At the very beginning of the show, Mr. Adler introduces himself, then stands behind his desk. In order from left to right on his desk are a pencil holder, a wooden nameplate that says ''Adler'' and a framed photograph of his late girlfriend. Adler picks up the photograph, is distracted by it, then puts it back down. When he does, the pencil holder is no longer on the extreme left of his desk.
During Mr. Adler's hallucinations about his wife's plane's crash, the plane can be seen exploding in midair. Following the explosion, the plane, totally intact, can be seen plummeting into the water.
A circular table saw blade will never protrude so far above the table that the hub comes out because the hub would obstruct the work piece. The hub always stays below the table so the work piece can be cut completely through.
"Tai bo" should be spelled "tae bo."
Mr. Adler tells Kenny to familiarize himself "with the jig saw over there", but Kenny is next seen working on a circular table saw (although this might be a character error - after all it is only Kenny's first day in shop class.)