Justin Reich, teaching MIT's CMS.595 Learning, Media, and Technology, examines the data schools and ed-tech platforms collect on students and what that power can do when left unchecked. He walks through data usage policies, the question of what meaningful consent looks like for students and parents in educational research, and the ethics of running experiments on learners without their knowledge. The lecture sets the drive to improve products and outcomes through constant testing and measurement against the autonomy and privacy of the people being studied, using examples from educational research practice to show how good intentions in data collection can slide into exploitation. Reich pushes students to think about who benefits from school data, who consents to its use, and what accountability should look like when children are the subjects. Runtime is 74 minutes, part of a full MIT OpenCourseWare lecture series.