ERIC Number: EJ926903
Record Type: Journal
Publication Date: 2011-Mar
Abstractor: As Provided
Reference Count: 1
The Area of a Circle
Greenslade, Thomas B., Jr.
Physics Teacher, v49 n3 p160-161 Mar 2011
The geometrical shapes in Fig. 1 recently came into the Greenslade Collection. The semi-triangular pieces of wood looked like slices from a pie, each 22.5 degrees in angular width. They were tied together with a thin leather band tacked around their curved surfaces. What is this apparatus?
Descriptors: Geometry, Geometric Concepts, Science Instruction, Teaching Methods, Physics, Manipulative Materials
American Association of Physics Teachers. One Physics Ellipse, College Park, MD 20740. Tel: 301-209-3300; Fax: 301-209-0845; e-mail: email@example.com; Web site: http://scitation.aip.org/tpt
Publication Type: Journal Articles; Reports - Descriptive
Education Level: N/A
Authoring Institution: N/A