This document describes four models of blended learning: the Rotation model, where students rotate between online and in-person instruction; the Flex model, where students complete online curricula in a classroom with teacher support; the A La Carte model, where students choose entirely online or in-person courses; and the Enriched Virtual model, where students have limited in-person sessions and complete most work online. It also lists questions to consider when choosing a blended learning model, such as the problem being solved, students' and teachers' roles, and available technology/space.