Lines and Linear Equations Formative Assessment Lesson Day 2 of 2

Objective

SWBAT interpret speed as the slope of a linear graph and translate between the equation of a line and its graphical representation.

Big Idea

Challenge students to understand multiple representations of linear equations by using a very visual demonstration of slope and y-intercept.

Lesson Author

Christa Lemily

Bowling Green, KY

Grade Level

Eighth grade

Subjects

Math

slope (Linear Equations)

Algebra

Standards

8.EE.B.5

Graph proportional relationships, interpreting the unit rate as the slope of the graph. Compare two different proportional relationships represented in different ways. For example, compare a distance-time graph to a distance-time equation to determine which of two moving objects has greater speed.

8.F.B.4

Construct a function to model a linear relationship between two quantities. Determine the rate of change and initial value of the function from a description of a relationship or from two (x, y) values, including reading these from a table or from a graph. Interpret the rate of change and initial value of a linear function in terms of the situation it models, and in terms of its graph or a table of values.

MP2

Reason abstractly and quantitatively.

MP4

Model with mathematics.

MP7

Look for and make use of structure.