Ian Whitacre

Obstacles and Affordances for Integer Reasoning: An Analysis of Children's Thinking and the History of Mathematics

Jessica Pierson Bishop, Lisa Lamb, Randolph A. Philipp et al. · Journal for Research in Mathematics Education · 2013 · 104 citations

Integer Reasoning, Mathematics Cognition, Educational Psychology +17

A Local Instruction Theory for the Development of Number Sense

Susan D. Nickerson, Ian Whitacre · Mathematical Thinking and Learning · 2010 · 52 citations

Mathematics Curriculum, Educational Writing, Educational Psychology +19

Using order to reason about negative numbers: the case of Violet

Jessica Pierson Bishop, Lisa Lamb, Randolph A. Philipp et al. · Educational Studies in Mathematics · 2013 · 36 citations

Order Theory, Negative Numbers

Prospective Elementary Mathematics Teacher Content Knowledge: What Do We Know, What Do We Not Know, and Where Do We Go?

Eva Thanheiser, Christine Browning, Alden J. Edson et al. · The Mathematics Enthusiast · 2014 · 31 citations · Full text

First graders outwit a famous mathematician

Jessica Pierson Bishop, Lisa Lamb, Randolph A. Philipp et al. · Teaching Children Mathematics · 2011 · 28 citations

Right Tools, Mathematics Education, Twenty-first-century Students +9