Excellent! Attractive, scalable and comprehensive! Frankly I recommend it! My 6 year old girls love and s' stop over. In addition, the exercises show quite often the very logic of this fact they are rapidly autonomous without even needing to read the instructions, without being off-putting. Extremely progressive, employs all the skills required at the end of the CP. (Representation of numbers, mental arithmetic, addition, subtraction, doubles, halves, supplements to 10, the move to ten, counting 2 2 10 10, the problem solving, geometry, money , lengths, time and duration, mass comparison ... with tips for parents and small equipment at the end of the tender pr handling!