In one classroom at Gainesville Middle School last week, eighth-graders were working with a choreographer from the Woodruff Arts Center in Atlanta, perfecting dance moves for a video the students were creating. Down the hall, rising sixth-graders were making boats of different shapes and discovering which shape could hold the most pennies. Meanwhile, seventh-graders in another room were trying to figure out how characters they had created could escape a concentration camp during the Holocaust.