Best of the Web. Picked by our PhDs

Here’s a great book for middle school girls with practical tips and extra practice problems.

This is another book by Danica McKellar geared toward pre algebra girls.

This is an interesting book for parents and teachers alike, although we have no idea why math would be anyone’s least favorite subject…

A quick game to practice problems, using order of operations. Try the hardest level.

Simple practice problems when you are just starting out. This game
practices JUST the *order* operations are
performed, not the operations themselves.

Here’s an awesome game of strategy using factors. Just try to beat the computer!

This is a two-player game to practice finding factors of numbers.

Here’s a nice activity to visually find the factors of a number.

This site has a four-day lesson plan to work with factors, products, and prime numbers.

This prime factorization tool will factorize even the biggest numbers. Great for checking your answers!

Some fun trivia about prime numbers.

This is a fabulous tool to practice factor trees, LCM and GFC!

This site has a fun Jeopardy game to play with one or two players. It’s good for practice with factorizing and finding multiples.

Here is a cute, quick game to practice LCM and GCF.

Great practice word problems involving LCM and GCF.

This site shows a good example of using number line to add fractions.

This site shows a nice illustration of using plusses and minuses to solve addition problems.

Here’s an application to explore addition of integers using battery voltage.

This is a fun 2-player game that can use all operations with integers. It’s similar to the old-favorite Connect Four.

This is an interactive view from the Milky Way to a leaf as seen through powers of 10.

These are flash cards for practicing square roots.

Here are two quick games for practicing scientific notation.

This is a nice little tool for students practicing more advanced powers and roots.