Lesson Plan: One-step Inequalities: Addition or Subtraction | Nagwa Lesson Plan: One-step Inequalities: Addition or Subtraction | Nagwa

# Lesson Plan: One-step Inequalities: Addition or Subtraction Mathematics • 6th Grade

This lesson plan includes the objectives, prerequisites, and exclusions of the lesson teaching students how to write and solve one-step linear inequalities by addition or subtraction.

#### Objectives

Students will be able to

• deduce that if the same number is added to or subtracted from each side of an inequality, the inequality remains true, which is the addition and subtraction properties of inequalities,
• deduce that if the same number is added to or subtracted from each side of an inequality, the direction of the inequality does not change,
• know that solving one-step inequalities means finding the unknown value to make the statement true,
• use these rules to solve one-step inequalities.

#### Prerequisites

Students should already be familiar with

• the properties of operations in and ,
• the meaning of variable and constant.

#### Exclusions

Students will not cover

• inequalities with more than one unknown,
• solving inequalities of the second or third degree.