Exploring the Territory Before Proof: Student‘s Generalizations in a Computer Microworld for Transformation Geometry

Verbal reports as data.

K. Anders Ericsson, Herbert A. Simon · Psychological Review · 1980 · 4.4K citations

Social Sciences, Linguistics, Psychology +5

Mathematical Discovery, On Understanding, Learning, and Teaching Problem Solving.

Herbert S. Zuckerman, George Pólya · American Mathematical Monthly · 1966 · 790 citations

Education, Mathematics, Mathematics Education +17

Teachers of Mathematics

Howard F. Fehr · Mathematics Teacher Learning and Teaching PK-12 · 1948 · 652 citations

Education, Mathematics, Mathematics Education +11

On proof and progress in mathematics

William P. Thurston · Bulletin of the American Mathematical Society · 1994 · 629 citations · Full text

Natural Sciences, Mathematics, Dynamical Systems +9

The Growth of Logical Thinking

F.V. Smith, Bärbel Inhelder, Jean Piaget · British Journal of Educational Studies · 1959 · 603 citations

Humanities, Philosophy, Logic +9