[Eric18]

In American IEP programs, especially in the summer, co-teaching occurs quite a bit.

Personally, I'm a bit ambivalent. If you respect your co-teacher and they do a fine job, than it's wonderful to have a second voice to help students. Unfortunately, sometimes you can find yourself working with a fine person with limited teaching skills and a rigid ideology. That can complicate matters.

Teaching a course, by yourself, is the easier and often more satisfying option.