[texthompson]

I didn't see any place where this method was claimed to be a magic bullet, or even a more common silver bullet. In fact, the author specifically mentioned this:

> When the class period ended, I and the classroom teacher > believed that at least 19 of the 22 students had fully and > excitedly participated and absorbed the entire material. The > three other students' eyes were glazed over from the very > beginning, and they did not seem to be involved in the class at > all.

That's a very clear explanation that this method didn't work for every child in the class. In any class there will be children that are difficult to reach. This isn't necessarily an article about that.

[rgarlikov]

Thank you. Correct, the method is not claimed to be foolproof, but just a good method for many students, and it works well in large groups, often even better than with one student at a time, because if someone gets stuck, others have ideas to keep the discussion going.