What is the difference between simultaneous multilingualism and sequential mulilingualism?

Simultaneous bilingualism (or multilangualism) is when a child acquires two (or many) languages simultaneously, for example when they are raised by parents speaking more than one language. Sequential is when the child acquires the second language (s) after having considerably learnt the first language, for example when the parental tongue is different than the main language of the community or education system.

Explanation:

Simultaneous bilingualism is when bilingualism is achieved via acquiring a first and second language concurrently. Sequential bilingualism is when bilingualism is achieved via learning a second language later than the first language.

Hope this helps :)

i think that the quotes in paragraph 11 contribute to the development of ideas because it provides a good reasoning of the central idea of the text.