MATHEMATICS INSTRUCTOR - ALTERNATIVE HIGH SCHOOL. TRUMAN MIDDLE COLLEGE. . Truman Middle College (TMC) is seeking a Full-Time Math Teacher to start in Spring 2024. Truman Middle College (TMC) is an Alternative High School (AHS) within the Youth Connection Charter School Network, open to eligible youth between 16 to 21 years old. TMC aspires to empower students to rise above barriers in order to become successful college and career ready individua...