What strategies can a teacher use to increase intrinsic motivation in her primary grade students ?

Correct option is D

The most effective strategy for increasing intrinsic motivation in primary grade students is to encourage them to experience the joy of learning. When students find learning enjoyable and personally meaningful, they are more likely to be motivated to engage in learning activities. Here's a short explanation of each option:
a. Praise each and every effort made by every student: While providing positive feedback and acknowledging students' efforts is important, praising every effort indiscriminately may lead to a reliance on external validation rather than fostering intrinsic motivation.
b. Punish undesirable behavior: Punishment can be demotivating and may create fear or resentment in students. It is generally better to focus on positive reinforcement and providing clear expectations and consequences for behavior.
c. Promote competition amongst students: While healthy competition can be motivating for some students, it can also lead to negative outcomes such as stress, anxiety, and a focus on winning rather than learning. Collaborative and cooperative activities that foster a sense of teamwork and support are often more beneficial.
Therefore, option d is the most effective strategy as it emphasizes the joy of learning, which can help students develop intrinsic motivation and a lifelong love for learning.