The student-teacher brought us all into the back of the classroom and went over the recipe. It was elementary school and we were making metric brownies.
What's a metric brownie?
Same as a regular brownie, only using a recipe that uses metric measurements.
Perhaps some of you remember that, the movement in the early 1980s to get Americans to convert to the metric system. I have no idea if it was a serious move, if it was purely an educational move or what even happened to the supposed "movement."