Final answer:
Tahir is trying to help his students develop a growth mindset.
Step-by-step explanation:
Tahir is trying to help his students through fostering Growth mindset. He emphasizes that their effort is just as important, if not more important, than their current ability because the brain is still growing and developing. By encouraging his students to believe in their own potential for growth and improvement, Tahir is promoting a growth mindset that can enhance their motivation and learning.