Activities

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- Before the Activity Files
- Teacher Notes Appendix PDF
- Teacher Notes PDF
Alignment
- Standards Alignment
- Textbook Alignment
Subject Area
- Math: PreAlgebra: Number Sense and Operations
- Math: Middle Grades Math: Number Sense
Author

Texas Instruments
Level

6-8
Activity Time

60 Minutes
Device
- TI-73 Explorer™
Other Materials

This is Activity 2 from the EXPLORATIONS Book:
Discovering Mathematics with the TI-73: Activities for Grades 5 and 6
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Factors Galore A: Common Factors

Activity Overview

Students practice simplifying fractions in a game format by dividing the numerator and denominator by the greatest common factor.

Before the Activity

See the attached PDF file for detailed instructions for this activity
Print pages 5 - 9 from the attached PDF file for your class

During the Activity

Distribute the pages to the class.

Follow the Activity procedures:

Enter an unsimplified fraction

Predict the grestest common factor of the numerator and denominator

Use the calculator to verify if the prediction is correct

Repeat the guessing and verifying process until the fraction is completely simplified

Understand how the calculator evaluates the predicted value

Repeat the activity with other fractions

After the Activity

Students complete the Student Activity sheet.

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