A good Safety Guideline video every rider should view:
(applies to special event riding or general group riding)

How to take off and put back on your FRONT bicycle wheel:

How to fix a FRONT wheel flat tire:

How to fix a REAR wheel flat tire:

How to change a worn out or damaged road bike tire with a new tire:

Some ideas on How to Pack for a Road Ride and Mountain Bike Ride:

NYSDOT Bicycling website for safety education and traffic laws:
Bicycle Safety & Education    www.dot.ny.gov/display/programs/bicycle/safety_laws
NYS Vehicle & Traffic Law      www.dot.ny.gov/display/programs/bicycle/safety_laws/laws
Bicycle Safety Tips               www.dot.ny.gov/display/programs/bicycle/safety_laws/safety-tips
Bicycle Safety Resources      www.dot.ny.gov/display/programs/bicycle/safety_laws/safe-smart
Children’s Bicycle Safety       www.dot.ny.gov/display/programs/bicycle/safety_laws/childrens