Teachers of senior secondary mathematics are required to contend with a number of challenges including covering the prescribed curriculum, differentiating the content for a range of learners, and preparing students for externally imposed assessment tasks. The flipped classroom is gaining in popularity as an approach that can be used to address these challenges. This paper provides a framework that can be used to interpret the affordances of a flipped classroom within the context of teaching secondary mathematics and the motivational factors that influence the uptake of the approach. Data analysed through the framework showed that students believed that the approach enabled them to have autonomy over their learning and achieve their goals. The study has implications for senior secondary teachers and students, particularly in terms of meeting the challenges of curriculum coverage and preparation for externally imposed assessment tasks.