Geometry is a hands-on subject. What better way to explore the concepts of area, perimeter, and volume than actually  measuring  area, perimeter, and volume? With this helpful resource, you will build polygons out of pipe cleaners and flexible drinking straws, explore  Mobius strips  made from index cards, model the  Pythagorean theorem  using cheese crackers, and much more.  Junk Drawer Geometry  proves that you don't need high-tech equipment to comprehend math concepts—just what you can find around the house or in your recycling bin. Each of this book’s 50 creative geometry projects includes a materials list and detailed, step-by-step instructions with illustrations. The projects also include ideas on how to modify the lessons for different age and skill levels, allowing anyone teaching children to use this to excite students. Educators and parents will find this title a handy guide to teach problem-solving skills and applied geometry, all while having a lot of fun. Gr 5 Up-Mercer, an experienced physics teacher, presents simple projects in this accessible volume. The introduction provides a succinct rationale for using hands-on activities to help students master math and science concepts. The volume is divided into three sections, each with 14-18 examples. In "Geometry Tools," students make cereal box calipers, a paper protractor, and yarn and cardboard graph paper. In "Math Labs," students see real-world applications to geometry concepts as they work through projects such as cheese cracker Pythagoras and midsegment toilet paper. In "Fun Geometry Activities," students make their own tessellations and puzzles. Each craft includes a brief description, a list of supplies, an explanation of the math concepts learned, and information on which grade levels the project is for, from elementary to high school. Step-by-step directions are comprehensible and accompanied by useful photos. The titular phrase "Junk drawer geometry" is right on-all materials are inexpensive and easy to gather. ­VERDICT A great addition to STEM collections and makerspaces.-Erica Thorsen, Albemarle High School, VAα(c) Copyright 2011. Library Journals LLC, a wholly owned subsidiary of Media Source, Inc. No redistribution permitted. "This book is full of experiments and gee-whiz coolness." -  Times Record "Definitely worth adding to your study of Geometry" - A Net In Time " Junk Drawer Geometry is a great way to make learning math fun!" -- Midwest Book Review "The titular phrase 'Junk drawer geometry' is right on---all materials are inexpensive and easy to gather. A great addition to STEM collections and makerspaces." -- School Library Journal “This entertaining and instructional book is ideal for students studying geometry, exploring STEM concepts, or those who just love solving math puzzles.” -- Booklist Bobby Mercer has been sharing the fun of science for more than two decades as a high school physics teacher. He is the author of  Junk Drawer Physics , Junk Drawer Chemistry , and  Junk Drawer Engineering .  Junk Drawer Geometry 50 Awesome Activities That Don't Cost a Thing By Bobby Mercer Chicago Review Press Copyright © 2019 Bobby Mercer All rights reserved. ISBN: 978-0-912777-79-5 Contents Acknowledgments, Introduction, Student Whiteboards, 1 Geometry Tools, Pencil Compass, World's Simplest Compass, Magnetic Triangle Flash Cards, Straw Polygon, Parallel Lines, Paper Protractor, Cubic Cardboard Boxes, Right Angle String, Soup Can Tangents, Cereal Box Caliper, Angle Machine, Yarn and Cardboard Graph Paper, Unit Circle Glove, X-Y-Z Box, 2 Geometry Labs, A Voyage with Vectors, Area and Perimeter Flooring, Pipe Cleaner Translations, Cheese Cracker Pythagoras, Inscribed Angle Circles, Linear, Area, and Volume Markers, Marshmallow Volume, Midsegment Toilet Paper, Parallel Paper Plate Proof, Radians Are Fun, Smartphone Trig, Straw Components, Straw Triangles, Thumbs Up, Trig Function Coffee Filter, Wheat Cracker Area, Diameter of the Sun, How Tall Is Your House?, 3 Fun Geometry Activities, Circle Art, Circle Art 2, Circles into Squares, Curved Yarn, Flip-Book Fun, Freehand Circles, Magnet Shapes, Math Triangles, Mobius Index Card, Mobius Strip, Paper Cones, Toilet Paper Tubes, and Flashlight Cones, Paper Folding 101, Recycled Lines of Symmetry, String Ellipses, T Puzzle, Tangrams, Tessellations Are Fun, Triangular Circle, Glossary, Solutions, CHAPTER 1 Geometry Tools Geometry naturally lends itself to fun tools. Compasses, protractors, and rulers, just to name a few, are staples in math classrooms. Traditional math tools are important, and there are easy, inexpensive ways for students to make some of their own tools. You can also create some new tools out of everyday objects. Math is not a spectator sport; it should be experienced. People understand math better when they touch it. So let's make some tools to help us learn geometry. Pencil