This Powerpoint presentation is a complete lesson teaching what a numerical expressions are, how to evaluate them using order of operations, and how to write them. It consists of over 34 slides, the last 4 of which are 2 different levels of homework handouts and the accompanying answer keys. I have included instructions for most of the slides in the Notes area, so this lesson can be easily taught with little preparation.
This lesson is appropriate for grades 4-6 and could be used at higher levels for review of the concepts. It can easily be divided into two or three days of separate lessons for younger students if necessary. The two handouts for independent practice are of differing levels for differing learner abilities. Decimals as well as whole numbers are used in the examples to help reinforce those skills as are exponents.
These slides can be printed on transparencies for overhead projectors as well as presented in Powerpoint.
Evaluating and Writing Numerical Expressions
by Donna Melton
is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License