It kinda seems like a no-brainer:  Retiring Boomers are looking for a good second career. Schools are strapped for volunteers and teachers.  States are starting to make the connection, according to Stateline:

Maryland, California, Virginia and other states are recruiting retirees to work in public schools as volunteers and salaried employees, offering boomers what they say they want -- meaningful second careers.

In Maryland, first-term Gov. Martin O'Malley (D) plans to take the successful Baltimore program statewide. California Gov. Arnold Schwarzenegger (R) this summer launched a statewide program that partners with high-tech companies to recruit, train and place retiring employees in the state's public schools. Virginia and other states use federal money to train retirees for volunteer work in classrooms and with students who need extra help.