Stanford University in the USA.<br />
<br />
<div class="separator" style="clear: both; text-align: center;">
<iframe allowfullscreen="" class="YOUTUBE-iframe-video" data-thumbnail-src="https://i.ytimg.com/vi/bxrPy1fjVU4/0.jpg" frameborder="0" height="266" src="https://www.youtube.com/embed/bxrPy1fjVU4?feature=player_embedded" width="320"></iframe></div>
<div class="separator" style="clear: both; text-align: center;">
<br /></div>
<div class="separator" style="clear: both; text-align: center;">
<br /></div>
<div class="separator" style="clear: both; text-align: left;">
Remember 18 x 5 and all the different ways to solve this problem. </div>
<div class="separator" style="clear: both; text-align: left;">
Which was your method? Show your method and try another. </div>
<div class="separator" style="clear: both; text-align: left;">
<br /></div>
<div class="separator" style="clear: both; text-align: left;">
Do the same using your method and one other with 16 x 7 or 14 x 22</div>
<div class="separator" style="clear: both; text-align: left;">
Show your working you did in your head visually like the examples below for 18 x 5</div>
<div class="separator" style="clear: both; text-align: center;">
<a href="https://www.youcubed.org/wp-content/uploads/2015/09/Visual-Image-fix-18-x-5.jpg" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" height="132" src="https://www.youcubed.org/wp-content/uploads/2015/09/Visual-Image-fix-18-x-5.jpg" width="400" /></a></div>
<div class="separator" style="clear: both; text-align: left;">
<br /></div>
<br /></div>
Anonymoushttp://www.blogger.com/profile/04262099382492931312noreply@blogger.com0tag:blogger.com,1999:blog-6519665402831500163.post-81072603711208992602016-02-05T12:54:00.000+07:002016-02-05T12:54:45.889+07:00The Human Calculator<div dir="ltr" style="text-align: left;" trbidi="on">
Thank you to Aidan Sturge. I did enjoy and was pleased to start class with it today. I am also keen to check out that Youtube channel. Thanks for sharing!<br />
<br />
<div style="background-color: white; color: #222222; font-family: arial, sans-serif; font-size: 12.8px;">
<div style="border-style: solid none none; border-top-color: rgb(225, 225, 225); border-top-width: 1pt; padding: 3pt 0cm 0cm;">
<div class="MsoNormal" style="font-family: Calibri, sans-serif; font-size: 11pt; margin: 0cm 0cm 0.0001pt;">
<b><span lang="EN-US">From:</span></b><span lang="EN-US"> Aidan Sturge<br /><b>Subject:</b> human calculator<u></u><u></u></span></div>
</div>
</div>
<div class="MsoNormal" style="background-color: white; color: #222222; font-family: Calibri, sans-serif; font-size: 11pt; margin: 0cm 0cm 0.0001pt;">
<br /></div>
<div class="MsoNormal" style="background-color: white; color: #222222; font-family: Calibri, sans-serif; font-size: 11pt; margin: 0cm 0cm 0.0001pt;">
Check this video out this guy I saw on TV a while ago he is faster than a calculator the link is below:<u></u><u></u></div>
<div class="MsoNormal" style="background-color: white; color: #222222; font-family: Calibri, sans-serif; font-size: 11pt; margin: 0cm 0cm 0.0001pt;">
<div class="separator" style="clear: both; text-align: center;">
<iframe width="320" height="266" class="YOUTUBE-iframe-video" data-thumbnail-src="https://i.ytimg.com/vi/dtotrboSUqQ/0.jpg" src="https://www.youtube.com/embed/dtotrboSUqQ?feature=player_embedded" frameborder="0" allowfullscreen></iframe></div>
<br /></div>
<div class="MsoNormal" style="background-color: white; color: #222222; font-family: Calibri, sans-serif; font-size: 11pt; margin: 0cm 0cm 0.0001pt;">
<a href="https://www.youtube.com/watch?v=dtotrboSUqQ" style="color: #1155cc;" target="_blank">https://www.youtube.com/watch?<wbr></wbr>v=dtotrboSUqQ</a><u></u><u></u></div>
<div class="MsoNormal" style="background-color: white; color: #222222; font-family: Calibri, sans-serif; font-size: 11pt; margin: 0cm 0cm 0.0001pt;">
<br /></div>
