I just posted on my blog about using curriculum with my 3 year old. I know that before I bought the curriculum I was a little apprehensive, so thought some other parents might be interested. I have All About Spelling Level 1 and Right Start Math Level A. I'm curious what other programs you've used with young children!
http://www.memorizingthemoments.com/2014/06/adapting-curriculum-for-toddler.html