These key issues are discussed in the following sections:
1. What is dialogue and why is it important?
2. Why is dialogue so infrequent and difficult?
3. Face-to-face and computer-mediated dialogue
4. The pedagogy, technology, and performance shift
5. Alexander's dialogic teaching: benefits and challenges
6. Four dimensions of 21st century teaching and learning
7. A five-stage process for leading and managing change
2. Why is dialogue so infrequent and difficult?
3. Face-to-face and computer-mediated dialogue
4. The pedagogy, technology, and performance shift
5. Alexander's dialogic teaching: benefits and challenges
6. Four dimensions of 21st century teaching and learning
7. A five-stage process for leading and managing change