Handout
Social Studies Help Center

Social Studies Help Center: Free Enterprise at Work: The Circular Flow Model

For Students 9th - 10th
This site shows the flow of payments for the factors of production and for finished products by using the Circular Flow Model.
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Khan Academy

Khan Academy: Difference of Squares Intro

For Students 9th - 10th
Factor quadratic expressions into the special products of the general form (x+a)(x-a).

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