Ohio Resource Center

 Geometry

 Enlarge Sir Cumference and the Great Knight of AnglelandAuthor: Cindy NeuschwanderIllustrator: Wayne GeehanPublisher: Charlesbridge PublishingCopyright: 2001ISBN: 1-57091-169-XNumber of Pages: 32Ohio Standards Alignment: Grades 3–6This 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 BookHighlights and InsightsRelated ORC ResourcesOhio 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 in-depth 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 What's Your Angle?ORC# 276Resource InformationResource Type: LessonsDiscipline: MathematicsGrades: Grade 4Professional 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....MORE...Fit By Design or Design To Fit: Mechanical Drafter DesignerORC# 1282Resource InformationResource Type: LessonsDiscipline: MathematicsGrades: Grades 8–12Professional 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....MORE...Paper Pool : Analyzing Numeric and Geometric PatternsORC# 394Resource InformationResource Type: LessonsDiscipline: MathematicsGrades: Grade 8Professional Commentary: Paper Pool is played with an imaginary ball being hit from the lower left-hand 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....MORE...Pool Table GeometryORC# 9736Resource InformationResource Type: Content Supports -- Activities and rich problemsDiscipline: MathematicsGrades: Grades 4–7Professional 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....MORE...What's My Angle?: Math Challenge #10ORC# 2382Resource InformationResource Type: Content Supports -- Reference materialsDiscipline: MathematicsGrades: Grades 3–5Professional Commentary: Spread out your fingers and look at your hand. Do people with big hands have larger angles between their fingers?...MORE...
 Ohio Standards Measurement StandardBenchmarks (5-7)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 (3-4)D. Identify and draw right, obtuse, acute and straight angles. Benchmarks (5-7)D. Identify, describe and classify types of line pairs, angles, two-dimensional figures and three-dimensional 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.