(Trent Nelson  |  The Salt Lake Tribune) Canyon View Elementary third grader Ellie Gorzny wearing a mask during class in Cottonwood Heights on Tuesday, May 18, 2021.(Trent Nelson  |  The Salt Lake Tribune) Canyon View Elementary third grader Ellie Gorzny wearing a mask during class in Cottonwood Heights on Tuesday, May 18, 2021.(Trent Nelson  |  The Salt Lake Tribune) Canyon View Elementary teacher Melissa Casper works with her third grade students in Cottonwood Heights on Tuesday, May 18, 2021.(Trent Nelson  |  The Salt Lake Tribune) Canyon View Elementary third grader Michael Wight wearing a mask during class in Cottonwood Heights on Tuesday, May 18, 2021.(Trent Nelson  |  The Salt Lake Tribune) Canyon View Elementary third grader Brody Ernest wearing a mask during class in Cottonwood Heights on Tuesday, May 18, 2021.(Trent Nelson  |  The Salt Lake Tribune) Canyon View Elementary teacher Melissa Casper works with her third grade students in Cottonwood Heights on Tuesday, May 18, 2021.(Trent Nelson  |  The Salt Lake Tribune) A sign encouraging masks and hand washing at Canyon View Elementary in Cottonwood Heights on Tuesday, May 18, 2021.(Trent Nelson  |  The Salt Lake Tribune) Canyon View Elementary teacher Melissa Casper works with her third grade students in Cottonwood Heights on Tuesday, May 18, 2021.(Trent Nelson  |  The Salt Lake Tribune) Canyon View Elementary third grade students wear masks in class, in Cottonwood Heights on Tuesday, May 18, 2021.