Cute, right? But beyond that, just seeing this on the board made two things very clear to me. I know that this teacher understands the power of visual representations and she has clearly established routines for minimizing interruptions. I did indeed see children using the signals as I was in the room, so she is clearly using the system she put in place.
Scottish oatcakes. These are the standard measurements I use: 3 cups old fashioned oats,1/2 tsp baking powder, 1 cup boiling water (buttermilk tastes better), 3 tbs butter, 1/2 tsp salt. Preheat oven to 350. Bake 20 minutes.