The 29-year-old actor worked with the show's designers to help fix up the Brooklyn home of his childhood drama teacher ... PEOPLE got an exclusive sneak peek at the emotional episode, above ...

The teachers down at Abbott Elementary are ready ... p.m. ET on ABC and is also available to stream on Hulu. Watch the sneak peek below. More from Billboard ...

The teachers down at Abbott Elementary are ready to sing their hearts out on tonight’s (March 12) episode, as seen in a brand new preview video. In the minute-and-a-half clip shared exclusively ...