Mrs. Ruhnke introduced a new “closure” strategy to her fifth grade social studies students. Closure is the act of reviewing & clarifying the points of a lesson. This particular closure strategy is called “Snowstorm.” This strategy consists of students writing down what they learned on a piece of scratch paper and wadding it up. On a given signal, they throw their paper snowballs in the air. Then each student picks up a nearby response and reads it aloud.