This is the second one I've bought. The first one we bought for home use, and after I shared it with my daughter's preschool level Arabic teacher, she wanted one for the classroom. It's great for jumping from square to square, calling out the letters - in the process of learning them for the first time. It's fun to take the letters out as a puzzle and put them back again. Also fun to interlock them in various ways - not necessarily always in order. I think that my daughter's teacher is also tracing the letter shapes with them. The only complaint I've heard about the product is that if you don't keep track of the dots, some might be easily lost, and then it looks incomplete. So just keep track of all the pieces - put it back together in the case each time, and it should be fine. This was a fun way for my son to learn the letters 2 years ago as a 6 year old. My daughter's 3 now and loves it.