The document discusses different approaches to using a student's mother tongue in an English language classroom. It argues that using the mother tongue can help students understand new concepts by relating them to what is already known. It also allows students to feel secure enough to ask questions and explain problems. However, there is a risk they will hear too little English. The document provides practical ideas for balancing mother tongue and English use, such as giving instructions in both languages or teaching classroom language phrases. The overall approach is to use English as much as possible while avoiding student confusion.