Unit 4

Section A: Inequalities

• Lesson 1: Writing and Graphing Inequalities

  Let’s write inequalities.

  • Lesson Activities
  • Practice Problems

• Lesson 2: Solutions of Inequalities

  Let’s think about the solutions to inequalities.

  • Lesson Activities
  • Practice Problems

• Lesson 3: Interpreting Inequalities

  Let’s examine what inequalities can tell us.

  • Lesson Activities
  • Practice Problems

• Lesson 4: Finding Solutions to Inequalities in Context

  Let’s solve more complicated inequalities.

  • Lesson Activities
  • Practice Problems

• Lesson 5: Efficiently Solving Inequalities

  Let’s solve more complicated inequalities.

  • Lesson Activities
  • Practice Problems

• Lesson 6: Modeling with Inequalities

  Let’s look at solutions to inequalities.

  • Lesson Activities
  • Practice Problems

Section B: Writing Equivalent Expressions

• Lesson 7: Subtraction in Equivalent Expressions

  Let’s find ways to work with subtraction in expressions.

  • Lesson Activities
  • Practice Problems

• Lesson 8: Expanding and Factoring

  Let’s use the distributive property to write expressions in different ways.

  • Lesson Activities
  • Practice Problems

• Lesson 9: Combining Like Terms (Part 1)

  Let’s see how we can tell that expressions are equivalent.

  • Lesson Activities
  • Practice Problems

• Lesson 10: Combining Like Terms (Part 2)

  Let’s see how to use properties correctly to write equivalent expressions.

  • Lesson Activities
  • Practice Problems

• Lesson 11: Combining Like Terms (Part 3)

  Let’s see how we can combine terms in an expression to write it with less terms.

  • Lesson Activities
  • Practice Problems

Section C: Equations in One Variable

• Lesson 12: Balanced Moves

  Let’s rewrite equations while keeping the same solutions.

  • Lesson Activities
  • Practice Problems

• Lesson 13: More Balanced Moves

  Let’s rewrite some more equations while keeping the same solutions.

  • Lesson Activities
  • Practice Problems

• Lesson 14: Strategic Solving

  Let’s solve linear equations.

  • Lesson Activities
  • Practice Problems

• Lesson 15: All, Some, or No Solutions

  Let’s think about how many solutions an equation can have.

  • Lesson Activities
  • Practice Problems

• Lesson 16: How Many Solutions?

  Let’s solve equations with different numbers of solutions.

  • Lesson Activities
  • Practice Problems

• Lesson 17: When Are They the Same?

  Let’s use equations to think about situations.

  • Lesson Activities
  • Practice Problems

Section D: Let’s Put It to Work

• Optional

  Lesson 18: Applications of Expressions

  • Let’s use expressions to solve problems.

  • Lesson Activities