The Central California STEM Collaborative Spring Symposium will be from 4-7 p.m. Thursday, March 5 at the Center for Irrigation Technology (5370 N. Chestnut Ave.).  Participants will network with other STEM (science, technology, engineering and math) educators from throughout the Central Valley and attend several presentations. Physics demonstrations will conducted from 3:30-4 p.m. On-site parking is free. The event is presented by Fresno State’s Mathematics and Science Teacher Initiative. INFO: Dr. Carol Fry Bohlin, symposium coordinator, at carolb@csufresno.edu or 559.278.0237.