Lesson plans have been developed or modified by undergraduate science majors, with their teacher partners, as part of the School of Medicine's Science Partners Program. The School of Medicine has coordinated the Science Partners program, with funding from the Howard Hughes Medical Institute, since 1999, and more recently with funding from the Medical School. Lessons are free and available for download. Most are appropriate for grades Kindergarten through 6th. New lessons are posted each May, after the spring semester of the program concludes.