I have been looking, for a while, for a really cool math workbook that's colorful and fun. So many of the ones I look at get very grayscale after kindergarten. As if 7 year olds do not enjoy multiplying funny dogs or figuring out how many red flags are flying on castle turrets.
This book I found in the free box at our local homeschooling store because the first third of it had been written in. I took it home and ripped out the first third of it, and we've been living it up with colorful illustrations, interesting story problems, and fun little games.
I think the reason it's so fun, and so devoid of those awful death-marches of practice problems, you know rows and rows of black and white text stretching on into the abyss, is because it's meant as a supplement, not a main lessons. It appears to be for school kids to get more practice, during the summer or on the weekends. So, in their brief moments of escape from the avalanche of dreary homework applied by the school, they're also supposed to do more work assigned by their parents? At least this "supplement" is really fun.
Here's an example of one of the pages. You have to measure the length of one side and then figure out the perimeter.
Highly recommended. It comes in different grade levels. We are doing the Grade 3.