Title. Middle School Math Teacher. Reports To. Upper School Division Head. Classification. Full Time. Status. Academic Year Faculty (25-26). About Marin Country Day School. MCDS School is an independent, K-8, co-educational day school enrolling approximately 600 students from across the Bay area, drawing equally from San Francisco and Marin. Our mission at MCDS is to create an inclusive community of learning that inspires. curiosity. . empathy. a...