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50 Years of ERIC
50 Years of ERIC
The Education Resources Information Center (ERIC) is celebrating its 50th Birthday! First opened on May 15th, 1964 ERIC continues the long tradition of ongoing innovation and enhancement.

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ERIC Number: EJ288739
Record Type: CIJE
Publication Date: 1983
Pages: N/A
Abstractor: N/A
Reference Count: 0
ISBN: N/A
ISSN: N/A
Sharing Teaching Ideas.
Mathematics Teacher, v76 n9 p671-76 Dec 1983
Several brief articles are included in this section. "Purple Puzzlers" are challenging problems for algebra students. "Linear Invaders" is a game to reinforce concepts of graphing lines. "The Diagonal Method" is used to prove that the real and natural numbers cannot be put into one-to-one correspondence. (MNS)
Descriptors: Algebra, Educational Games, Graphs, Learning Activities, Mathematics Instruction, Number Concepts, Problem Solving, Secondary Education, Secondary School Mathematics
Publication Type: Journal Articles; Guides - Classroom - Teacher
Education Level: N/A
Audience: Practitioners
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers: N/A