The print version allows teachers to use the problem with their students without giving the students access to the archived answers.
Teachers can use the link to the archived problem to get ideas about student thinking.
The Hispaniola Water Shortage problem can be challenging as students attempt to find all the exact amounts of water they can measure using only two measuring containers. The goal is for students to investigate some properties of even and odd numbers, particularly what happens when you add them. Please email us. Another possibility is to look at parity in the case of multiplication, or even subtraction and division, instead of addition.