Reasoning The locker problem

Date November
Class 8th grader
Teacher Joyce Cook

Locker problem.  This group hasn't had much experience with reasoning, so I gave them some specific instructions before I handed out the problem.  I made a form for them to use that represented the lockers, and rows for each person to make his changes.  Only 1 student of 13 was able to come up with the right lockers being open at the end of the problem.  One other student thought of the relationship between the numbers of lockers.  He recognized that each time two more were being added than the time before.