Friday, October 29, 2010

Jocelle's Semame Street Video

RATIO :

Two Term Ratio - compares two quantities measured in the same unit.
Example - White Cookies: Blue Cookies
1:2

Three Term Ratio - compares three quantites measured in the same unit.
Example :
White Cookies: Blue Cookies: Pink Cookies
1:2:3

Part to Part Ratio - compares different parts of the group to the whole group.
Example: White Cookies:Yellow Cookies
1:7

Part to Whole ratio
- compares one part of a group to the whole group. It can be written in a decimal, fraction and percent.
Example: Purple Cookies : Total Cookies 8:21

Rate:

Rate- compares two quantites measured in different units

Unit rate- a rate in which the second term is 1

Unit price - a rate used when shopping

Proportional Reasoning :

Proportional Reasoning - a relationship that says that two ratios and two rates are equal. It can be written in a fraction form.



http://www.youtube.com/user/spmath789#p/u/4/r2vYfx5ff1w

1 comment:

  1. Good job, Jocelle !
    Our video was ... okay :( We could have made it better. Next time we will!
    I really liked your post. You put lots of color and had great examples. Keep it up !

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