The document discusses the process of conducting error analysis in language teaching. It outlines 8 steps for error analysis according to Sridhar from 1980, which include collecting data, identifying errors, classifying errors, and determining how errors disturb communication. Gass and Selinker identified 6 similar steps in 2008. The document also differentiates between errors and mistakes, and discusses how to identify, describe, and classify errors. It notes the importance of error analysis for understanding learners' development and providing targeted instruction to improve their language skills.