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Author

Texas Instruments

Alignment

Standards Alignment

Textbook Alignment

Subject Area

Math: Geometry: Triangles

Level

6-8

Activity Time

60 Minutes

TI Calculator

TI-30 X IIS™ / TI-30Xa

Other Materials

This is Activity 12 from the EXPLORATIONS Book:
Investigating Mathematics with Calculators in the Middle Grades: Activities for the TI-30Xa SE and TI-34

Resource Types

Lessons

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Going Out of Business

Activity Overview

Students use the Pythagorean theorem to compute the diagonals of rectangles.

Before the Activity

Review the concepts of square and square root

Use the attached transparency sheet to review the Pythagorean theorem

See the attached PDF file for detailed instructions for this activity

Print pages 97 - 99 from the attached Student PDF file for the class

During the Activity

Distribute the pages to the class.
Follow the activity procedures:

Examine the length and width of the precut TV openings

Use the Pythagorean theorem to compute the length of the diagonal of each rectangular opening

Match the diagonals of the TV with the measure of the diagonals of the openings

Decide which television fits in which precut TV opening

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

Download Files

Download All Files (ZIP)

Before the Activity Files

Teacher Notes1 PDF Teacher Notes2 PDF Teacher Notes3 PDF Student Activity PDF

Author

Texas Instruments

Alignment

Standards Alignment

Textbook Alignment

Subject Area

Math: Geometry: Triangles

Level

6-8

Activity Time

60 Minutes

TI Calculator

TI-30 X IIS™ / TI-30Xa

Other Materials

This is Activity 12 from the EXPLORATIONS Book:
Investigating Mathematics with Calculators in the Middle Grades: Activities for the TI-30Xa SE and TI-34

Resource Types

Lessons

Report an Issue

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