This document discusses language acquisition and its importance in education. It defines language acquisition as the process of learning one's native language and additional languages. Language is important for communication, mental development, and understanding other cultures. In 21st century education, students use language to learn about and share their own and other cultures. They understand how media influences language and culture. Technology like podcasts can help students practice language skills and receive feedback. Previous approaches relied more on rote learning while modern approaches use engaging technology to create less anxiety and more relevant learning.