Activities

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- Before the Activity Files
- Teacher Notes1 PDF
- Teacher Notes2 PDF
- Teacher Notes3 PDF
- Student Activity PDF
Alignment
- Standards Alignment
- Textbook Alignment
Subject Area
- Math: Middle Grades Math: Basic Facts
- Math: Middle Grades Math: Number Sense
- Math: PreAlgebra: Number Sense and Operations
Author

Texas Instruments
Level

6-8
Activity Time

60 Minutes
Device
- TI-30X IIB
- TI-30X IIS
- TI-30Xa
- TI-34 II Explorer Plus™
Other Materials

This is Activity 4 from the EXPLORATIONS Book:
Investigating Mathematics with Calculators in the Middle Grades: Activities for the TI-30Xa SE and TI-34
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Activity Overview

Students use the calculator to compute the value of expressions involving order of operations.

Before the Activity

See the attached PDF file for detailed instructions for this activity

Print the Transparency sheet and pages 25 - 27 from the attached Student PDF file for the class

During the Activity

Distribute the pages to the class.

Follow the activity procedures:

Understand that mathematicians have developed an agreed-upon order of operations

First complete exponentiation, second complete multiplication and division, third complete addition and subtraction, from left to right

Use the calculator to determine the value of different expressions

Find alternate ways to complete each computation (break the expression into parts)

Record the keystroke sequence used for each solution

After the Activity

Students complete the Student Activity pages.

Review student results

As a class, discuss questions that appeared to be more challenging

Re-teach concepts as necessary

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Before the Activity Files

Alignment

Subject Area

Author

Level

Activity Time

Device

Other Materials