My 4-year old also has made tremendous progress by playing cards (Go Fish, Uno, War). I agree also with your comment on apps, with only one exception: https://

My 4-year old also has made tremendous progress by playing cards (Go Fish, Uno, War). I agree also with your comment on apps, with only one exception: https://www.playosmo.com/en/ https://www.playosmo.com/en/. The Numbers, Tangram, and Words games have been particularly effective.