<div class="MsoNormal" style="background-color: white; color: #222222; font-family: Calibri, sans-serif; font-size: 11pt; margin: 0cm 0cm 0.0001pt;">
Hope you enjoy<u></u><u></u></div>
<div class="MsoNormal" style="background-color: white; color: #222222; font-family: Calibri, sans-serif; font-size: 11pt; margin: 0cm 0cm 0.0001pt;">
<br /></div>
<div class="MsoNormal" style="background-color: white; color: #222222; font-family: Calibri, sans-serif; font-size: 11pt; margin: 0cm 0cm 0.0001pt;">
-Aidan</div>
</div>
Anonymoushttp://www.blogger.com/profile/04262099382492931312noreply@blogger.com0tag:blogger.com,1999:blog-6519665402831500163.post-4403527971754193422015-03-19T15:45:00.000+07:002015-10-11T13:43:49.704+07:00Spirograph! One of the things I loved the most as a kid<div dir="ltr" style="text-align: left;" trbidi="on">
Whenever I am in vintage or second hand shops I always look for Spirograph. I could twirl the things for ages making amazing designs.<br />
<br />
It's now online! I would prefer the set, but this is amazing.<br />
<br />
Make something beautiful and upload it to the gallery.<br />
<br />
Better yet investigate the mathematics in those designs.<br />
<br />
<a href="http://nathanfriend.io/inspirograph/" target="_blank">CHECK IT OUT HERE</a><br />
<br />
<div class="separator" style="clear: both; text-align: center;">
<br /></div>
<br /></div>
Anonymousnoreply@blogger.com0tag:blogger.com,1999:blog-6519665402831500163.post-21568055651539225822015-02-15T20:38:00.000+07:002015-02-15T20:38:23.623+07:00Noodles, hair, atoms, exponential growth and decay and fractions. This cool Youtube video has mathematics relevant for grade six and grade 11 courses right now.<br />
<br />
For grade six - they can compare it with the doubling we did when we discussed ebola. They can also look at half of a half - multiplying a fraction by a fraction or as we say in mathsland the product of two fractions.<br />
<br />
Grade 11 - this is exponential growth and decay simultaneously depending on how you view your noodles.<br />
<br />
<br />
<iframe allowfullscreen="" frameborder="0" height="315" src="https://www.youtube.com/embed/auhHl5-6VdY" width="420"></iframe>Anonymousnoreply@blogger.com0tag:blogger.com,1999:blog-6519665402831500163.post-53146803124512369112014-12-14T21:36:00.000+07:002015-10-11T13:46:37.248+07:00Maths and you guessed it... Christmas<div dir="ltr" style="text-align: left;" trbidi="on">
<span style="font-family: inherit;"><iframe allowfullscreen="" frameborder="0" height="315" src="//www.youtube.com/embed/7B9XVYSm80A" width="560"></iframe>
</span><br />
<span style="font-family: inherit;"><br /></span>
<span style="font-family: inherit;"><br /></span>
<span style="font-family: inherit;"><iframe allowfullscreen="" frameborder="0" height="315" src="//www.youtube.com/embed/_5Mkslq4T7w" width="420"></iframe><br /></span>
<span style="font-family: inherit;"><br /></span>
<span style="font-family: inherit;"><span style="font-size: x-large;"><b>Here is a gift for you from Mathsland </b></span>- a game. It's the latest thing and Jo Boaler of Stanford likes it so much she is now on the team..</span><br />
<span style="font-family: inherit;"><br /></span>
<span style="font-family: inherit;"><a href="https://www.mathbreakers.com/download/" target="_blank">Download Mathbreakers</a> and puzzle it out. It looks like Mathbreakers will just keep growing too.</span><br />
<span style="font-family: inherit;"><br /></span>
<span style="font-family: inherit;">And this ancient game - I haven't beaten the computer yet. Can you? <a href="http://www.coolmath-games.com/0-mancala/" target="_blank">Cool Math - Mancala</a></span><br />
<span style="font-family: inherit;"><br /></span>
<span style="font-family: inherit;">For the next game you will need a 10 by 10 grid - this is called How Close to 100? To make it more challenging try How Close to 1 and use decimals. This is from Jo Boaler.</span><br />
<span style="font-family: inherit;"><br /></span>
