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Children’s Integer Understanding and the Effects of Linear Board Games: A Look at Two Measures The purpose of this study was to identify affordances and limitations of using order and value…
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Teaching Practices for Differentiating Mathematics Instruction for Middle School Students Three iterative, 18-episode design experiments were conducted after school with groups of 6–9 middle…
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The Development and Assessment of Counting-based Cardinal Number Concepts The give-n task is widely used in developmental psychology to indicate young children’s knowledge or use of the…
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Second and Fifth Graders’ Use of Knowledge-Pieces and Knowledge-Structures When Solving Integer Addition Problems In this study, we explored second and fifth graders’ noticing of negative…