Coordinate Geometry The Equation of a Line

Author

Texas Instruments

Alignment

Standards Alignment

Textbook Alignment

Subject Area

Math: Geometry: Points, Lines and Angles

Level

6-8

Activity Time

60 Minutes

Software

TI Connect™

TI Calculator

TI-84 series

Applications

Cabri™ Jr. for TI-83 Plus and TI-84 Plus

Other Materials

TI-Presenter™

LCD Projector
Two screens

Resource Types

Lessons

Report an Issue

Coordinate Geometry The Equation of a Line

Activity Overview

This activity teaches students the relationship between the slope, y-intercept, and the equation of a line.

Before the Activity

Install the Cabri™: Jr. App on the students' graphing calculators using one of these two methods:

TI-Connect™, a TI Connectivity Cable, and the Unit-to-Unit Link Cable

TI-Navigator™ "send to class" feature

See the attached PDF file for detailed instructions for this activity

Print pages 1 - 13 from the attached PDF file for your class

During the Activity

Distribute the pages to the class.

Follow the Activity procedures:

Plot a point in the first quadrant and display its coordinates

Plot a point on the Y-axis and display its coordinates

Draw a line connecting these two points and display its equation

Display the slope of the line

Drag the point in the first quadrant and observe the change in the equation of the line

Drag the y-intercept along the y-axis and observe the effect on the equation of the line

Make conjectures about the slope and y-intercept

After the Activity

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 PDF

Author

Texas Instruments

Alignment

Standards Alignment

Textbook Alignment

Subject Area

Math: Geometry: Points, Lines and Angles

Level

6-8

Activity Time

60 Minutes

Software

TI Connect™

TI Calculator

TI-84 series

Applications

Cabri™ Jr. for TI-83 Plus and TI-84 Plus

Other Materials

TI-Presenter™

LCD Projector
Two screens

Resource Types

Lessons

Report an Issue

iPad is a trademark of Apple Inc., registered in the U.S. and other countries.
Vernier EasyData,Vernier EasyLink and Vernier EasyTemp are registered trademarks of Vernier Science Education.

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Coordinate Geometry The Equation of a Line

Cabri™ Jr. for TI-83 Plus and TI-84 Plus

Coordinate Geometry The Equation of a Line

Before the Activity Files

Cabri™ Jr. for TI-83 Plus and TI-84 Plus

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