Young students sitting on the floor in a early childhood classroom. Two best friends sat at a small wooden table planning a party on the phone. Would they have cake or cupcakes? Both, they decided.

Two best friends sat at a small wooden table planning a party on the phone. Would they have cake or cupcakes? Both, they decided. But the dessert, like the party, was pretend. The girls were 4 years ...

Chalkbeat reports on how preschool has expanded into Colorado's elementary schools. - Rawpixel.com // Shutterstock Chalkbeat reports on how preschool has expanded into Colorado's elementary schools. - ...