Having a multilingual family I have often ask myself what is the best method for helping my children to learn and be proficient at several languages at the same time.  After 6 years, I am still trying to find the right balance and a concrete answer for this question.  So far, I believe that there is not a best method, but that there are several methods suitable for individual families.  that is to say that for each family there is "one best method" that works for them.  There are clearly some approaches that allow the child to develop the consciousness of two language systems more quickly than others. For example, the most often cited is the "one parent one language" approach.  There is also the family versus community lang...