Math Lesson Using How may Snails? by Paul Giganti

I read a counting book recently called How Many Snails? by Paul Giganti and I wondered: What if students could write their own How Many book? This is a great book and there are some great lessons to teach from it, but why just read the book? Why not create your own page for the book? I decided to see how well it would work, and I think it would be pretty easy.

Read the book.
Have the students make charts/Venn Diagrams detailing one page in the book.
Have the students draw their own page(s).
Have the students make a chart/Venn diagram on the BACK of their page.
Make all pages into a classroom book!

Should I add more?