Education Technology

Activities

• Subject Area

• Math: Middle Grades Math: Algebraic Thinking
• Math: Middle Grades Math: Number Sense

6-8

45 Minutes

• Device
• TI-73 Explorer™
• TI-Navigator™
• Software

LearningCheck™ Creator
TI Connect™

2.1

The Right Combination

Activity Overview

In this activity, students use the order of operations and number properties to create a unique expression from a set of numbers that must equal another number. Then they will place parenthesis in a number statement to make it true. Students will also indentify properties commonly used evaluating expressions.

Key Steps

• In this activity, students use the order of operations and number properties to create a unique expression from a set of numbers that must equal a given number. They will also determine how to correct an expression that does not equal that number.

• Students also explore the placement of parentheses to ensure number sentences evaluate correctly. Finally, students use the Commutative or Associative Properties of Addition and Multiplication to complete equations.