1. The Mathematical Reasoning of Teachers During the Design and Delivery of Instruction Open Access Author: Perkinson, David Bayless Title: The Mathematical Reasoning of Teachers During the Design and Delivery of Instruction Graduate Program: Curriculum and Instruction Keywords: Mathematical KnowledgeMathematical ReasoningPedagogical Content ReasoningCritical Instructional Moments File: Download Perkinson_Dissertation_Final.pdf Committee Members: Mary Kathleen Heid, Dissertation Advisor/Co-AdvisorMary Kathleen Heid, Committee Chair/Co-ChairGlendon Wilbur Blume, Committee MemberMark Levi, Committee MemberJames F Nolan Jr., Committee Member