Contact us

Contact Us

FOSS loves to hear from educators and students in the field! To share ideas, exciting moments from your classroom, or ask curriculum questions:

Mailing address:

Full Option Science System
The Lawrence Hall of Science
1 Centennial Drive
Berkeley, CA 94720

Contact Our Publisher

If you have questions or need support for FOSS curriculum or FOSSweb on Thinklink, the FOSS Knowledge Base is a great place to start. For further assistance, you can reach us below.

Current teachers and administrators looking for FOSS instructional content can log in to ThinkLink here.

Sales questions:

ThinkLink questions:

Immediate ThinkLink support:
800-258-1302 Option 5
8:00 am to 5:30 pm ET
Monday through Friday