How do the Russians teach Russian language In the world children begin to speak in 1.5 years. To speak understandable at the age of 3 years. In 5 years children cease to do speech errors related to grammar. But, nevertheless, this whole process depends on many factors such as heredity, the nature of the child, the intellectual level of parents, the welfare of the family, etc. For people who want to speak fluently and understand other people don't need grammar absolutely. In addition, adults people basically forget all the grammar rules of the school curriculum. At least in Russia, very few adults remember the rules of declension of nouns or conjugation of verbs. Moreover, Russian grammar is very difficult even for adult native speakers. If you aren't gonna get a degree in Russian language and want to learn how to speak fluent Russian, remember – don’t study grammar. Otherwise you'll get confused so that the degree of difficulty will scare you, and you'll just gave it up. But there is a good news. Russian language has great advantages. One of which, is the ability to rearrange words in a sentence as you want. By and large, to learn Russian language you just need to learn how to transform words. You need to teach your brain to do it automatically for you. But to achieve this you have to repeatedly train your speech center in the brain. For example. Get a notebook and write down. To take one word and transform it in all possible forms. Then another word in the same way. In the end, the interesting thing will happen - your subconscious mind will take all of the rules automatically. I don't know the rules of grammar as a native Russian speaker, but intuitively understand all of them. I never did any homework in Russian language in high school, but I passed all the exams "A". If when learning a new language you will try to study it through the grammar, then you'll use your brain only 5%, but if you become to learn using the subconscious mind, then you'll use 95% of resources. Good luck!