(Leah Hogsten | The Salt Lake Tribune) Eighth grade math instuctor Pinyi Yao helps student Allie Jones find the right classroom on the first day of school. Pinyi Yao, 27, a Chinese National teaching 8th and 9th grade math welcomes his students on their first day of the school year at Oquirrh Hills Middle School, August 20, 2019 in Riverton.