Reflection: Grappling with Complexity Telling the story of x - Section 2: New Info/Application


Teaching kids to solve equations has always been a challenge. Some students have much more difficulty than others. It's a good idea to have different strategies "under your sleeve" The cover up technique is one of these. It is also based on working backwards. I tell the student to Cover Up the term with the x in it.    

For example:    40x + 10 = 90

"Cover the term 40x with your finger, so the equation looks like"        

□ + 10 = 90      Clearly what's in the box is 80

So, 40x = 80      "Think of a division related to this multiplication"

Students will see that x = 2

The cover up method can be used for equations where x appears once, so when students perform these equations, they will have to simplify first. 

  The Coverup Technique
  Grappling with Complexity: The Coverup Technique
Loading resource...

Telling the story of x

Unit 2: Solving Linear Equations
Lesson 2 of 10

Objective: SWBAT solve two-step equations using inverse operations and partner discussions.

Big Idea: Students learn to solve equations by figuring out what happened to reverse!

  Print Lesson
6 teachers like this lesson
Math, Algebra, Linear and Nonlinear Equations, Solving equations, two, inverse operations, working backwards
  55 minutes
image solving eq
Similar Lessons
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.
Washington, DC
Environment: Urban
Noelani Davis
Mixture Problems
Algebra I » Functions and Modeling
Big Idea: Mixture problems are hard, but there are a lot of places they can fit in an Algebra 1 curriculum, so they're the perfect lens for review as the year comes to a close.
Worcester, MA
Environment: Urban
James Dunseith
Super Practice with Angles and Algebra - Feedback Session
8th Grade Math » Lines, Angles, and Algebraic Reasoning
Big Idea: Students can better understand a topic when they compare strategies and learn from each other's ideas.
New York, NY
Environment: Urban
Shaun Errichiello
Something went wrong. See details for more info
Nothing to upload