What are the main points of direct method by Palmer?

1 in foreign language learning the pupil must follow the path he has followed in acquiring the mother tongue
2 the deductive explanation of grammar and the use of grammar exercises
3 the development of audio-lingual skills, i.e. listening comprehension and speaking
4 new material is presented in a dialogue form
5 translation interprets the words and phrases of the foreign languages in the best possible manner