The document introduces a Twitter Mandarin School class, outlining the teacher's background working in technology and charity, as well as introducing the students. It provides 3 class rules of no tweeting during class, following the teacher to repeat lessons, and no pressure or memorization. The purpose is to build interest in learning Mandarin Chinese. It then gives examples of basic Chinese phrases for "I love you", "I want", and "ice water" shown in characters and pronunciation.