As a math teacher, I have reached the point where I refuse to calculate student grades. They are required to determine their own GPA according to my grading system. Hence they must learn how to find means and percentages and answer their own what-if questions. Using their own grades as a motivator, we discuss weighted averages, means, medians, and modes. After each test, I post the mean, median, and modes of the grades. We then discuss what these different averages mean about the test scores. When they bring in their mid-term progress report forms, they get a grade based upon correctly determining their mean grade and filling in the form - it saves me time and gives them practice in statistics.
Marge Cotton firstname.lastname@example.org Eureka Springs High School