Hi Amy!
That looks like a super cute book! Thanks for the review! I just saw this book and another by same author listed in Library & Ed's email newsletter. They sell to homeschoolers (and schools, churches, etc.) at wholesale prices. They have this one listed for under $5! :) Here's their website, but you have to sign up before you can see their online catalog. I've purchased all kinds of things from them!
http://www.libraryanded.com/
The bottom line is; We try not to insist on parent-led learning or gravitate toward child-led learning. We try instead to focus on God-led learning and ask for His input and perspective on every aspect of our home school. That way, when others fuss about what Dan and I are doing and make me second guess our decisions -- I can go back to our decision process and find God's fingerprints, reminding me that this is His way.