Teaching Math With Examples

Some teachers think that there’s little to say about teaching with examples – after all, everyone uses them. But here are just some of the questions you might have about teaching with worked examples:
How do we introduce an example?
What do we ask students to do when studying a solution?
Should a solution be presented all at once or revealed step-by-step?
After we study an example, what comes next?
Does it matter if the solution is presented as if from a fictional student, a real student in clas...