Double negative: The necessity principle, commognitive conflict, and negative number operations

When the Rules of Discourse Change, but Nobody Tells You: Making Sense of Mathematics Learning From a Commognitive Standpoint

Anna Sfard · Journal of the Learning Sciences · 2007 · 365 citations

Education, Mathematics, Mathematics Education +16

DNR perspective on mathematics curriculum and instruction, Part I: focus on proving

Guershon Harel · ZDM · 2008 · 137 citations

Education, Instruction, Mathematics Education +4

A DNR perspective on mathematics curriculum and instruction. Part II: with reference to teacher’s knowledge base

Guershon Harel · ZDM · 2008 · 100 citations

Education, Instruction, Mathematics Education +11

Integers as Transformations

Patrick W Thompson, Tommy Dreyfus · Journal for Research in Mathematics Education · 1988 · 57 citations

Education, Mathematics, Mathematics Education +12

An operational definition of learning

Guershon Harel, Boris Koichu · The Journal of Mathematical Behavior · 2010 · 44 citations

Education, Educational Assessment, Organizational Learning +8