PBS
Pbs Learning Media: Inventing Negative Numbers
In this Cyberchase video segment, the CyberSquad locates the Cyberchase Council by using negative numbers.
Other
Cyber Sleuth Kids: Number Line Worksheets
Using a number line has just gotten a little easier for teachers and students in this site from CyberSleuth that contains an assortment of printable number line worksheets. Here you will find blank number lines, number lines with...
PBS
Pbs Learning Media: Cyberchase: Competing for the Northern Hemisphere Games
In this short Cyberchase video, students learn about positive and negative numbers as Harry tries to score a total of 50 points in various events to qualify for the Northern Hemisphere games in New Orleans. [3:24]
Lawrence Hall of Science
The Math Page: Skill in Algebra: Signed Numbers
This resource explains positive and negative numbers. There are example problems solved, problems for the student to attempt, and answers to the student problems.