18. A teacher wants to help students distinguish between new and previously learned concepts by including both in a single review activity. Which strategy should the teacher use?

Answer: D

Explanation:

Interleaving

Interleaving is an effective strategy for helping students distinguish between new and previously learned concepts by mixing different topics or types of problems within a single review activity. This approach encourages students to continuously switch between ideas, promoting better retention and understanding.

A) Feedback

While feedback is essential for learning, it primarily focuses on providing information about performance or understanding rather than the organization of content. It does not inherently involve the integration of new and previous concepts in a review activity.

B) Retrieval practice

Retrieval practice involves recalling information from memory, which is beneficial for reinforcing knowledge but does not specifically emphasize the distinction between new and previously learned concepts. It focuses more on the act of recalling rather than intermixing different content types.

C) Metacognitive reflection

Metacognitive reflection encourages students to think about their own learning processes and strategies. Although it can help students understand their learning better, it does not directly involve the practice of distinguishing between new and previously learned concepts in a structured review format.

D) Interleaving

Interleaving is the correct choice because it systematically mixes different topics or types of problems, which helps students recognize the differences and connections between new and previously learned material. This approach enhances learning by forcing students to adapt and apply their knowledge in varied contexts.

Conclusion

Interleaving stands out as the most effective strategy for the teacher's goal of helping students differentiate between new and previously learned concepts. Unlike feedback, retrieval practice, and metacognitive reflection, interleaving directly addresses the integration and contrast of concepts within a single review activity, thereby solidifying understanding and retention.