By the way, I only recently started wondering why dominoes aren’t used for teaching kids math. In my opinion, it’s actually a pretty convenient method, and at the same time you could use the game’s own rules to help a child better understand how numbers and counting work. The dominoes online version is probably more for adults though, because I think online games would be a bit difficult for a kid to process. Other than that, not a bad way to make math lessons more interesting.