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ERIC Number: EJ886973
Record Type: Journal
Publication Date: 2010-May
Pages: 6
Abstractor: ERIC
Reference Count: 1
ISSN: ISSN-0025-5769
Bridging Algebra & Geometry with "n"-Gram Proofs
Craven, Joshua D.
Mathematics Teacher, v103 n9 p676-681 May 2010
For many students, geometry is the first course in which mathematical proof takes center stage. To help ease students into writing proofs, the author tries to create lessons and activities throughout the year that challenge students to prove their own conjectures by using tools learned in previous mathematics courses. Teachers cannot get all students to participate in deep discussions about a mathematics activity when many of them are not experiencing success in mathematics. Sometimes all that these students need is a small head start to overcome a creative barrier. This article features one such activity for high school geometry class--hint cards--which shows students that there can be different ways to arrive at a proof. As a prerequisite, students must know how to calculate the sum of a convex polygon's interior angle measures. (Contains 5 figures.)
National Council of Teachers of Mathematics. 1906 Association Drive, Reston, VA 20191-1502. Tel: 800-235-7566; Tel: 703-620-3702; Fax: 703-476-2970; e-mail:; Web site:
Publication Type: Journal Articles; Reports - Descriptive
Education Level: High Schools
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A