Own the Re-Do: 3 Reasons Why

Sometimes as a teacher we just need to know that we can re-do or try, again. Here are just three reasons why:
1. Sometimes it doesn't work.
2. Sometimes you have off days.
3. Sometimes you need to take a different approach depending upon the class, class size, students in the class or not in the class that day, the time of the year, month or week, and ....see where I'm going with this?