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A manufactures of range hoods with curved sides wants to know what shape to cut the sheets.

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Posted in Computers & Internet, Mathematics | 2 Comments »

Investigate the meaning of the z-table using this interactive graph.

This is a very creative way to present a lesson – funny, too.

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This interactive allows you to place a mask over the photos of so-called beautiful people, and see how close their face is to the ideal.

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This reminds me of Spirograph images that brought art and geometry together, and always had an element of mystery to them.

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A recent comment from a Twitter colleague got me thinking about the value of graphical solutions of equations.

Posted in Computers & Internet, Learning, Mathematics | 12 Comments »

We don’t deal with failure properly in most educational settings. This talk gives some options for improving that.

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Here’s an applet where you can investigate how matrix operations work.

Posted in Computers & Internet, Learning, Mathematics | 2 Comments »

Imaginary numbers are the result of some mathematical creativity, but have many applications in science and engineering.

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This video shows how to use powers of 10 to make estimates of large numbers.

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