Reflection: Developing a Conceptual Understanding Inequalities: True or False? - Section 1: Introduction

This is one of my favorite inequality activities. I really like how students are asked to kind of play around with an inequality that is true and check and see if it remains true after they do the same operation to both sides. Too often we tell students how things are in math, rather than letting them figure it out for themselves.  I find this task to be simple but powerful and it does a good job of highlighting the differences of how we can manipulate equations versus inequalities.

Students uncover the rule
Developing a Conceptual Understanding: Students uncover the rule

Inequalities: True or False?

Unit 1: Introduction to Algebra: Focus on Problem Solving
Lesson 13 of 14

Big Idea: Is 4 always less than 6? Students explore what happens when they perform the same operation on both sides of an inequality.

Print Lesson
1 teacher likes this lesson
Standards:
Subject(s):
60 minutes

Amanda Hathaway

Similar Lessons

Inequalities: The Next Generation
12th Grade Math » Polynomial and Rational Functions
Big Idea: Does the zero product property work for inequalities?
Favorites(2)
Resources(19)
Troy, MI
Environment: Suburban

Addition and Subtraction One Step Equations
Algebra I » Linear Equations
Big Idea: Students will formalize their understanding of the algebraic properties of equality by solving equations using addition and subtraction.
Favorites(78)
Resources(19)
Washington, DC
Environment: Urban

Non-Linear Systems of Equations
12th Grade Math » Conic Sections
Big Idea: Students model their solutions to non-linear systems in multiple ways.
Favorites(1)
Resources(17)
Phoenix, AZ
Environment: Urban