This unit consists 8th grade math lessons (can also be used for 9th grade integrated math 1 course) in a 2 week unit plan on solving systems of linear equations and inequalities that are provided or modeled by word problems. The unit covers solving methods of systems of equations (substitution, elimination, graphing) then modeling systems of linear equations described in word problems in the first week. Then the second week consists of a real world modeling project for the students (partners or groups), a quiz day, then covering solving inequalities by graphing and modeling inequalities in word problems as well. The unit includes fun activities for the students to engage in learning and have fun practicing solving systems.
Solving Systems of Linear Equations and Inequalities Unit Plan
Grade Level Grades 6-8
Resource Type Lesson Plan
Common Core State Standards
Solve word problems leading to equations of the form 𝑝𝑥 + 𝑞 = 𝑟 and 𝑝(𝑥 + 𝑞) = 𝑟, where 𝑝, 𝑞, and 𝑟 are specific rational numbers. Solve equations of these forms fluently. Compare an algebraic solution to an arithmetic solution, identifying the sequence of the operations used in each approach.
Understand solving an equation or inequality as a process of answering a question: which values from a specified set, if any, make the equation or inequality true? Use substitution to determine whether a given number in a specified set makes an equation or inequality true.