Our Essential Courses Primary Source offers a rich variety of professional development programs for K-12 educators, including seminars and workshops in the Boston area, online courses for more flexible learning opportunities, and free online seminars open to the public. Courses and seminars are all being hosted online. Along with our 4-week online courses, we are introduced a new hybrid format, “Engaging with Experts” last fall. These seminars will provide 5 PDPs and require approximately 2-hours of online coursework to be completed prior to the 1.5-hour seminar, which will feature a conversation with an expert in the field. Download the Winter/Spring 2021 Course Catalog here. 2021 Winter/Spring programs