Everything's Coming Up Fractions with Cuisenaire Rods

The first time I used this book was in a classroom of 6th - 8th grade students. Their math abilities ranged from 1st to 7th grade. Out of 15 students, one found the work difficult. For the rest, this book made learning fractions painless! Each child went at his/her own rate and one child managed to finish the book in two weeks (making me wish I had just as good materials in other topics!)