How does the mother tongue help the learning of English?
Research has shown that many skills acquired in the first language can be transferred to the second language. So, for example, if your child has developed good reading skills in Korean, she is likely to be able to apply these skills when reading English. (One useful reading skill is the ability to guess the meaning of unfamiliar words from context. Another one is the ability to decide which new words in a text are important to look up in the dictionary and which words can safely be ignored.) For this reason it helps if you can encourage your child to read good fiction and non-fiction in her own language. Similarly, the skills of being able to plan out a piece of writing or develop an argument in a persuasive essay can be applied in the second language once they have been learned in the first.