Your device is currently offline. You can view downloaded files in My Downloads.

Lesson Plan

3. Using substituting and evaluating in real world problems (A)

teaches Common Core State Standards 6.AF.4
teaches Common Core State Standards MAFS.6.EE.2.5
teaches Common Core State Standards CCSS.Math.Content.6.EE.B.5
teaches Common Core State Standards CCSS.Math.Practice.MP1
Quick assign

You have saved this lesson!

Here's where you can access your saved items.


Card of

or to view additional materials

You'll gain access to interventions, extensions, task implementation guides, and more for this lesson.

Lesson objective: Apply understanding of substituting values in for variables and evaluting an inequality in order to solve real-world problems.

This lesson provides an opportunity for students to apply their knowledge and understanding of substituting values for variables and evaluating an inequality to a real-life situation. Students are asked to help Mr. Lee decide how much pizza, juice and cookies he should get for a class party and stay within a budget.  

Key Concept students will use: 

  • The solution of an equation is the set of values that makes the equation true.

Skills students will use:

  • Evaluating values in an equation to determine if the set of values makes the equation true 
  • Identifying equivalent expressions (Grade 6, Unit 8)
  • Appling properties of operations to algebraic expressions just as they did to numerical expressions (Grade 6, Unit 8)

Students engage in Mathematical Practice 1 (Make sense of problems and persevere in solving them) as they determine the amount of pizza, juice and cookies Mr. Lee can buy using substitution and evaluating equations. 

Key vocabulary: 

  • equation
  • evaluate 
  • expression
  • solution
  • substitute
  • value


Related content

Appears in

Understanding, writing, and solving equations and inequalities

Provide feedback