Numerical and Algebraic Expressions


This chapter exposes the students to the basics of algebra to prepare them for future algebra courses. The chapter begins with an introduction to variables and expressions followed by the discussion and application of key properties used to simplify and factor expressions. The chapter ends with a presentation of properties of exponents and scientific notation.

What you can expect to learn

After completing Chapter 3 you should be able to

  1. Write expressions to model mathematical and real-world situations.
  2. Evaluate numerical and algebraic expressions.
  3. Write equivalent expressions using the properties of addition and multiplication.
  4. Apply the properties of addition and multiplication to compute mentally.
  5. Evaluate the idea that mathematical models are objective.
Activity List