1. Elaborating reflective abstraction for instructional design in mathematics: Postulating a Second Type of Reflective Abstraction. Issue 2 (2nd April 2020) Authors: Simon, Martin A. Journal: Mathematical thinking & learning Issue: Volume 22:Issue 2(2020) Page Start: 162 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