Situational language teaching is an approach developed by British linguists in the 1930s-1960s that focuses on teaching language through oral practice of vocabulary and grammar in real-world situations. It is based on behaviorist learning theory and emphasizes introducing language points orally before presenting them in written form. Key characteristics include using the target language in the classroom, practicing new language points situationally, and gradually introducing reading and writing after an oral basis is established. Both teachers and materials utilize real objects, pictures, and gestures to design activities for learners to practice pronunciation, revision, and oral exercises.