The document discusses the flipped classroom model of instruction. In a flipped classroom, students watch video lectures at home and do homework and projects in the classroom with a teacher present. This flips the traditional model where lectures are done in class and homework is done at home. The document outlines the key aspects of the flipped classroom model including having students watch videos to gain initial content exposure before applying and practicing what they learned in class. Examples are given of how the model has improved student outcomes in schools that adopted it.