Looking Back: Upper School science teacher Dan Ertl tells quirky anecdotes of his high school days

Diane Huang

Upper School science teacher Dan Ertl sits in his office next to the Earth Science classroom. “Let’s go back to the year 1968,” he said.

Pausing every so often to chuckle, Upper School science teacher Dan Ertl describes a paper tape “party,” a potato stuck in the tail pipe of a bus, and more from his high school memories: