This project will promote data literacy in high school students by engaging them in learning about the Quantified Self, the practice of using technology to track and reflect on one’s own biological, behavioral, physical, and/or emotional data. Learning activities will be designed to spark a broad interest in science and to help develop students? informed opinions about the role of human-generated data in public life. To achieve this goal, the project will develop and test software tools as well as lesson and professional development materials with which students and teachers can explore, analyze, and create novel, multimodal, and interactive representations of data, recorded by wearable biosensing devices. Students will (a) learn about how data from their bodies can be captured and interpreted through hands-on STEM activities that include the creation of interactive data representations; (b) design and execute small exploration projects to answer their own questions and create offline and online artifacts to communicate their findings; (c) engage in discussions that consider the privacy implications of using data-fueled services and applications and critically evaluate how their personal data is being used. During and after the project, instructors and students will have opportunities to connect with industry partners who work with biosensing and wearable technologies, and to access career and college readiness resources relevant to these and related data technology fields.