Contextualization is a basic premise. Language learning is learning structures, sounds, or words. Language learning is learning to communicate. I wonder how learners communicate with each other without the knowledge of words and phrases, grammar and structures. It depends on the teacher's how-to, it's not always.
Effective communication is sought.
Drilling is a central technique. Drilling may occur, but peripherally. Comprehensible pronunciation is sought. Grammatical explanation is avoided. Any device which helps the learners is accepted - varying according to their age, interest, etc.