The document discusses the challenges a student named Mai faced in understanding his architecture teacher's lectures due to language barriers. Mai's first language was Thai and he struggled with conversational English. To help Mai, the teacher implemented three strategies: 1) speaking more clearly and using diagrams, 2) providing supplemental materials through dual coding with outlines and images, and 3) outlining and summarizing content through emails. These strategies helped Mai understand the material better and led to improved performance, as he went on to win an award by the end of the semester.