Barry McLaughlin, University of California Santa Cruz has written an informative article dispelling 5 common myths. That:
1. Children learn second languages quickly and easily
2. The younger the child, the more skilled in acquiring a second language
3. The more time students spend in a second language context, the quicker they learn the language
4. Children have acquired a second language once they can speak it
5. All children learn a second language in the same way
Read the full article.