Before revision: The "warming up" process may involve some of the same techniques, such as counseling a student that if he can pass the chemistry and mathematics classes needed to get a two-year degree in welding, that he may be able to handle engineering coursework.
After revision: The "warming up" process may involve some of the same techniques, such as counseling students that if they can pass the chemistry and mathematics classes needed to get a two-year degree in welding, they may alsomore challenging be able to handle engineering coursework.