(Step 12) Playing the Course for Par

"At our school inventions exhibit we had people 
try the courses.  We also had our classmates 
test out the courses.  Next the first graders 
tried the courses.  Every time somebody tried 
a course we counted the number of strokes it 
took to get them to the hole.  Then we 
totaled up all the number of strokes and 
divided that number by the number of people 
that played the course.  That gave us the par 
for our course."