Combinatorics and Reasoning : Representing, Justifying and Building Isomorphisms / edited by Carolyn A. Maher, Arthur B. Powell, Elizabeth B. Uptegrove.

Springer eBooks

Introduction -- The Longitudinal Study -- Methodology -- Representations as a Tool for Building Arguments -- Building Towers: Justifications Leading to Proof Making -- Making Pizzas: Reasoning by Cases and recursion -- Responding to Ankur's Challenge: Co-construction of Argument Leading to Proof -- Co-construction of Proof -- The Case of Stephanie -- Representations and Connections -- Pizzas, Block Towers, and Binomials -- Generalizing from Pizzas, Towers, Binomial Expansion, and Pascal's Triangle -- Extending and Generalizing the Isomorphism: Towers, Pizzas, Pascal's Triangle, and the Taxicab Problem -- College Students Building Towers and Making Pizzas -- Comparing the Problem Solving of College Students with Longitudinal Study Students -- Conclusions and Suggestions for Practice.

Combinatorics and Reasoning: Representing, Justifying and Building Isomorphisms is based on the accomplishments of a cohort group of learners from first grade through high school and beyond, concentrating on their work on a set of combinatorics tasks. By studying these students, the Editors gain insight into the foundations of proof building, the tools and environments necessary to make connections, activities to extend and generalize combinatoric learning, and even explore implications of this learning on the undergraduate level. This volume underscores the power of attending to basic ideas in building arguments; it shows the importance of providing opportunities for the co-construction of knowledge by groups of learners; and it demonstrates the value of careful construction of appropriate tasks. Moreover, it documents how reasoning that takes the form of proof evolves with young children and discusses the conditions for supporting student reasoning.

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