<div style="background: white;">
<span style="color: #444444;"><span style="font-family: inherit; line-height: 25.6000003814697px;">You will need</span></span></div>
<div style="background: white;">
<span style="color: #444444;"><span style="font-family: inherit; line-height: 25.6000003814697px;">• two players</span></span></div>
<div style="background: white;">
<span style="color: #444444;"><span style="font-family: inherit; line-height: 25.6000003814697px;">• two dice</span></span></div>
<div style="background: white;">
<span style="color: #444444;"><span style="font-family: inherit; line-height: 25.6000003814697px;">• recording sheet </span></span></div>
<div style="background: white;">
<span style="color: #444444;"><span style="font-family: inherit; line-height: 25.6000003814697px;"><br /></span></span></div>
<div class="separator" style="clear: both; text-align: left;">
</div>
<div class="separator" style="clear: both; text-align: left;">
<span style="font-family: inherit;"><br /></span></div>
<div style="background: white;">
<span style="font-family: inherit;"><br /></span></div>
<div style="background: white;">
<span style="color: #444444;"><span style="font-family: inherit; line-height: 25.6000003814697px;">This game is played in partners. Two children share a blank 100 grid. The first partner rolls two number dice.</span></span></div>
<div style="background: white;">
<span style="font-family: inherit;"><span style="color: #444444;"><span style="line-height: 25.6000003814697px;">The numbers that come up are the numbers the child uses to make an array on the 100 grid. They can put the </span></span><span style="color: #444444; line-height: 25.6000003814697px;">array anywhere on the grid, but the goal is to fill up the grid to get it as full as possible. After the player draws </span><span style="color: #444444; line-height: 25.6000003814697px;">the array on the grid, she writes in the number sentence that describes the grid. The second player then rolls </span><span style="color: #444444; line-height: 25.6000003814697px;">the dice, draws the number grid and records their number sentence. The game ends when both players have </span><span style="color: #444444; line-height: 25.6000003814697px;">rolled the dice and cannot put any more arrays on the grid. How close to 100 can you get?</span></span></div>
<div style="background: white;">
<span style="font-family: inherit;"><span style="color: #444444;"><span style="line-height: 25.6000003814697px;">Variation </span></span><span style="color: #444444; line-height: 25.6000003814697px;">Each child can have their own number grid. Play moves forward to see who can get closest to 100. </span></span></div>
<span style="font-family: inherit;"><br /></span>
<br /></div>
Anonymousnoreply@blogger.com0tag:blogger.com,1999:blog-6519665402831500163.post-4873675527850407912014-11-21T10:03:00.001+07:002014-11-21T10:06:36.569+07:00Sound Waves Circular Motion Water Coolness from 9gag<h2 class="badge-item-title" style="background-color: white; font-family: 'Helvetica Neue', Arial, Helvetica, Geneva, sans-serif; font-size: 26px; line-height: 1.3em; margin: 0px 0px 7px; outline: none; padding: 0px; word-wrap: break-word;">
24-Hz sound wave collides with water</h2>
<h2 class="badge-item-title" style="background-color: white; font-family: 'Helvetica Neue', Arial, Helvetica, Geneva, sans-serif; font-size: 26px; line-height: 1.3em; margin: 0px 0px 7px; outline: none; padding: 0px; word-wrap: break-word;">
<a href="http://img-9gag-ftw.9cache.com/photo/anXnde5_460sv_v1.mp4" style="background-color: transparent;" target="_blank">Click this link to the 9gag video - very cool</a></h2>
<br />
Click the link and watch what sound waves do to water<br />
<br />
From the people at <a href="http://9gag.com/gag/anXnde5" target="_blank">9gag</a> and thanks to Annalis in G09 for sharing it with me.<br />
<br />
