Ciarra noticed that her grandmother's 4 cookie jars were starting to become empty. In fact, one jar only had 1 cookie in it! The mean (average) number of cookies in all the jars was 3. How many cookies could have been in the other jars? Drag cookies into the other jars so that the mean is 3. Explain your thinking using the or tools. Extra Challenge: Can you rearrange the cookies so that the mode number of cookies is 1?