Everything you will learn in Kindergarten...

Language Arts TEKS

Math TEKS

Science TEKS

Social Studies TEKS

Here are some good sites for kids:

scholastic.com

kidsites.com

http://www.manatee.k12.fl.us/sites/elementary/palmasola/SRW.htm

www.starfall.com

http://www.funbrain.com/   (there is a section of games for kids under 6)