This book investigates how educators can effectively modify and expand existing secondary mathematics tasks to better facilitate deep student engagement and conceptual understanding. The authors, Pat Perks and Stephanie Prestage, draw upon their extensive experience in mathematics teacher education to provide a framework for transforming standard classroom exercises. By focusing on the potential for extension, they argue that teachers can move beyond rote procedural learning to foster more complex mathematical thinking and problem-solving skills in their students.

Educators and curriculum developers frequently cite this work as a practical resource for enhancing classroom instruction through task modification. Experts highlight the text for its clear, actionable approach to secondary mathematics pedagogy, making it a useful reference for both novice and experienced teachers.