Resources
STANDARDIZED TEST MATERIALS
Use the information put out by the actual test publishers to find the most realistic examples of questions:
SAT: Use Khan Academy’s SAT page and the Collegeboard’s Bluebook App
The Official ACT Prep Guide by ACT
AP: Use Khan Academy’s page for that specific test, and the Collegeboard’s Course Description
The Official Guide for GMAT Review
The Official Guide for GMAT Quantitative Review
With any test prep guide, even by well-known publishers, be aware that there are very often glaring mistakes - typographical and mathematical!
MATH RESOURCES FOR THE HOME
Ask Dr. Math is the place to go when you have a question and can’t find anyone to ask. You can submit new questions, but I recommend first searching the archives for similar questions that have already been answered
Figure This! Math Challenges for Families provides middleschoolers and their families with fun and interesting math problems they can work on together.
Snopes Helps you determine if something you see online is a hoax.
Smithsonian Institution Research Information System (SIRIS) links you to the library and many other interesting collections.
How to Learn Math: For Students (free Online Stanford Class) - This short (six 20-30 min sessions) class has the most up-to-date research on how people best learn math. I highly recommend it to all my students.
Vi Hart is a "mathemusician" who makes interesting and fun videos about math, art, and music.
Khan Academy is a great resource for practice and explanatory videos. They have partnered with the College Board to a prep program for the SAT, and with PIXAR/the Boston Museum of Science to make a program about animation.
Statistics
Books
Algebra to Go and Geometry to Go, both by the Great Source Education Group, are great at-home guides to the topics. They contain succinct and well-indexed explanations for most key topics, including warnings about most commonly made mistakes.
RESOURCES ABOUT ADHD, LEARNING DISABILITIES, & LEARNING STYLES
The VARK website has a short quiz to help you find out what your best learning style is, with recommendations about how to use this knowledge when studying. The first time you take the test, pick your top choices only, to get the clearest score.