| | Re: Formal Training?
Yes, you need training to be a good or great teacher, I think. But it doesn't have to be formal, and can simply be self-study, assessment, and a desire to learn from successes/mistakes.
By formal training, I assume a degree or certificate after formal study and a test. Alternatively, there's in-house training, which can also be effective. This is important, but improvement can also be had by reading and assessing.
Informal training is just what you do on your own. It's an ongoing process, and perhaps more important than a certificate or degree. The learning and improvement process shouldn't stop because you now have a piece of paper.
Any others with thoughts on the subject?