Answer:
In 1820, amid growing sectional tensions over the issue of slavery, the U.S. Congress passed a law that admitted Missouri to the Union as a slave state and Maine as a free state, while banning slavery from the remaining Louisiana Purchase lands located north of the 36º 30' parallel.
Graduation from high school is an indicator that you are persistent and can make it to college. The next step is college or a vocation. It's like a rite of passage, you are an adult. You are ready for the world and the world is ready for you. Graduation from high school may be the hardest thing you've done, however you are prepared for life.
Answer: Mr. Medeiros's approach can best be characterized as: TOKEN ECONOMY.
Explanation: Token economy can be defined as a system of behavior modification based on the principles of positive and negative reinforcement and positive and negative punishment. In this system of behavior modification, participants are rewarded with tokens for engaging in desirable activities. Tokens which are in turn used to purchase special privileges or meaningful objects..