Cindy Neuschwander is an elementary school teacher who loves teaching math. and was inspired to write the Sir Cumference series while visiting medieval castles in England.
This latest series installment uses stories involving a knight
named Sir Cumference as jumping-off points to explore mathematical
concepts tackles rounding. Edmund Rounds and his son, Rounds 2, are
responsible for keeping an inventory of items at Sir Cumference's
castle. When Rounds 2 hands over his latest counts for inspection,
Edmund notices that the number of bread loaves and butter pots has
not been totaled. Rounds 2 admits that adding is the difficult
part. As they total the items together, he finds that it is much
easier to calculate numbers in groups of 10 (10, 20, 30, etc.). His
father tells him that for some items, such as the number of bees in
the hives, it's acceptable to come up with an approximate number.
To thank his father for his assistance, Rounds 2 sets off to count
the bedding of some travelers passing by but discovers that the men
are enemies intent on attacking the castle. As Sir Cumference
prepares for battle, he asks Rounds 2 to retrieve the bow and arrow
counts. While these items have been counted, they have not yet been
totaled, and Rounds 2 is left to complete the calculations himself.
By rounding up or down to the nearest 10, Rounds quickly completes
the task in what soon becomes known around the castle as the Rounds
2 Method. VERDICT Complete with the illustration style and subtle
puns expected of the series, this title will be enjoyed by fans of
the previous books.
-School Library Journal