Activity
Lawrence Hall of Science

The Math Page: Topics in Pre Calculus: The Slope of a Straight Line

For Students 9th - 10th
Here is a site that clearly and thoroughly explains the slope of a line. There are example problems solved, problems for the student to attempt, and answers to the student problems. Point this site out to students who have been absent or...
Activity
Varsity Tutors

Varsity Tutors: Hotmath: Slope of a Line

For Students 7th - 9th Standards
Twenty-two problems present a practice finding the slope of a line. The solutions are only available with a paid subscription.