With Sarah's kind permission, here they are!

"Many of these are lesser-known sites that I stumbled upon and didn’t want to forget, so you won’t see a lot of the *famous* math sites here. Consider this to be mostly a list of hidden treasures."

**Sites with Free Video Math Instruction**

Khan Academy: http://www.khanacademy.org/

Patrick – Just Math Tutorials: http://patrickjmt.com/

Brightstorm: http://www.brightstorm.com/math

**Algebra Lessons**

Purple Math: http://www.purplemath.com/modules/index.htm

Cool Math: http://www.coolmath.com (also has sections for younger kids)

The Math Page: http://www.themathpage.com/alg/algebra.htm

SOS Math: http://www.sosmath.com/algebra/algebra.html

Algebasics: http://www.algebasics.com/index.html

Algebra Help: http://www.algebrahelp.com/

Virtual Math Lab College Algebra: http://www.wtamu.edu/academic/anns/mps/math/mathlab/col_algebra/

HippoCampus Algebra: http://www.hippocampus.org/Algebra

Practice Questions/Worksheets

Online pre-calc (alg/trig/geo) random test generator: http://esaab.math.missouri.edu/mucgi-bin/munew.cgi?variable=trig

EdHelper Algebra: http://www.edhelper.com/algebra.htm

**Statistics**

Stat Primer: http://www.sjsu.edu/faculty/gerstman/StatPrimer/

Stat Trek: http://stattrek.com/

HippoCampus Statistics: http://www.hippocampus.org/Statistics

**Sites That Are Mostly Calculus**(many include algebra reviews, too)

University of Houston Math Help Online: http://online.math.uh.edu/

also includes most senior high school/intro university topics including study and practice exams for AP Calc

Aid for Calculus: http://www.jtaylor1142001.net/calcjat/Contents/CalcCont.html

Paul’s Online Math Notes: http://tutorial.math.lamar.edu/

Find the Error: http://www.dougshaw.com/findtheerror/ (Finding errors in solved problems)

HippoCampus Calculus: http://www.hippocampus.org/Calculus

**Cool Online Tools**

Online Fraction Calculator: http://www.helpwithfractions.com/fraction-calculator.html

Prime Factorization Calculator: http://www.mathwarehouse.com/arithmetic/numbers/prime-number/prime-factorization-calculator.php

Equation Calculator: http://www.algebrahelp.com/calculators/equation/

**Miscellany**

Most Common Errors in Undergraduate Mathematics: http://www.math.vanderbilt.edu/~schectex/commerrs/

Interactive Mathematics Miscellany and Puzzles: http://www.cut-the-knot.org/index.shtml

Online biology textbook with summaries and practice questions: http://www.mhhe.com/biosci/genbio/maderbio6e/

Thanks so much for sharing, Sarah!

By the way, Sarah Rainsberger is a self-made expert on University admissions for homeschoolers in Canada. Her website is full of excellent information for homeschoolers who are looking at what is required of them in order to attend a Canadian University.