A teacher, no matter how good, has to give this one-size-fits-all lecture to 30 students -- blank faces, slightly antagonistic -- and now it's a human experience, now they're actually interacting with each other.
ha d'impartir una classe de talla única a 30 alumnes, cares en blanc, mirades contradictòries, i ara és una experiència humana. Ara interactuen entre ells de debò.