After reading Chapter 5, Cooperative Learning, in Hill & Miller's textbook, please answer the following: What are the elements of cooperative learning as described by Cochran (1989) and Johnson

After reading Chapter 5, Cooperative Learning, in Hill & Miller's textbook, please answer the following: 

1. What are the elements of cooperative learning as described by Cochran (1989) and Johnson & Johnson(1999)?
2. How could cooperative learning foster language acquisition?
3. What are the advantages of using small groups to facilitate language acquisition?
4. Describe one informal cooperative learning activity of those suggested in the textbook.

When completing this assignment, write the question and then the answer. This assignment must be between 2 and 2 ½ pages long and typed in MS Word or Google doc, double-spaced, and Times New Roman #12 as the font and size.