‘All learners in school begin their education in the mother tongue and move on to add many more languages as they move forward in school.’
What is this known as in language-in-education policy ?

The correct answer is Mother tongue-based multilingualism.

Explanation:

Mother tongue-based multilingualism is an educational policy and pedagogical approach where children start their primary schooling in their native language (mother tongue). Once a solid foundation in the primary language is established, additional national and foreign languages are gradually introduced into the curriculum.

Key Aspects of Mother Tongue-Based Multilingualism:

1. Foundation in Home Language: Early learning occurs in the language the child knows best, which aids comprehension, cognitive development, and literacy skills.

2. Sequential Language Acquisition: Additional languages (such as official national languages or global languages) are introduced progressively as second or third languages.

3. Educational Continuity: It prevents cognitive overload and linguistic confusion, ensuring better engagement and retention among school children.