what is the white rectangle doing there? I don't know - I'll fix that this weekend (:Anonymousnoreply@blogger.com0tag:blogger.com,1999:blog-6519665402831500163.post-69352204796489872202014-11-12T10:15:00.002+07:002014-11-12T10:17:29.473+07:00Landing a Rocket on a Comet. Happening in the next 12 hours...Landing on the moon - done<br />
Landing a robot on Mars - done<br />
<br />
Landing on a comet is a little trickier. Why? What do you think?<br />
<br />
Why are we trying to do it?<br />
<br />
<a href="http://www.nature.com/news/landing-on-a-comet-a-guide-to-rosetta-s-perilous-mission-1.16314" target="_blank">Find out here</a>
<br />
<span style="font-size: x-large;"><b><br /></b></span>
<a href="http://follow%20it%20live%20from%20the%20people%20at%20nasa%20right%20here/" target="_blank"><span style="font-size: x-large;"><b>Follow it live from the people at NASA right HERE</b></span></a><br />
<div>
<br /></div>
Anonymousnoreply@blogger.com0tag:blogger.com,1999:blog-6519665402831500163.post-88690298148367396822014-10-30T14:46:00.000+07:002014-10-30T14:50:14.219+07:00FINALLY! FLYING CARSThey have been talking about these forever. Many other things have come to be that were only crazy future ideas when I was a kid like...<br />
<br />
<b>THIS CRAZY DREAM CAME TRUE</b><br />
Imagine if you could see the person you were calling on the phone and have a face to face conversation no matter where you were in the world. Hello Skype and some similar type face to face communication technology.<br />
<br />
<b>WE ARE STILL WAITING FOR:</b><br />
We are still waiting for time travel (Alina make it happen!) but I heard the other day that the conjecture is travel into the past is impossible but other dimensions... why not?<br />
<br />
Teleportation is being worked on by the Entanglement Generation, I kid you not.<br />
<br />
<b>RECENT HAPPENING</b><br />
What has happened as far as dreams beginning to come true and THE FUTURE IS NOW type of stuff?<br />
<br />
<b><span style="font-size: large;">THE FLYING CAR</span></b> - YAY and, <i>quite frankly</i>, about time.<br />
<br />
<a href="http://www.theguardian.com/technology/video/2014/oct/29/flying-car-prototype-unveiled-vienna-technology-show-video" target="_blank">Read about it here in The Guardian</a> and <b>WATCH THE VIDEO TOO</b><br />
<br />
<br />
<img alt="AeroMobil flying car prototype 3 is ready 8" class="attachment-medium" src="http://wordlesstech.com/wp-content/uploads/2014/10/AeroMobil-flying-car-prototype-3-is-ready-8-310x280.jpg" height="280" width="310" /><br />
<span id="docs-internal-guid-f9c50525-5fe7-4312-519b-072ee6912f78"><span style="font-size: xx-small;"><span style="font-family: Arial; vertical-align: baseline; white-space: pre-wrap;"> "AeroMobil flying car prototype 3 is ready 8 | wordlessTech." 2014. 30 Oct. 2014 <</span><a href="http://wordlesstech.com/2014/10/10/aeromobil-flying-car/aeromobil-flying-car-prototype-3-is-ready-8/" style="text-decoration: none;"><span style="color: #1155cc; font-family: Arial; text-decoration: underline; vertical-align: baseline; white-space: pre-wrap;">http://wordlesstech.com/2014/10/10/aeromobil-flying-car/aeromobil-flying-car-prototype-3-is-ready-8/</span></a><span style="font-family: Arial; vertical-align: baseline; white-space: pre-wrap;">></span></span></span>Anonymousnoreply@blogger.com0tag:blogger.com,1999:blog-6519665402831500163.post-91144878574661987412014-10-17T07:48:00.001+07:002014-10-17T08:20:02.567+07:00Your Life on Earth - cool interactive from the BBC<h1 class="primary-heading" role="heading" style="background-color: white; color: #333333; font-family: curiousSans-Bold, Arial, sans-serif; font-size: 5.6em; font-weight: 400; line-height: 1em; margin: 0.25em 0px 0px; position: relative;">
Your life on earth</h1>
<br />
Enter your details and this cool interactive will show you some of the things that have happened in your life time.<br />
<br />
Enjoy!<br />
<br />
<a href="http://www.bbc.com/earth/story/20141016-your-life-on-earth" target="_blank">BBC Earth Story Right Here</a><br />
