I like the lesson plans based on the fact that a new concept is introduced but each lesson incorporates the old concepts as well. In the real world they will have to be able to recognize math in all its forms and by having lessons with mixed practice concepts they will accomplish this. Very much on a Forth grade level as well.
Amazing series. I will buy the series 7/6 for next year for sure !!!! There is a lot of repetition if that is what your child needs. Mine learned a lot and things really sunk in. There are some wrong answers in the parent answer book so just keep watch on that. I will use this again when my 4 year old is ready to do this concept of math as well.