Education is more than human rights. Education changes human lives. The value of people can be understood on the basis of the quality of classroom activities. The ideal classroom set-up changes from time to time. There was a time when teachers used to teach under tree branches or beside a cliff. Teaching methodologies, textbooks, infrastructures, and everything get changed. Diversity of teaching is a beauty, and teaching-learning activities vary from society to society. Different age groups, nationalities, backgrounds, ethno-socio-economic-cultural upbringings of the learners, and other factors define the classroom teaching.