Key to Fractions Books 1-4, plus Answers and Notes

Very motivational for kids burned out on textbooks, these inexpensive, non-intimidating workbooks teach basic math skills in an easy step-by-step approach. The workbooks look fun to do, begging kids to pull to their pencils and get started. These are great for over-the-summer skill review, or particularly if a certain subject (like fractions) gives them trouble. Each set contains several workbooks and an answer key. Covers the subject from 4th to 12th grade concepts.