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

Showing one result
Peer reviewed Peer reviewed
Direct linkDirect link
Otten, Samuel; Gilbertson, Nicholas J.; Males, Lorraine M.; Clark, D. Lee – Mathematical Thinking and Learning: An International Journal, 2014
International calls have been made for reasoning-and-proving to permeate school mathematics. It is important that efforts to heed this call are grounded in an understanding of the opportunities to reason-and-prove that already exist, especially in secondary-level geometry where reasoning-and-proving opportunities are prevalent but not thoroughly…
Descriptors: Abstract Reasoning, Textbook Research, Textbook Evaluation, Geometry