NotesFAQContact Us
Collection
Advanced
Search Tips
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.

Learn more about the history of ERIC here. PDF icon

Back to results
Peer reviewed Peer reviewed
ERIC Number: EJ518855
Record Type: CIJE
Publication Date: 1996
Pages: N/A
Abstractor: N/A
Reference Count: 0
ISBN: N/A
ISSN: ISSN-0025-5769
The Case of Trapezoidal Numbers.
Feinberg-McBrian, Carol
Mathematics Teacher, v89 n1 p16-24 Jan 1996
Explores trapezoidal numbers, which are the result of subtracting two triangular numbers. Includes classroom activities involving trapezoidal numbers to help students develop their problem-solving skills. Includes reproducible student worksheets. (MKR)
Descriptors: Geometry, Mathematics Instruction, Number Concepts, Problem Solving, Secondary Education, Worksheets
Publication Type: Guides - Classroom - Teacher; Guides - Classroom - Learner; Journal Articles
Education Level: N/A
Audience: Teachers; Practitioners
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers: Mathematics Activities; Problem Posing