Two first grade students talk in the back of class at the Green Mountain School last month in Woodland, Wash. The CDC’s current guidance for schools recommends seating or desks be “at least 6 feet apart when feasible.”

WOODLAND, WA – FEBRUARY 18: Two first grade students talk in the back of class at the Green Mountain School on February 18, 2021 in Woodland, Washington. Washington state loosened in-person learning guidelines in December, sending elementary and middle school students back to the classroom a few days each week. (Photo by Nathan Howard/Getty Images)