As the next lesson approaches, children might feel stressed at the thought of embarrassment, try to cram in a longer practice session before the lesson, only to have forgotten most of what was learned. The next guitar lesson turns into an observed practice session, going over the same old song again.
Now, I’m not saying this approach is always wrong, or teachers who use this approach aren’t good teachers. As a matter of fact, this is pretty much the way I was taught, and I used this ‘traditional’ approach for my own teaching, too! But it can contribute to a problem – the practice problem. Practice feels like homework, and lessons can feel like a test.