Activities

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- Before the Activity Files
- Teacher Notes1 PDF
- Teacher Notes2 PDF
- Student Activity PDF
Alignment
- Standards Alignment
- Textbook Alignment
Subject Area
- Maths: Geometry: Surface Area and Volume
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 14 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 learn to calculate volume of a sphere and a rectangular prism. They explore methods of determining how many volleyballs can be placed in a room.

Before the Activity

Review the formulas for computing attributes of circles, spheres, and rectangular prisms

See the attached PDF file for detailed instructions for this activity

Print pages 109 - 110 from the attached Student PDF file for the class

During the Activity

Distribute the pages to the class.

Follow the activity procedures:

Measure the length, width, and height of the room

Compute the volume of the room

Use the formula to calculate the volume of the volleyball

Divide the volume of the room by the volume of the ball

Determine the number of volleyballs the room can accommodate

Find the total cost incurred in filling the room with balls, given the price of one ball

Discuss other methods that can be used to solve the problem and which method will give an under-estimate and which method will give an over-estimate

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