Abstract
The term grammar can be understood either as a set of objectively existing rules of a language system, or as speakers' internalised/internal knowledge of these rules, or as a linguistic (or linguodidactic) description of the rules. Knowledge of the target language grammar system enables and speeds up the language acquisition.
The term grammar has been developing and focusing on certain characteristics of a language system. Therefore, we distinguish between synchronous and diachronous, descriptive and prescriptive, comparative etc. approach.
Didactic grammar has its own specific features (it reduces and simplifies the presented matters). It focuses on the question of presenting grammar, the choice and ordering of categories, their practice and testing.
Until now, the prevailing method was semasiological, that is going from the form to the meaning. The onomasiological method does also have its advantages, that is going from the meaning, function to the formal realization.