Though I don’t usually have writer’s block I do get stumped with the best thing to do in a class. Teaching is an act of both creativity and observation, the teacher must know the students and how to present the material so that they are engaged. Sometimes, when the rubber meets the road, the engine grinds to a halt.
It’s always easier to think of an idea for another person than yourself. That is an old truism I heard from a teacher once. She was right, and to help yourself it might be useful to start listing all the different tools (games, activities, warm ups, etc.) you can think of on a notepad. The more you write the more you will remember things you did in the past. Even if it didn’t work for that class last time, it might work for this class so write it down. The more you right the more chance you will be able to overcome a block of the “what to do” sort.
Teaching is a challenge as much as it is a joy. It is focused energy, logical simplicity, and at times madness. I hope you are tackling the job with a serious attitude that is willing to laugh at yourself, because you will fail (but your students need not!). Good luck comrades.
Keep writing, and teaching-yeah I said it!