Integrating skills in language teaching involves combining listening, speaking, reading, and writing within meaningful learning experiences, rather than treating them separately. Some ways to integrate skills include having students listen to dialogues and then discuss them, do information-gap activities where they converse to solve problems, and read texts to get insights to then produce their own writing. Other approaches integrate all four skills, like project-based learning where students research, present, and write a report on a topic. The document advocates for using authentic materials and integrating skills to mirror real-world language use and improve students' overall language ability.