Which strategy is least effective when dealing with classroom disruptions?

When it comes to managing classroom disruptions, the least effective strategy is randomly assigning tasks. This approach does not provide a structured or purposeful environment for students, which can exacerbate disruptive behavior instead of addressing it. Random assignments may lead to confusion and disengagement among students, as they may not understand the relevance of the task or see the connection to the learning objectives.

In contrast, engaging the entire class actively draws them into the lesson and fosters a sense of community while ignoring low-level disruptions can sometimes minimize their impact, as it signals to students that such behavior doesn't warrant attention. Providing a clear signal for attention is an effective management technique that helps regain focus and can smoothly redirect students back to the task at hand. These methods are beneficial in maintaining an orderly classroom environment and ensuring effective teaching and learning.