Ellis, Julie

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ellisjulie

Currencies of the world

how money works
2011
An introduction to money that discusses the currency used in different countries and explains how it works.

Pythagoras and the ratios

a math adventure
2010
Introduces the Pythagorean theorem and ratios through a story in which Pythagoras comes up with a solution to tune his cousins' instruments so they can perform in a music contest.

What's your angle, Pythagoras?

a math adventure
2004
In ancient Greece, young Pythagoras discovers a special number pattern (the Pythagorean theorem) and uses it to solve problems involving right triangles.

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