Expressions and Equations

Instructional Time: 30 days

Big Ideas:

  • Apply properties of operations to add, subtract, factor, and expand linear expressions with rational coefficients
  • Understand that expressions can be written in different forms to shed light on the problem
  • Solve real-life mathematical problems with positive and negative rational numbers
  • Assess the reasonableness of an answer using mental computation and estimation strategies
  • Use variables to represent quantities in real-world or mathematical problems and construct simple equations and inequalities to solve problems

7.3.0: Review Notes

  • Variables
  • Numerical expressions
  • Expressions with variables
  • Equivalent expressions
  • Expanded form and Standard form of expressions

7.3.1: Expressions

  • Use Properties of operations to generate equivalent expressions (7.EE.A)
  • Using variables to represent quantities

7.3.2: Equations

  • Using cups and counters to model equations
  • Representing situation with equations
  • Multi-step equations

7.3.3: Inequalities

  • Using inequalities to write mathematical statements about a given situation
  • Solving one-step inequalities