
Geometry


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Sir Cumference and the Great Knight of Angleland Author: Cindy Neuschwander Illustrator: Wayne Geehan Publisher: Charlesbridge Publishing Copyright: 2001 ISBN: 157091169X Number of Pages: 32 Ohio Standards Alignment: Grades 3–6
This story is about a young man named Radius, the son of Sir Cumference and Lady Di of Ameter, and the quest he must pursue to become a knight. He uses his family's prized possession, a medallion in the shape of a circle, to help him on his quest. He uses geometry and his knowledge of different kinds of angles to help him in his adventures.
Go to: How to Use This Book Highlights and Insights Related ORC Resources Ohio Standards


How to Use This Book

 This book can be used to introduce the concept of angles and the use of a protractor to upper elementary or middle school students.
 High school students could use the story to help refresh their memory about different types of angles in preparation for a more indepth study of angles and their relationships.
 Teachers could have students make their own circle pendants with degrees marked on them.
 Teachers could design a quest around the school building that would require students to use their pendants.


Highlights and Insights

 Students have difficulty with the names of the different types of angles. This story does a good job of giving students ways to remember how the main character gave each angle its name.
 Younger readers (Grade 3) may need help with the vocabulary in the story.
 The book I purchased had a medallion (protractor) included, which was easily reproduced for my classes to use.


Related ORC Resources

Resource Type: Lessons Discipline: Mathematics Grades: Grade 4 Professional Commentary: Using inductive reasoning, students devise procedures for using a protractor to measure the number of degrees in an angle. Students make estimates of the measurement of various angles created with angle wheels.... Fit By Design or Design To Fit: Mechanical Drafter Designer Resource Type: Lessons Discipline: Mathematics Grades: Grades 8–12 Professional Commentary: Students use a carpenter's square and protractor to measure the sides and angles of several right triangles. To confirm their measurements, they then compute the size of selected sides and angles using (a) the Pythagorean Theorem and (b) trigonometric ratios.... Paper Pool : Analyzing Numeric and Geometric Patterns Resource Type: Lessons Discipline: Mathematics Grades: Grade 8 Professional Commentary: Paper Pool is played with an imaginary ball being hit from the lower lefthand corner of a rectangular grid (pool table) at a 45° angle. A ball hit at this angle will bounce off the side rails of the table at a 45° angle and will traverse the diagonals of the squares in the grid.... Resource Type: Content Supports  Activities and rich problems Discipline: Mathematics Grades: Grades 4–7 Professional Commentary: Have students think of questions to ask about the following situation: Draw on squared paper or build with snap cubes a rectangular pool table. Trace out the path of a ball until it hits a corner.... What's My Angle?: Math Challenge #10 Resource Type: Content Supports  Reference materials Discipline: Mathematics Grades: Grades 3–5 Professional Commentary: Spread out your fingers and look at your hand. Do people with big hands have larger angles between their fingers?...


Ohio Standards

Measurement StandardBenchmarks (57) C. Identify appropriate tools and apply appropriate techniques for measuring angles, perimeter or circumference and area of triangles, quadrilaterals, circles and composite shapes, and surface area and volume of prisms and cylinders. Grade Level Indicators (5) 7. Use benchmark angles (e.g.; 45°, 90°, 120°) to estimate the measure
of angles, and use a tool to measure and draw angles. Geometry and Spatial Sense StandardBenchmarks (34) D. Identify and draw right, obtuse, acute and straight angles. Benchmarks (57) D. Identify, describe and classify types of line pairs, angles, twodimensional figures and threedimensional objects using their properties. Grade Level Indicators (3) 2. Identify and describe the relative size of angles with respect to right angles as follows:
a. Use physical models, like straws, to make different sized angles by opening and closing the sides, not by changing the side lengths.
b. Identify, classify and draw right, acute, obtuse and straight angles. 

