21/9 - 2.1 Substituting into expressions

Objectives:

By the end of this lesson, students will be able to use the correct order of operations in algebraic expressions.

PowerPoint Presentation:

CW: P.23 in LB

Exercise 2.1 in p. 24, 25 in LB

HW: Exercise 2.1  in p.14 in WB = No. 4,5