Compare features of a long-ago school to a school today, naming both differences and at least one similarity.
Schools looked very different a long time ago. Many children learned in a one-room schoolhouse, where a single teacher taught every grade at once. Students often wrote on small chalkboards called slates.
Today, schools usually have a separate classroom and teacher for each grade, and students write on paper, whiteboards, or tablets. But some things have not changed: kids still learn to read and do math, and they still have a teacher and friends.
Mastery looks like: They can name multiple real then-and-now differences for schools, plus at least one genuine similarity.
Common stumbles: Assuming everything about the past was different, and missing that some things (learning, teachers, friends) stayed the same.