(1) School band director In the US, public school band directors are generally either music education majors or education majors with a minor in music.Thus they fulfill the university's general requirements in math, English, social sciences and sciences (biology, chemistry, etc.) and they have taken music education and general education course that allows them to graduate.
The clear plastic tri-folds do not seem to cushion the eggs as well nor insulate as much as the foam. Pulp cartons are possibly more environmentally friendly being made of paper and all, but they cannot be cleaned. Once they get dirty there is nothing to be done but toss them.
Chicken egg sizes. Medium white eggs in carton. Chicken eggs are graded by size, for the purpose of sales. The egg shell constitutes about 13% of the weight of the egg.