What is an arithmagon?
Clearly, the numbers in the rectangles are the sum of the numbers in the adjacent circles. Of course, there is no need to use addition and no need to use triangular arithmagons!
A revised and completely updated post can be found here.
Busy in a computer room this morning one of my year 9 (UK age 13-14) students informed me that WolframAlpha is 2 today!
I show all my students WolframAlpha in class and sometimes use it in class to check a result. I have been pleased to see students using it themselves.
See the WolframAlpha page and subpages for further details on WolframAlpha.
An excellent new feature for WordPress users was announced recently. It is now possible to embed documents created with Google Docs into a WordPress blog.
(For more on Google Docs – see this page)
To try out this new feature – here is a form I created to help students think about the personal learning and thinking skills they are using in Mathematics.
Obviously this was not originally designed for a narrow column such as this but the whole process is very easy – an outstanding addition to WordPress. Thank you Happiness Engineers!