
“Which one does not belong?” Erin Cleary asks her fifth graders, pointing to four prisms on a screen at the front of her classroom on the South Side.
To find the answer, “think time” begins.

“Which one does not belong?” Erin Cleary asks her fifth graders, pointing to four prisms on a screen at the front of her classroom on the South Side.
To find the answer, “think time” begins.