Watching Your Weight - TI-83

Author

Texas Instruments

Alignment

Standards Alignment

Textbook Alignment

Subject Area

Math: Algebra I: Linear Functions

Math: PreAlgebra: Linear Functions

Level

9-12

Activity Time

60 Minutes

TI Calculator

TI-84 series

Other Materials

Scale
Wooden plank or meter stick
Books
Tape measure

Resource Types

Lessons

Report an Issue

Watching Your Weight - TI-83

Activity Overview

In this activity, students examine how moving a weight up along a board affects the downward force on the board. They explore how children with different weights can be balanced on a seesaw.

Before the Activity

Position the scale and the block far enough apart so that the wooden plank is supported on one end by the scale and the other end by the block

Starting at the edge of the scale, place marks at 10-cm increments on the wooden plank

Set up the calculator for data collection using the procedure described in the attached Appendix PDF file

See the attached PDF file for detailed instructions for this activity

Print pages 23 - 34 from the attached PDF file for your class

During the Activity

Distribute the pages to your class.

Follow the Activity procedures:

Place books at the 0 cm mark on the plank and record the weight

Move the books to the 10 cm mark and record the weight

Continue to move the books away from the scale in 10-cm increments and record weights

Enter the data of distance and weight as a list

Use this data to graph a scatter plot

Visually estimate the trend line and find the line that contains as many points as possible

Determine an equation for a trend line for the data, calculate the slope, and graph the trend line

Alternatively, find a linear regression equation for the data and graph the best fit line

Find the weight of objects placed at different distances from the scale

Find the distance from the scale given the object's weight shown on the scale

After the Activity

Students will complete the Data Collection and Analysis page and answer questions listed on it.

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 Notes Appendix PDF Teacher Notes PDF

Author

Texas Instruments

Alignment

Standards Alignment

Textbook Alignment

Subject Area

Math: Algebra I: Linear Functions

Math: PreAlgebra: Linear Functions

Level

9-12

Activity Time

60 Minutes

TI Calculator

TI-84 series

Other Materials

Scale
Wooden plank or meter stick
Books
Tape measure

Resource Types

Lessons

Report an Issue

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Watching Your Weight - TI-83

Watching Your Weight - TI-83

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