My monthly column at Catholic Mom is up and it's on teaching preschool math and science. (You may have to wait a minute for the whole page to load.)
In our homeschool, I do not feel that my children are left behind by putting off formal academics. Little children are so curious that learning comes quite naturally.
In fact, they learn simply through their play.
That doesn't mean to ignore wee ones and their learning. Instead take joy in playing with them and learning beside them. Look for those teachable moments.