From SFBC:
Learn how to ride to school with your children with our on-road course. Our instructors will teach you and your children how to prepare and ride to school, including practice on a car-free space and on regular city streets with biking facilities. Parents with children of all ages are welcome, including children riding independently, but all people under 18 must be accompanied by an adult. Please bring your own bikes and helmets. This class is a great warm up for Bike to School Day on April 12, 2012! Register now.
