Students will learn to solve money problems with two or more operations.
Teaching Objectives:
- Students will learn to define an expression.
- Students will learn to write expressions to solve problems.
- Students will write expressions and solve problems with two or more operations.
Suggested Grade Level
6th – 9th Grade
Lesson Excerpt:
What is an expression?
A numerical expression is a mathematical phrase that has numbers and operations in it. A variable expression is a mathematical phrase that has numbers, operations and variables in it.
You may be wondering what an expression has to do with money; well many times there are problems that need to be solved regarding money. When this happens, we need to think about how to express the problem in a mathematical way so that we can solve it. This is where using an expression comes in.
Let’s look at an expression that has one operation in it.
Example:
Kyle is shopping for a present for his mother. He has decided to buy her four new coffee cups. After searching all day, he finally selects a set that he likes. Unfortunately, he has to buy each cup separately. One cup is $5.00. If Kyle purchases all four cups, how much will he spend?
