Friday, October 29, 2010

Errol's Sesame Street Video

A ratio compares two quantities measured in different units.
Ex. 3:12 three glasses of milk to twelve cookies

A rate compares quantities measured in different units.
Ex. 3/mph three miles per hour


Proportional Reasoning is a relationship that says that two ratios or two rates are equal.
Ex. 3/12 = 6/24



Grover is a doctor fixing an A.

1 comment:

  1. Good job, Errol !
    I watched your video on Nils' post, and you guys were great !
    Your post was well done. You put the examples and definitions !
    Keep it up

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