The view of grammar as a set of rules for the correct or proper use of a
language may be characterized as the Prescriptive Approach.
Grammarians set out rules fort he correct proper use of English.
Ex. Never begin a sentence with “ AND “.
You mustn’t split an infinitive. ( This rule can be broken it isn’t because
of the English forms are bad, it is because of the breaking supposed
rule of Latin Grammar.