We have been using Math U See in our homeschool for a number of years now. I mainly use this program from kindergarten through fourth grade so that my children get a good foundation in the basics. I have found that this method of learning the four basic functions in math works for everyone:
The website itself describes their mission this way:
"Our goal is to help produce confident problem solvers who enjoy the study of math. The reason we study math is so we can apply what we learn in everyday situations. The students learn their math facts, rules, and formulas, and are able to use this knowledge in real life applications. The study of math is much more than committing a list of facts to memory. It includes memorization, but it also encompasses learning the concepts that are critical to problem solving."
As I said before, I mainly use this up through fourth grade and then switch over to Life of Fred. I have used some of the upper grade books but didn't think they covered enough material for the children I was using them with. If your child struggles with math then continuing on into the upper grades with this program would be a good idea.
There are about 30 lessons in each book and each lesson is comprised of three pages of problems of new material as well as three pages of problems of new and review material. There is also a test booklet with tests for each lesson as well as unit tests and a final test. It is up to you to decide how many of the six pages per lesson that your child needs to do.
Overall I have been pleased with Math U See and how it has worked for my students in the K - 4th grades. If you are interested in more information, they will assign you to a representative from your area who can answer your questions and help you order your books.