When the classroom gets loud it seems only natural to raise your own voice. But this is not the best approach, says UCLA’s Rebecca Alber, writing for Edutopia, because “the students will mirror your voice level.” “Use a normal, natural voice,” is the first of five tips she recommends. Others include, “Speak only when students are quiet and ready,” “Use hand signals and other non-verbal communication,” and, not surprisingly, “Address behaviour issues quickly and wisely,” and “Always have a well-designed, engaging lesson.”