Karen Heinz

Meaningfully Connecting Mathematical Pieces: An Account of A Teacher in Transition

Ron Tzur, Martin A. Simon, Karen Heinz, 1998 .

A perspective on the use of manipulatives: Making sense of a sixth-grade teacher’s use of base-ten blocks to promote understanding of the long division algorithm

Ron Tzur, Martin A. Simon, Karen Heinz, 1999 .

Is 7/10 always equivalent to 700/1000?

Karen Heinz, Laurie H. Rubel, Thomas A. Evitts, 2010 .

Shifting mathematical authority from teacher to community

Corey Webel, Karen Heinz, Karen Heinz, 2010 .

Explicating a Mechanism for Conceptual Learning: Elaborating the Construct of Reflective Abstraction

Margaret Kinzel, Ron Tzur, Martin A. Simon, 2004 .