In the introduction, the authors make what seems to be an unusually commonsense point. We are told that ' One important basis for evaluating the potential effectiveness of new methods is, of course , the teacher's own experience with previous successes or disappointments. In addition, teachers who are informed of some of the findings of recent research are better prepared to judge whether the new proposals for language teaching are likely to bring about positive changes in students' learning '. The questionnaire used for this purpose has been professionally executed. Languages are learned mainly through imitation.
Parents usually correct young children when they make grammatical errors.
People with high IQs are good language learners. The most important factor in second language acquisition success is motivation. The earlier a second language is introduced in school programs, the greater the likelihood of success in learning. Most of the mistakes which second language learners make are due to interference from their first language. Teachers should present grammatical rules one at a time, and learners should practice examples of each one before going on to another.