The need for rigorous and engaging STEM education in middle school classrooms has never been more apparent than today. This session will introduce participants to a collaboration between i2 Learning, Citizen Schools, and the Boston Public Schools. They engaged 6th, 7th, and 8th graders in week-long, immersive STEM courses focused on themes not traditionally found in schools, such as Building an Interactive Friendly Monster, Kinetic Sculptures, and Surgical Techniques. In addition to the scaffolded hands-on activities that students engaged in throughout the course week, important connections were made to STEM career paths through thoughtful use of classroom volunteers. Session participants will have the chance to engage in a hands-on activity from the i2 Learning Surgical Techniques course. Additionally, participants will hear from a variety of stakeholders about the experience of putting together this multifaceted partnership, including: a Boston Public School teacher on the classroom and curriculum experience, a STEM professional on the volunteer experience, an i2 Learning team member on partnering with the district, and a Citizen Schools team member on partnering with the private sector. This session will be informative for individuals from school, nonprofit, and private sector organizations who are interested in building a collaborative partnership to bring hands-on STEM learning into the classroom.