Margo Richardson
Best Practices
July 1997

Slope of a Line Using Geometer's Sketchpad

Topic:

Review of slope using the slope-intercept form, and parallel and perpendicular lines.

Objective:

The objectives today are to use the geometric sketchpad to review the topics of slopes, equations of a line and the slope-intercept form and be able to communicate the results on paper.

Level:

8th Grade Algebra I

Technology Used:

This project uses Geometer's Sketchpad on the computer.

Prior Knowledge:

Slope of a line, slope-intercept form, equation of a line, parallel and perpendiculal lines.

Materials:

You need Geometer's Sketchpad open with a paper and pencil.

Link to Standards:

This project is linked to these Standards:

Standard 1: Mathematics and Problem Solving -- 1-1,1-3,1-4,1-6

Standard 2: Mathematics as Communications -- 2-1,2-2,2-4,2-5

Standard 3: Mathematics as Reasoning -- 3-1,3-2,3-3,3-4

Standard 5: Number and Number Relations -- 5-1,5-4,5-5

Standard 7: Computation and Estimation -- 7-1,7-5, 7-6

Standard 8: Patterns and Functions -- 8-1,8-2,8-3,8-4

Standard 9: Algebra -- 9-2,9-3,9-6 < br>

Standard 12: Geometry -- 12-1,12-4,12-5

Standard 13: Measurement -- 13-1, 13-2, 13-3, 13-7

Lesson 1

If you have any comments or questions, contact

Margo Richardson