In Massachusetts, a Voc/Tec instructor in a public high school, who is fully certified by the state, can expect to start at about $50K. After about 10 years that number will go up to about $70K, depending on the particular school district and the teacher's level of education. Most contracts in this state reward an employees higher level of education. these numbers are in addition to benefits that are not as cushy as some would believe. For instance, I pay 40% of my health insurance, and it is not the best policy in the world. The pay is based on 182 teaching days each year. Good luck.
It is a great profession if you like young people. If you do not like young people DO NOT take this career path, the kids will eat you up...believe me!!