In the Shattering Expectations series, the reports focus on calling attention to gaps at the high end of achievement and shattering expectations about the achievement of our low-income students and students of color that have existed for far too long. Each report will provide examples of schools that are breaking long entrenched patterns and how they are helping all their students reach high levels of performance. In general, papers in this series will focus on strategies for increasing excellence and rigor in our schools, while also attending to equity. This is the second paper in the series. This report examines the high-end opportunity gap that exists in regard to AP and IB course taking within our schools. AP and IB courses are a powerful means of disrupting high-end achievement gaps, but too many low-income students and students of color are missing out. Expanding access to more schools is needed, but if every school with an existing AP program focused on finding its own "missing students," we could almost entirely eliminate participation gaps. Many schools have successfully eliminated inequitable patterns in students taking advanced courses. Their stories offer lessons for others ready and willing to take action.