Curriculum Design

• Understanding by Design by Wiggins and McTighe

Differentiating Instruction

• Integrating Differentiated Instruction and Understanding by Design by Tomlinson and McTighe
• Styles and Strategies for Teaching High School Mathematics by Thomas, Brunsting, and Warrick

Geometry

• The Classification of Quadrilaterals: A Study of Definition by Usiskin and Griffin
• The Nature of Proof: Thirteenth Yearbook by National Council of Teachers of Mathematics

Riddles and Problem Solving

• Fundrum My Conundrum: A Book of Riddles by Kovler and Epstein