Examples are given of classroom situations which pose challenges or problems for teachers. The reasons the problems arose are discussed, and alternative suggestions are made for handling them. Discussions include classroom interactions among teachers and students in these areas: (1) using students' time efficiently; (2) classroom arrangement and teacher mobility during class-time activities; (3) securing students' interest in problem-solving lessons and involving all students in the lessons; (4) establishing rules of conduct, clarifying the purposes of rules and communicating and enforcing rules; (5) avoiding miscommunication by maintaining teacher on-task behavior, holding student interest, sending clear messages, using supportive replies to students, and avoiding the labeling of students; and (6) dealing with off-task behavior. A bibliography of writings on classroom techniques is included. (JD)