Solving Algebraic Expressions

7th GradeMath25 min

Learning Objective

I can write and solve algebraic expressions with one variable.

Lesson Flow

Watch Video

6 min

Algebraic Word Problems

Professor Dave Explains

Guided Notes

5 min

Key concepts students will learn:

  • In algebraic word problems, we assign variables to represent unknown quantities and construct equations to represent the relationships between them.

  • If there are three brothers whose ages are consecutive multiples of three and the sum of their ages is thirty-six, we can represent their ages as X, X + 3, and X + 6.

  • When solving algebraic word problems, the trickier part is constructing the equations from the given information, while solving them is the easier part.

Practice

10 min

3 questions • Multiple choice & Short answer

Exit Ticket

5 min

Carla and David are siblings. Carla is 5 years older than David. If David is x years old, write an expression for Carla's age. If David is 11 years old, how old is Carla?

Teacher Guide

Get the complete package:

  • Answer keys for all questions
  • Differentiation strategies
  • Extension activities
  • Printable student handouts