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I teach a cross-curricular art and outer space program for first graders and they loved this book. I try to incorporate literacy components with all of my projects, so we read Jack Blasts Off together and then made our own tissue paper collage rocket ship. We then talked about the constellation at the back of the book and created our own imaginary constellations using scratch art.
Based on reviews I bought several of the "Jack" books. Should have read more. If the intent is to encourage inappropriate behavior in young people these books are the best way to do that. Jack is selfish, self absorbed, and a mean spirited disobediant brat. I tossed them all out.
We have both of these new Jack books and love them both. Easy reader with wacky storyline that reminds you a bit of Elephant and Piggie. Great to read out loud. Both my 3 and 6 year old loved this book.