A Reflectionon the Teaching Model of“Efficiency First ”Under the ‘Efficiency First’Teaching Model Explore a campus that can ‘waste time’.We firmly believe that‘wasting time’ mindfully is the best way for adolescent students to release stress.The separate the concept of‘school’and‘campus’,redistribute ‘efficiency’ on the basis of constant total space efficiency We make the ‘school’ responsible for teaching, being as ‘compact and efficient’ as possible thus allowing ‘campus’ to partially become ‘low efficient’ or even ‘inefficient’ ,Being a place where students can ‘waste time’mindfully.