This video includes sample exercises and stepbystep explanations of circles, logarithms, and exponents for the California Standards Test.
Khan Academy

A helpful scientific calculator that runs in your web browser window.
Holt Online Learning

Excellent site showing examples of algebra, trig, calculus, differential equations, and linear algebra.
Paul's Online Math Notes


This website lists all of the rules for exponents along with some examples. It also has the rules for logarithms.
Rules for Exponents

Quiz on Polynomials, Factoring, and Exponential Expressions
SOS Math

Notes and practice problems on negative and fractional exponents
Viginia Tech Math

The perfect study site for high school, college students and adult learners. Get help to do your homework, refresh your memory, prepare for a test, ....
SOS math
