Big Ideas:
A solution is a value that makes an equation true.
Representational drawings can be used to show equality.
This lesson builds on solving for variables using solutions sets by asking students to solve for variables without being given a solution set. In this task, students write and solve single-step multiplication equations that represent a real-life situation and include a variable. Students justify their solutions using substitution in algebraic equations and also draw visual models that represent the equation. This concept builds toward solving for variables in inequalities and two-step equations.
Vocabulary: variable, algebraic equation, substitute, solution
Special Materials:
none
Lesson plan