This lesson unit is intended to help teachers assess how well students are able to: solve linear equations in one variable with rational number coefficients; collect like terms; expand expressions using the distributive property; and categorize linear equations in one variable as having one, none, or infinitely many solutions. It also aims to encourage discussion on some common misconceptions about algebra.

In this activity, students are given a series of two-sided equations to solve. Multiple answer choices are provided for each equation. 

Students are introduced to the concepts of stress and strain with examples that illustrate the characteristics and importance of these forces in our everyday lives. They explore the factors that affect stress, why engineers need to know about it, and the ways engineers describe the strength of materials. In an associated literacy activity, while learning about the stages of group formation, group dynamics and team member roles, students discover how collective action can alleviate personal feelings of stress and tension.

In this lesson, students transform equations into simpler forms using the distributive property. Students learn that not every linear equation has a solution.

In this lesson, students use a table to find solutions to a given linear equation and plot the solutions on a coordinate plane.

In this lesson, students extend the use of the properties of equality to solve linear equations having rational coefficients.

In this lesson, students rewrite and solve equations that are not obviously linear equations using properties of equality.

For this lesson, students use the National Weather System chart to gauge wind chill, examine the patterns that correlate increasing wind and/or decreasing temperatures, use wind chill numbers to estimate possible wind and temperature factors, and become familiar with this form of interpolation and calculation.

In this lesson, students apply knowledge of geometry to writing and solving linear equations.

In this lesson, students write mathematical statements using symbols to represent numbers. Students know that written statements can be written as more than one correct mathematical sentence.

In this lesson, students know the properties of linear and non-linear expressions in x. Students transcribe and identify expressions as linear or non-linear.