A teacher of English as a foreign language designs a dynamic lesson where students collaborate in small groups to address a real-world problem. Throughout this engaging activity, the learners negotiate meaning, ask clarifying questions, express their opinions, and work together to create a solution. The teacher does not pre-teach the target grammar but observes interactions and takes notes on linguistic difficulties. Following the activity, students reflect on their language use and explore different ways to articulate their ideas. Choose the approach that aligns closely with the teaching practice above.