Preheat oven to 350 degrees. Place margarine in 2 quart oval casserole. Heat margarine til melted.
Combine flour,brown sugar, baking powder and salt, Stir in milk to make a batter. Pour batter over melted margarine in casserole dish. DO NOT STIR !!!!! combine berries and sugar. Spoon the berry mixture over top of batter. DO NOT STIR!!!!!!!Place foil in oven to catch spills. Bake at 350 degree for 1 hour.