Read the following statements and choose the correct option:
Assertion A: Teacher should ask students to identify their own examples and non-examples of the concept for strengthening the concept.
Reason R: Thinking of examples leads to strengthening of the concept while non-examples tend to confuse the students.

Correct option is D

Assertion A is true. Asking students to identify their own examples and non-examples of a concept is a powerful educational technique. It encourages active learning and helps students to understand the boundaries of the concept, leading to a deeper and more comprehensive understanding. This practice engages students in higher-order thinking and helps them to internalize the concept more effectively.
However, Reason R is false. Thinking of non-examples does not necessarily confuse students. Instead, it can be a valuable part of learning as it helps students to distinguish what the concept is not, clarifying its boundaries and reinforcing their understanding. By analyzing non-examples, students can develop a more nuanced understanding of the concept and avoid misconceptions. Thus, while A is true, R is false, making option (d) the correct answer.