Given a pair of similar figures, including dilations, students will be able to generalize that the lengths of corresponding sides are proportional.

Given a proportional relationship, students will be able to graph a set of data from the relationship and interpret the unit rate as the slope of the line.

Given a set of data, the student will be able to generate a scatterplot, determine whether the data are linear or non-linear, describe an association between the two variables, and use a trend line to make predictions for data with a linear association.

Given information in a geometric context, students will be able to use informal arguments to establish facts about the angle sum and exterior angle of triangles, the angles created when parallel lines are cut by a transversal, and the angle-angle criterion for similarity of triangles.

Learn about differences between multiple representations in 8th grade and in Algebra I, including tables, equations, and graphs.

Rational Number Coefficients

Equations: Combining Like Terms

This resource contain links to video resources that demonstrate strategies for teaching mathematics concepts.