Alex Hazlett/Undark
More from Alex Hazlett/Undark
![Preschool kids in masks in an ESL classroom](https://www.popsci.com/wp-content/uploads/2021/09/21/preschool-kids-masks-class-education.jpg?w=675)
COVID-19
COVID has made it tougher for some young kids to communicate COVID has made it tougher for some young kids to communicate
By Alex Hazlett/Undark
September 21, 2021
By Alex Hazlett/Undark
September 21, 2021