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  • Published: New York : Scholastic, 1999.
  • Year Published: 1999
  • Description: 32 p. : col. ill. ; 24 cm.
  • Language: English
  • Format: Book

ISBN/Standard Number

  • 0613352289 :
  • 0439180317

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Sir Cumference and the dragon of pi : a math adventure

by Neuschwander, Cindy.

There are no copies available and 1 request on 1 copy

Where To Find It

Call number: J 516 Ne

Additional Details

Youth level.

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.

Reviews & Summaries

Community Reviews

good job introducing Pi

In my opinion, this entertaining book does a fairly good job of introducing the pi ratio to younger kids. However, my son's 2nd grade teacher read it to her class and they didn't quite get it. For example, one girl thought the ratio was 7 (instead of 3 1/7), because in the final example the diameter is 7. We then did a hands-on activity from the Exploratorium web site, which is a good way to reinforce the concept.

(I also wonder how many kids will walk away from this series thinking that "pi" has that name because of a pie-eating party, that "diameter" is after Lady Di of Ameter, etc. etc. I'm not saying that the books shouldn't be read, but I wonder if literal minded kids will understand which aspects are made up since the math is all real.)

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