If a teacher wants to promote cooperative learning, the Johnsons' books are a good starting point. I hope that schools have moved beyond this 'group think' approach. It's fine on occasion, but it doesn't fit the needs of many students. Then, too, there's the issues that arise when some students don't pull their weight. The hard-working students are left feeling frustrated.
Incredibly succinct and insightful resource in implementing cooperative learning strategies in the classroom. It laid out a clear, research-based basis for cooperative learning as opposed to competitive or individualistic learning, as well as numerous resources for planning, implementation, and professional collaboration. I have bookmarked several sections I intend to use as social/emotional skills standards in designing curriculum. I would highly recommend this book for every teacher.