Product Description: When Sir Cumference drinks a potion which turns him into a dragon, his son Radius searches for the magic number known as pi which will restore him to his former shape.
An adventure in Pi. I picked up this book since I was learning about Pi in a math class and I am really glad that I did. My daughter liked the dragon and I liked that it had math ideas for names of the characters. Some of the other revues questioned the idea of using Pi in such a way, but as a teacher, isn't getting students to learn the material the point? The best way to get students to learn is by making it interesting and enjoyable and I believe this book did just that. I will be getting the rest of the set - for myself just as much as my daughter.
Sir Cumference This is a very clever book, wonderfully illustrated; I enjoyed it. My only concern is that it's written for a level that is too young for this math material. Jr. High and High School kids might get a kick; I'll try it on them, but I probably won't buy the whole series.
Clever with Much Kid Appeal This is great. My nine yr. old niece loved it, and she was able to understand the concept. Clever and good learning approach. Even her little brother was fascinated by the pictures, so I'm sure he will make use of it when he gets older. The artwork is really good, classic in style but with a lot of individuality. I recommend this for a range of ages because kids will grow into the book, and it is a wonderful way to learn.
A wonderful way to remember pi I feel the age range given on the website should not be ages 4-8. This is appropriate for 8 and up. That said, my 5 year old enjoys it as just a fairy tale and I would not attempt any "teaching" to him. He listens as I read it to my older daughters and maybe it will seep in so when he's old enough to begin measuring, he will easily grasp the concepts.
This is a wonderful book - good illustrations and a clever story. The author works the math part in without it being cumbersome. A few times through this book and your child will have a good grasp of pi. At the least, it will be a good memory trigger if he/she needs help in class.
Great Book This is a great book to teach kids about the number pi. This is a book that makes math fun and gets kids interested in learning math.