Language immersion, English “immerse = to plunge into/to be fully involved”, is one of the methods used in bilingual educational establishments for children. It involves introducing a child to the world of foreign languages, without explanation in their native language.
That way children learn the language intuitively, by observing their surroundings and situations, which are described in the foreign language so it is acquired in a natural way.
This process is the same as learning their mother tongue.
Immersion method is considered to be one of the most successful methods in teaching children a foreign language.
It is because the language is used as a tool that allows you to explore the world, so it is not a learning objective in itself.