Hello
I am not sure if these sentences are right or not in terms of their grammar, word choice, and semantics. If you find something wrong, please help me edit them. Thank you very much.
1. Is it effective to learn a second language only in early age? It is fine to introduce a foreign language in elementary schools. However, it is not harmful to learn a foreign language in puberty or adulthood.
2. Rethink the advantages of Bilingual Education
3. The first language plays a more important role in L2 academic achievement.
4. Teachers should know the causes that impede students' English learning and make effort to elevate students’ motivation, create a good learning environment and help them develop their own learning strategies.