My kid is 2 years 4 months going to playschool. He likes this a lot and very much interested in using board and chalk. He likes to rub it off often after scribbling.
My kiddo just turned two last week and it was time for us to send him to play school. To make him understand words, I bought Mini Alpha board. He is slowly getting to understand words and Mini alpha board is a useful resource. Its easiest way to evaluate ur kids grasping of words. When I give him A, B and T and ask him to form words, he will end up writing bat and tab. It has numbers too. It is extremely useful for kids under the age of 4 and highly recommended.