Archive for the ‘Learning’ Category

When does log(x-3) = log x – log 3?

26 October 2013

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

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Friday math movie: Smart failure for a fast-changing world

4 October 2013

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

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Updated matrix interactive

2 October 2013

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

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Friday math movie: A clever way to estimate enormous numbers

6 September 2013

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

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Review: Dr. Geo

31 July 2013

Dr Geo
Dr Geo is a free download that allows us to construct a wide variety of geometric objects.

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Trig ratios: updated interactive

1 July 2013

Investigate trigonometric ratios
Here’s an interactive graph where you can investigate some important trigonometric identities.

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MathGraph32

30 April 2013

MathGraph32
MathGraph32 is a great free tool for exploring 2D and 3D math concepts.

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Friday math movie: Donald in Mathmagic Land

25 January 2013

Donald in Mathmagic Land
This is a classic late-1950s cartoon where Donald learns where math comes from.

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Counting game and subitizing

22 January 2013

subitizing
Can you count faster than a chimp? Our number sense begins with our ability to count.

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HOTmaths revisited

15 January 2013

HOTmaths logo
HOTmaths is an interesting online math resource. I take another look after a few years.

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