General issues of the method of teaching the Russian language as foreign at the initial stage of teaching

The initial stage of training, as recognized by teachers and methodologists, is the most important and difficult period, this period largely determines the further study of a foreign language. How to enter a student into the language system faster? What to select for the first stage of classes from a huge number of language facts? How to combine phonetics, grammar, vocabulary in training? What should be the ratio of reading, writing, speaking, listening? What are the most effective techniques and methods?