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List Price: $5.99

My 7 year-old, home schooled son loves elevators so much that we made one from a refrigerator box! He loves mechanics of all kinds, but was having difficulty with simple math concepts like addition and subtraction. I bought this book thinking it may have an elevator in it, but was surprised to see that Murphy related subtraction concepts to the story. Needless to say, my son loves this book, and reads it over and over. This book gave me the idea to make an elevator panel out of poster board to use while teaching math. Now, math is fun to learn, as well as fun to teach.