Review on Learning Resources Mathlink Activity Assorted by Larry Cothran

Very good adhesion, low weight and beautiful colors. My 3 year old daughter loves being able to create and play with NumberBlocks characters from the series. We can easily see how to create new shapes from the same number of blocks and visualize addition and subtraction. Each color consists of 10 blocks, so you can easily tell if any of them are lost. There are 10 different colors and if you use "pink" instead of "purple" you can make a rainbow and then get black and white. Depending on how you assemble them, your shapes can be solid or "articulated" and twist, allowing them to spin or pop out without too much trouble. My daughter has no problem taking them apart but is learning to put them together. I need to make sure my 1 year old doesn't get them as they are small enough to be a potential hazard if she puts them in her mouth.