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Why do some mathematics lessons captivate high school students and others not? This study explores this question by comparing how the content unfolds in the lessons that students rated highest with respect to their aesthetic affordances (e.g., using terms like “intriguing,” “surprising”) with those the same students rated lowest with respect to their aesthetic affordances (e.g., “just ok,” “dull”). Using a framework that interprets the unfolding content across a lesson as a mathematical story, we examine how some lessons can provoke curiosity or enable surprise. We identify eight characteristics that distinguish captivating lessons and show how some, such as the average number of questions under consideration at any point in the lesson, are strongly related to student aesthetic experiences. In addition, the lessons that students described as more interesting included more instances of misdirection, such as when students’ false assumptions provide opportunities for surprising results. These findings point to the characteristics of future lesson designs that could enable more students to experience curiosity and wonder in secondary mathematics classrooms. 

How can we design mathematical lessons that spark student interest? To answer this, we analyzed teacher-designed and enacted lessons that students described as interesting for how the content unfolded. When compared to those the same students describe as uninteresting, multiple distinguishing characteristics are evident, such as the presence of misdirection, mathematical questions that remain unanswered for extended time, and a greater number of questions that are unanswered at each point of the lesson. Low-interest lessons did not contain many special narrative features and mostly had questions that were answered immediately. Our findings offer guidance for the design of lessons that can shift student mathematical dispositions. 

The importance of curricular coherence has been emphasized by leaders in mathematics education, who explain that coherence enhances deeper understanding by enabling students to see connections between mathematical ideas. Although there are different forms of curricular coherence in teaching and learning mathematics, the coherence within a lesson has received considerably less attention. In particular, little is known about what constitutes coherent lessons or how to measure the degree of coherence. Using lesson data from a larger study in which lessons are intentionally designed for coherence, we propose a tool for examining lesson coherence and describe characteristics of the lessons with different levels of coherence. 

Secondary students do not often have positive experiences with mathematics. To address this challenge, this paper shares findings of a design-based research project in which a mathematical story framework was used to design mathematically captivating lesson experiences (“MCLEs”). We provide evidence that designing lessons as mathematical stories shows promise. That is, students reported improved experiences in MCLEs when compared to randomly-selected lessons. The MCLEs also impacted the students’ descriptions of their experience.