I spend my summers camping, traveling and going to the beach with my kids, but if I didn’t I might do one of these:
The Ignited Summer Fellowship Program places San Francisco Bay Area teachers into summer fellowships with Bay Area technology companies. There is a stipend of $7000 – $9000.
Stanford University’s Office of Science Outreach and Lawrence Berkeley Labs have paid summer research fellowships for teachers.
The Coastal Marine Biolabs teacher training on the Barcode of Life Program pays a stipend, and it will transform your teaching of molecular biology.
Cal Poly’s STAR Teacher Researcher Program can set you up with a paid research fellowship at a number of California labs such as those run by NASA and the Department of Energy. There is a $5000 – $6000 stipend. This program is for current California State University students and recent graduates of the California State University system.
Frontiers in Physiology is the American Physiological Society’s (APS) flagship program for the professional development of middle and high school science teachers.
The Monterey Bay Aquarium Research Institute has a summer internship program with a stipend.
Chabot Space & Science Center offers teacher workshops.
NASA’s Texas Space Grant Consortium offers weeklong professional development training for teachers. This aerospace workshop, called LiftOff, emphasizes science, technology, engineering, and mathematics (STEM) learning experiences by incorporating a space science theme supported by NASA missions.
National Geographic Network of Alliances for Geographic Education offers world-class professional development opportunities throughout the U.S.
These are organized programs that you apply for. It’s also possible to build your own customized summer opportunity – my book discusses real-world examples of how teachers have started a project, obtained affiliations, collaborated, applied for things, traveled with purpose, taught what they learned, and published the results.