I'm looking for ideas for lessons for a 2.5-year-old who will be 3 when her big sister starts kindergarten. (and thus will be gone for the day at school) She's got her colors down and she loves the ABC song. She is read aloud to many times a day. I'm looking for some hands-on, fun lessons for her to learn things like shapes, alphabet, and numbers. I slip in information on those topics while we play with shapes or alphabet blocks, etc. but would like something structured that we can repeat. Thanks!