I couldn't do it!
Try as I might, words just spewed out of my mouth during my 45 minute classes. Each class, I'd vow to do better. At the end of each class, I'd silently brainstorm ways to cut down my word count. My strategies included: continue to post the learning goals but have a student read them, have the instructions already on a board, have every conceivable action as a gesture and just mime what I needed or have the actions on a board and just point to them. I even started to get desperate and rationalize cheats to myself like, "If I already said it, I don't have to count those words if I repeat it for a student who was out of class at the bathroom." The revelation was pathetic and wonderful. I talk too much. End of story.
So now comes part two. Having realized that I can't limit myself to 100 words, I will continue to try. I will continue to try my best NOT to be the person who does the most talking in the room. I am firmly convinced that less of me talking and more of students talking is going to be the game changer. We are going to get there... it just might take a little longer than I thought. If you haven't ever tried something similar; limiting your lesson to 100 or so words, I strongly suggest it. You don't need fancy technology, the collaboration of a colleague, the funding behind a full scale study; its beauty is in its simplicity. The results are just between you and your classroom walls (and your students if you choose to reveal your plan to them). You might discover some interesting results. Let me know how it goes.