8th Grade

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1

Distance Between Two Points

2

Triangle Angle Sum (Informal)

How do you use informal arguments to establish facts about the angle sum of a triangle?

See how you can slide the three angles of a triangle to form a straight line, showing that they add up to 180 degrees.

Done

3

Irrational Numbers

4

How Can You Compare Two Different Proportional Relationships?

5

How Do You Understand That Patterns of Association Can Be Seen in Bivariate Data?

6

How Do You Construct a Two-Way Table Summarizing Data on Two Categorical Variables Collected From the Same Subjects?

7

How do you use informal arguments to establish facts about the angle-angle criterion for similarity of triangles?

8