Combinatorics and Reasoning

Introduction, background, and methodology.- The Longitudinal Study.- Methodology.- Foundations of proof building (1989-1996).- Representations as Tools for Building Arguments.- Towers: Schemes, Strategies, and Arguments.- Building an Inductive Argument.- Making Pizzas: Reasoning by Cases and by Recursion.- Block Towers: From Concrete Objects to Conceptual Imagination.- Making connections, extending, and generalizing (1997-2000).- Responding to Ankur's Challenge: Co-construction of Argument Leading to Proof.- Block Towers: Co-construction of Proof.- Representations and Connections.- Pizzas, Towers, and Binomials.- Representations and Standard Notation.- So Let's Prove It!.- Extending the study, conclusions, and implications.- "Doing Mathematics" from the Learners' Perspectives.- Adults Reasoning Combinatorially.- Comparing the Problem Solving of College Students with Longitudinal Study Students.- Closing Observations.- Erratum.Introduction, background, and methodology.- The Longitudinal Study.- Methodology.- Foundations of proof building (1989-1996).- Representations as Tools for Building Arguments.- Towers: Schemes, Strategies, and Arguments.- Building an Inductive Argument.- Making Pizzas: Reasoning by Cases and by Recursion.- Block Towers: From Concrete Objects to Conceptual Imagination.- Making connections, extending, and generalizing (1997-2000).- Responding to Ankur's Challenge: Co-construction of Argument Leading to Proof.- Block Towers: Co-construction of Proof.- Representations and Connections.- Pizzas, Towers, and Binomials.- Representations and Standard Notation.- So Let's Prove It!.- Extending the study, conclusions, and implications.- "Doing Mathematics" from the Learners' Perspectives.- Adults Reasoning Combinatorially.- Comparing the Problem Solving of College Students with Longitudinal Study Students.- Closing Observations.- Erratum.