Ratios

Pythagoras and the Ratios

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Pythagoras and his cousins want to win a music contest, but first they must figure out how to play their instruments in tune, something that's never been done before.

While trying to fix the problem, Pythagoras makes an important discovery--notes that sound pleasant together have a certain mathematical relationship. When Pythagoras applies this ratio to his cousins' pipes and lyres, the result is music to the ears.

Ratio Rumble

The battle is on in this game where you build your own potions! Check your ratios to win this mixture mix-off! Ratio Rumble addresses equivalent ratios, as established by the National Council of Teachers of Mathematics (NCTM).

Ratios (2004)

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--ratios and equivalent ratios
--ratios expressed in fractions or preferably in whole numbers
--ratios of quantities
--calculating and comparing ratios of quantities
--importance of the order of ratio numbers
--ratios in scaled drawings
--equivalence of inches, feet and miles to centimeters, meters and kilometers

Grade Level:

Middle

High

Length:

00:23

Trigonometry Part 1 (2004)

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--similar triangles
--finding an unknown height in a similar triangle
--tangent ratios of varying angles
--hypotenuse, adjacent, and opposite sides
--using a calculator to find the tangent ratio of any angle
--using tangent ratios to find an unknown adjacent or opposite side length

Grade Level:

Middle

High

Length:

00:22