How will teachers handle this additional load?

We are designing this to NOT be an additional load but to weave walk/bike/roll training into existing Physical Education goals and curriculums over the course of a students K-12 school career. Studies have shown that students who use active transportation in high school continue to use it throughout their lifetimes. Bicycle training is also excellent pre-driver training.

How much will it cost to add walking, biking, and rolling instruction to California schools?

We are still working on budgets. There are some startup costs but in general walking is very inexpensive and bicycling very economical as well. If students can bring their own bike, the cost is very low but it is likely that schools will want a dedicated fleet of teaching bicycles.

How long will this take to implement?

Some school districts like San Francisco Unified and Palo Alto Unified have already implemented this education. 

For the rest of California, it all depends on political will.  It could happen next year, it could be 10 years. The more who support it, the faster it will happen.

Where will schools get bicycles? How will schools store them?

San Francisco Unified has fleets of bicycles in trailers that move between schools. Acquiring and managing a fleet of teaching bikes is a challenge but doable.

Are any schools already teaching this?

Some schools in California including those in the San Francisco Unified and Palo Alto Unified school districts.