This post is a reflection on my strategies for assessment (Domain 4) for the American School Foundation of Monterrey Track 1 project. Assessing student learning is at the centre of teaching but is really two distinct activities: summative assessment, or evaluating and reporting student learning at the end of a topic, unit or class; and formative assessment, or continually evaluating student learning and providing feedback to students in order to improve. I will discuss the two separately as I reflect on how I assess students.