Although Alexander is best known for his commentaries on Aristotle, his exegetical activity extended to include short discussions on specific points of interpretation within Aristotelian philosophy. These discussions are collected in four books of Problems and Solutions and in a further book traditionally known as Mantissa (literally, “Makeweight”). These collections offer an eloquent illustration of the extraordinary variety of exegetical methods deployed in the exposition of Aristotle’s philosophy. Up to a point, the deployment of such a variety of exegetical methods can be explained with reference to the pedagogic function of these writings, which were used as teaching tools in the instruction of students with different levels of knowledge of Aristotle’s philosophy. 