Friday, October 29, 2010

John's Sesame Street Video Post

Ratio

Two-Term Ratio:
-Compares different parts of a group to each other.
-Compares two quantities measured in the same units.
 Ex. A:B, 4:5, 5 to 4

Three-Term Ratio:
-Compares one part of a group to the whole gruop.
-Compares three quantitie measured in the same units.
Ex. A:B:C, 4:5:6, 6 to 5 to 4

Rates:
-Compares two quantities measured in different units.
 -Unit Rate-a rate in which the second term is one.
 -Unit Price-a unit rate used when shopping.
Ex.1.89L/$549

Proportional Reasoning:
-A relationship that says that two ratio or two rates are equal
Ex. use it to find 15 chickens if 5 costs $0.10
5 / $0.10 = 15 / $x ; x= $0.30 ( multiply by 3)

4 comments:

  1. Great post John, I liked that you have a written part but you should put some color on it. It would also be better if you have a video on it.

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  2. Nice post John. It looks like you explained the terms well. Next time add a little more color to it and add your video. Other than that, great job.

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  3. Great post, John. You explained the terms with great examples. Next time, add your sesame street video and give your post some color. Other than that, good job.

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  4. Good job, John! For a new student you're doing pretty well! I found it really easy to understand, but maybe add some colour to your post.

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