Final answer:
The teacher's tasks of ensuring smooth transitions, giving clear directions, and the efficient work checking system are all a part of classroom management strategies.
Step-by-step explanation:
The tasks described by the teacher, such as making smooth transitions between activities, clearly explaining directions, and setting up a system for work checking, all relate to classroom management. These activities are geared towards maintaining an effective learning environment where students are productively engaged and little to no instructional time is lost. While each of these tasks could be linked indirectly to teaching methodology, they are more directly related to classroom management practices, making option C the most appropriate answer.