The WebMath website is very useful for students having difficulty understanding problems. At first, it seemed to me like a way to help students cheat on their homework, but in reality, could be used as an additional instructional method, as it gives students the steps to completing the problem. Students can choose from a number of categories, such as algebra, fractions, etc., and can plug in the numbers from the problem they are struggling with. The program then generates the correct answer, along with all of the steps necessary to find it. The website is found here: http://www.webmath.com/.