Culture should be part of language learning. A major focus is on communication and understanding of the language rather than grammar. Errors are corrected by encouraging self correction or by asking the correct answer from other students in the classroom. Reinforcement depends on the individual teacher. No systematic form of evaluation is used.
Evaluation is done by asking questions to students during the lesson.
There is a close match between evaluation and what the student has learned. She also asked these types of questions to individual students. It is difficult to know if students are pointing to the correct object in the first type of questions. The natural approach was developed by Tracy Terrell, a Spanish teacher in California. Thus, this approach became very popular in California in the 1970's.