I have an older kindergartener (5.5) who is really into academic stuff.
Reading: She's reading well and almost finished with phonics (finishing up OPGTR now). I might start All About Spelling with her, or she might just read aloud to me daily.
Handwriting: Handwriting Without Tears
Math: RightStart B
Science: BFSU (when we feel like it)
History: American history picture books, especially Betsy Maestro
Spanish: Salsa, Jose Luis Orozco songs, picture books, etc.
And of course lots of art and read alouds, our favorites!