I taught public school Kindergarten for 7 years and we didn't follow a "curriculum", there really wasn't "one", there were "Kindergarten" Math books, yes, but to form understanding of concepts, kids this age need experience self directed & also teacher directed experiences with blocks, clocks, building, puzzles, counting, etc.
We mostly followed our state "standards" for Math, check out your state's department of education website, their kindergarten standards should be listed there, I know mine, in Colorado, state many goals for kindergarten Math :) They can be a good guideline, and they are directly related to the First Grade Math goals, and so on.