Instructions
Click on the Geography classroom door. At the Plane Settings screen, set the paper type to 120 lb/ft^2, choose the left plane design, turn wing tips off and set the elevators to 10 degrees. Click Start. Click and drag the plane back to a position where its tail is just touching the map on the wall and slightly to the right of the southern tip of Africa. Release the airplane to launch it into the blackboard and move on to the next classroom. If you miss, retry and adjust your throw slightly until you succeed. Click OK.
Click on the History classroom door. Set the paper type to 110 lb/ft^2, choose the rightmost plane design, turn wing tips on and set the elevators to 5 degrees. Click Start. Click and drag the plane back so the back of its center line is just below the lower left corner of the painting on the wall. Release the plane to launch it, adjusting your throw as necessary until you succeed. Click OK.
Click on the Math classroom door. Set the paper type to 120 lb/ft^2, choose the rightmost plane design, turn wing tips on and set the elevators to 6 degrees. Click Start. Click and drag the plane back until its lower right corner is almost touching the left edge of the inner white area of the diagram on the wall. The distance between the corner of the plane and the lower edge of the white area should be about the same as the width of the gray border around the white area. Release the plane to launch it. Retry as needed, adjusting your throw until you succeed. Congratulations!