As a teacher, and a tutor with almost a decade years of experience and having taught at different levels of education, I have come to realize that there is no singular strategy for teaching. Every teaching or learning technique complete one another.
For me, class size and mode of teaching determine what method to use. However, making the students the center of my teaching has always and will always be a foundation for me because the lesson focus, target and goals are aimed at helping them with their learning difficulties.