Lesson Plan: One-step Inequalities: Addition or Subtraction Mathematics • Sixth Year of Primary School
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.
