High quality STEM in OST is engaging and enriching for youth and can be a valuable professional development opportunity for staff. Taking time to get clear about how STEM supports your program’s goals, and how your staff will be supported in leading STEM activities will help to ensure success. Strong STEM programs need big picture STEM learning goals that are linked to the program goals and/or school goals. Use this tool as part of a process of continuous quality improvement to assist you in developing and reaching your STEM goals. The purpose of the Assessment and Planning Tool for STEM in Expanded Learning Programs is to help programs assess existing STEM learning opportunities and assets, determine where you are on the OST program STEM pathway and identify next steps to move along the pathway, and develop your STEM program plan.