These links may be useful (click and go) during the PreAlgebra course:
Khan Academy has a huge library of videos across a multitude of topics:
Review for adding and subtracting positive and negative numbers:
Textbook website:
Helpful student-created math videos:
A quick math dictionary with useful examples:
A great (!) graphing website:
This site is useful for creating bar graphs, line graphs, pie graphs, etc.
A useful site...