The duty of a teacher in nation-building is very crucial, the teacher is the first nation builder and they should understand the value of their work, they can make or break the national human resource by making them good or bad resource or add nothing in their student lives.
Apart from the teacher, it is the responsibility of a student to listen to them and practice what they teach. The best way of learning is to practice it, but often the students are misguided, they have a lot of passion and energy but no direction. They can do two things to learn things
If the teacher is teaching you ABC, research and learn next DEF
Practice makes a man perfect and it is something you need to do every day in your life to improve yourself