How do you get from phonics to science to math? Easy.
This morning when we were discussing the EA digraph where ea makes the short E sound (think Ed) we read the phrase "leaven bread." Ben asked what 'leaven' means. So we talked about bread and the 2 ways to leaven it (chemical and biological). This lead to a demonstration of yeast and baking soda. Which lead to a discussion of the life cycle of yeast and how it multiplies.
To demonstrate how yeast multiplies I drew 2 yeast cells, then 4, then 8, then 16, then 32. Ben asked, "What happens next"... so we kept doubling (by adding) until we had millions of yeast cells. Ben was amazed that we could keep doubling into the millions... at one point he stopped and said, "Wait a minute. We're doing MATH." Yup. And THAT is why I love homeschooling.