From 1991-2019 at the University of Arkansas for Medical Sciences (UAMS), 202 different faculty individuals, from each of the five UAMS colleges, volunteered to offer 120 different workshops in health science content to 22,731 PreK-12 teachers and some school nurses in the Partners in Health Science (PIHS) program. Participants consumed 83,488 hours of professional development. Workshops were held at UAMS or in 39 communities in the state. Workshops provided each participant with a "take home" Resource Kit (RK) containing topic-appropriate materials, supplies and/or items of equipment, used in the workshop, intended to foster replication of workshop experiences in the teacher's home classroom. Short-term, i.e. same day evaluations indicated a high degree of satisfaction with the workshops. Long-term (6 months or longer after a workshop) evaluations revealed that a large number of the participants performed new experiments/demonstrations and/or classroom activities involving audience participation for their students -- a strong sustainability factor because it could last for a participant's entire teaching career. Pre vs. posttest data recorded a gain in knowledge from 1737 participants in several workshops ranging from 14.8% correct to 29.8%. Extramural funding was consistent, but varied over the duration of the program.