At the end of a unit on least common denominators, which assessment method is least effective?

The homework assignment of 25 problems checked in class is the least effective assessment method for a unit on least common denominators. While homework can be a valuable tool for reinforcing learning, simply assigning a large number of problems and checking them in class does not provide meaningful feedback or insight into students' understanding of the concept.

This method tends to focus more on quantity than quality. It may not accurately reflect a student’s ability to apply the concept of least common denominators effectively, as it relies heavily on rote practice without deeper engagement or assessment of individual problem-solving strategies. In contrast, class discussions encourage students to articulate their understanding, and individual presentations foster deeper comprehension and communication of the concept. Quizzes on previous lessons help assess continuity in learning and retention of foundational knowledge necessary for understanding new material. Each of these methods promotes active participation and critical thinking, which are essential for grasping mathematical concepts.