Activities

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- Download All Files (ZIP)
- Before the Activity Files
- Teacher Notes PDF
Alignment
- Standards Alignment
- Textbook Alignment
Subject Area
- Math: Geometry: Surface Area and Volume
Author

Texas Instruments
Level

6-8
Activity Time

30 Minutes
Device
- TI-73 Explorer™
Other Materials

This is Activity 1 from the EXPLORATIONS Book: Shaping Middle Grades Mathematics: Activities for Geoboard and the TI-73.
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Count Them Up! Using the TI-73 Explorer

Activity Overview

Students will investigate the areas of rectangles and squares by splitting them up into unit squares and/or half-unit squares and combining them.

Before the Activity

See the attached PDF file for detailed instructions for this activity.

Print pages from the attached PDF file for your class

During the Activity

Students will:

Count individual unit squares to find area

Combine equal rows of unit squares to find area

Combine equal columns of unit squares to find area

Combine squares and parts of squares to find area

After the Activity

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