The document provides an introduction to the four skills of language: listening, speaking, reading, and writing. It discusses how each skill is traditionally taught and their integration in real life. It then describes how the document separates the skills for the purpose of organizing learning activities and assisting teachers. Each skill is broken down into sub-skills and specific activity methods are provided to target each sub-skill. The document aims to provide teachers with a range of possible language learning activities without requiring they use all of them.