Pre-Algebra I (Illustrative Mathematics - Grade 7)
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Front Matter
1: Scale Drawings
2: Introducing Proportional Relationships
3: Measuring Circles
4: Proportional Relationships and Percentages
5: Rational Number Arithmetic
6: Expressions, Equations, and Inequalities
7: Angles, Triangles, and Prisms
8: Probability and Sampling
9: Putting it All Together
Back Matter
Thumbnail: Animation illustrating Pythagoras' rule for a right-angle triangle, which shows the algebraic relationship between the triangle's hypotenuse, and the other two sides. (CC BY-SA 3.0; AmericanXplorer13 via Wikipedia).