One of the most valuable references I use regularly is a list of the California kindergarten standards in language arts, math, science, and social studies. They are available online, but they span several pages. I copied and pasted the standards into a much condensed form and added a column to serve as a checklist. I printed them each subject on a different color of paper and slipped them into page protectors. I will be adding the first grade standards soon, and eventually I hope to do all grade levels. Here they are for your use. Enjoy!
Kindergarten Language Arts
Kindergarten Social Studies