Good for those eco-minded students at Piney Branch Elementary School, in Takoma Park, who want to practice what is preached to them regarding the environment and disposable foam trays [“Foam fight,” Metro, Dec. 9].

I attended in the 1960s a school not far away from Piney Branch, Oak View Elementary. A classmate and I had the job and privilege in fifth grade of collecting all the school-lunch plates and trays, scraping off the leftovers and taking the plates and trays on a cart to the steaming kitchen to be washed. It was an unintentionally fun job, allowing us to make sloppy towers out of the leftovers, but it also taught us a lot about waste and efficiency. An added bonus was the new respect we felt for the adult workers in the kitchen.

Harise Poland-Wright, Silver Spring