The Marin Independent Journal – Jie Zheng 
Dual-language immersion is a method of teaching in which the learners study subjects such as math, science and social studies in a second language. Studies suggest that immersion is the most effective way to learn a foreign language, and that the critical window for learning is between birth and about 10 years of age. While some parents worry about a second language interfering with their child’s ability to master their first language to the same level and at the same pace as their monolingual peers, studies have shown that the opposite is true.(more)