Children's literature author Cindy Neuschwander, with illustrator Wayne Geehan has written a math
adventure series that is perfect for Pi Day on March 14. In the books, Sir Cumference, Lady Di of
Ameter and their son Radius solve math problems, geometry puzzles and medieval mysteries. The
name puns are only the beginning of the fun. Children learn about geometry, measurement, counting,
algebra, formulas and math lesson plans in charming medieval fairy tales.
The Sir Cumference books
include:
--Sir Cumference and the First Round Table (A Math Adventure) (1997) Lady Di of Ameter and her son
Radius help Sir Cumference figure out the most user-friendly shape for the table to seat his knights
for their meetings. Great exploratory book for understanding shapes, angles and geometry.
--Sir Cumference and the Dragon of Pi (A Math Adventure) (1999) It's Radius and Lady Di of Ameter to the rescue again to save Sir Cumference who has been eaten by the Dragon of Pi. By visiting the
cooks in the kitchen Radius learns how the Greek term Pi works in geometry and uses it to solve this
math riddle. Use this one for Pi Day!
--Sir Cumference and the Great Knight of Angleland (A Math Adventure) (2001) Radius goes off on a
quest with Sir D'Grees to battle a Pair of Lells (dragons). In clever geometrical exploits, they teach
math lesson plans on angles and measurement.
--Sir Cumference and the Sword in the Cone (A Math Adventure) (2003) Again brave Radius, assisted
by his friend Vertex learn about geometric solids and how to pull out the famous sword Edgecaliber
from the cone. There are solid math lesson plans in this fun adventure.
--Sir Cumference and the Isle of Immeter (A Math Adventure) (2006) Radius must help his cousin Per
face down dragons and learn about geometry in a game called Inners and Edges, so that Per can
rescue her kingdom and become Per of Immeter. Lady Di of Ameter and Sir Cumference lend a hand.
--Sir Cumference and All the Kings Tens (A Math Adventure) (2009) Sir Cumference and his Lady Di of
Ameter discover that when planning a birthday party for the King that using a base 10 counting system (or metric system) is the only way to count this growing crowd of guests.
Here are some free lesson plans based on Cindy Neuschwander books. Teacher
Vision has free printable Sir Cumference math lesson plans for Pi Day. Check Education World for a
complete unit of free printable Pi Day activities, geometry worksheets and math lesson plans from
Sir Cumference geometry books. Lesson Planet has many free printable geometry worksheets
that are specific to Sir Cumference and the Dragon of Pi for Pi Day.
Here's a site with free printable Sir Cumference lesson plans. Math
Geek Mama has created loads of lesson plans on Sir Cumference books. She sells an activity book
for each of the Cindy Neuschwander books and offers free printable geometry worksheets, games,
activities and lesson plans from each.
