After taking drawing lessons, a realization struck me. This is a great way to teach without eliminating creativity.
The key during teaching is to allow people to explore their own ideas within loose boundaries. There's no need to teach all techniques immediately. Instead, let people experiment hands-on and offer suggestions. This approach allows creative freedom. Be careful with giving too many suggestions at once. Information overload does not create a good learning environment. Often techniques do not have to be treated as hard rules. Rules can limit creativity.
This teaching method isn't too hard to apply for most subjects. Although teaching mathematics in this manner might be more challenging. But there is still room for increased freedom in most classes, including mathematics.
In the school system, those who excel and those who struggle are often at a big disadvantage. I believe the cause is often the lack of encouragement for creativity. To put it in Nietzschean terms, a lack of will to power! The best classes I experienced all allowed a level of creativity. Great teachers are rare, and usually are filled with passion. Many classes can feel unproductive or unnecessary.
To conclude with a quote:
The surest way to corrupt a youth is to instruct him to hold in higher esteem those who think alike than those who think differently.
– Friedrich Nietzsche