Some details are clearly needed earlier than others.
Consider the story Customer Purchases Items.
Early in its development, we need higher-level information; later we need more detailed decisions.
Please re-order these according to when the details are important (earliest on top) More instructions...
Before you finish ordering, you can press the Show Hint button to reveal how many of your answers are right/wrongwithout specifying which are in the right/wrong position. Remember, you can continue to order items after hitting this button.
After you finish ordering, you can press the Check Answers button to see author commentary, as well as a green border for items in the right position and a red border for items in the wrong position.