Which method is most effective for Mr. McCullough to ensure a smooth transition between lesson topics?

The most effective method for ensuring a smooth transition between lesson topics involves ensuring all students are attentive before starting the next topic. This approach emphasizes the importance of engaging students' attention and readiness to learn. By taking the time to confirm that students are focused and prepared, Mr. McCullough can create an environment that is conducive to effective learning and minimize distractions that may arise when moving from one topic to another. This attentiveness helps to maintain continuity in the lesson and reinforces the connections between concepts being taught.

While allowing students to finish their work, informing them of assignments at the day's beginning, or maximizing work time has its benefits, these strategies do not directly address the need for student engagement and attentiveness during transitions. Engaging students’ attention directly supports their cognitive processing of new information and fosters a more effective learning atmosphere.