<br />
and while I am here this is pretty cool too:<br />
<a href="http://www.ined.fr/en/everything_about_population/population-games/world-population-me/" target="_blank">World Population and Me</a><br />
<br />Anonymousnoreply@blogger.com0tag:blogger.com,1999:blog-6519665402831500163.post-27707011863961475642014-10-14T17:38:00.001+07:002014-10-14T17:38:47.186+07:00From The Good People at the Guardian Data BlogData data data - it's the information age your data is being harvested right now. Somewhere someone is using technology to record that you are reading this blog post. If they can they will also record any metadata they can too. <div>
<br /></div>
<div>
You work with data too and it's important to know what all those terms mean - download speed, bits, bytes, Mbps and MBps. </div>
<div>
<br /></div>
<div>
Have you downloaded or uploaded in different countries? Check out this cool visualisation of various speeds and quality of the internet - you can change the countries...</div>
<div>
<br /></div>
<div>
Have fun!</div>
<div>
<br /></div>
<div>
<span id="docs-internal-guid-e5c669d8-0e38-e77f-7815-7c5e6753195b"><span style="color: #1155cc; font-family: Arial; font-size: 15px; text-decoration: underline; vertical-align: baseline; white-space: pre-wrap;"><a href="http://www.theguardian.com/news/datablog/interactive/2013/dec/15/compare-internet-speed-worldwide" style="text-decoration: none;">Download deathmatch: compare internet speed worldwide</a></span></span></div>
<table cellpadding="0" cellspacing="0" class="tr-caption-container" style="float: left; margin-right: 1em; text-align: left;"><tbody>
<tr><td style="text-align: center;"><a href="http://1.bp.blogspot.com/--SEVcy5iBjw/VDz81A1aBYI/AAAAAAAAAcA/rM3xTtYrLBI/s1600/download%2Bdeath%2Bmatch.png" imageanchor="1" style="clear: left; margin-bottom: 1em; margin-left: auto; margin-right: auto;"><img border="0" src="http://1.bp.blogspot.com/--SEVcy5iBjw/VDz81A1aBYI/AAAAAAAAAcA/rM3xTtYrLBI/s1600/download%2Bdeath%2Bmatch.png" height="143" width="400" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;"><span style="background-color: white; color: #333333; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; font-size: 14.3999996185303px; line-height: 16px; text-align: start;">Cat photo by </span><a href="http://www.flickr.com/photos/kneva/560380352/" style="background: rgb(255, 255, 255); box-sizing: border-box; color: #428bca; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; font-size: 14.3999996185303px; line-height: 16px; text-align: start; text-decoration: none;">Flickr user wenlian chen</a></td></tr>
</tbody></table>
<div>
<span><br /></span></div>
<div>
<span><br /></span></div>
<div>
<span><br /></span></div>
<div>
<span><br /></span></div>
<div>
<span><br /></span></div>
<div>
<span><br /></span></div>
<div>
<span><br /></span></div>
<div>
<span><br /></span></div>
<div>
<span><br /></span></div>
<div>
<span><br /></span></div>
<div>
<span><br /></span></div>
<div>
<span><br /></span></div>
<div>
<span style="font-size: xx-small;">source: <span style="font-family: Arial; vertical-align: baseline; white-space: pre-wrap;"> "Download deathmatch: compare internet speed worldwide ..." 2013. 14 Oct. 2014 <</span><a href="http://www.theguardian.com/news/datablog/interactive/2013/dec/15/compare-internet-speed-worldwide" style="line-height: 1; text-decoration: none;"><span style="color: #1155cc; font-family: Arial; text-decoration: underline; vertical-align: baseline; white-space: pre-wrap;">http://www.theguardian.com/news/datablog/interactive/2013/dec/15/compare-internet-speed-worldwide</span></a><span style="font-family: Arial; vertical-align: baseline; white-space: pre-wrap;">></span></span></div>
<div>
<span style="font-family: Arial; font-size: 13px; vertical-align: baseline; white-space: pre-wrap;"><br /></span></div>
<div>
<br /></div>
<div>
<br /></div>
Anonymousnoreply@blogger.com0