Membean is a site where you learn words and answer questions about them. You also learn root words for the words you are studying. I think it is better for students to use Membean rather than a vocabulary list because everyone just forgets the words after the quiz of the list. However, with Membean you can go back to any word you have studied, and when you miss a question, you restudy the word that you missed. There are so many words I have only made it to level 2, and I’ve used it for about 100 days (but some people are way ahead of me). Anyway, it helps build your knowledge of vocabulary and a lot of words I find in books or other sites. I would definitely prefer Membean as my vocabulary learning site and I hope that more schools will start using it.