B2 Upper-Intermediate - "I can discuss complex topics clearly"
What B2 sounds like: Extended, mostly natural speech. Students can handle abstract topics, weigh arguments, and express nuanced opinions. Grammar is mostly accurate. Vocabulary is rich enough for most topics, with occasional gaps. This is the level where conversation starts to feel genuinely interesting rather than effortful.
The real difficulty: B2 students often plateau. They're functional communicators but their language has stopped developing because they're managing rather than stretching. The challenge is pushing them beyond what's comfortable - into less familiar vocabulary, more complex argumentation, and more sophisticated discourse structure.
What works:
- Discussion questions that require argumentation and reasoning, not just preference
- Debate activities with structured argument requirements
- Role plays that require register shifts (formal/informal)
- Abstract hypotheticals: "If you had to choose between freedom and security..."
- Activities that require students to synthesise or evaluate rather than just describe
What doesn't work:
- Questions they can answer on autopilot (what's your favourite food, describe your hometown)
- Activities without a challenge mechanism - comfortable B2 students will cruise
- Feedback that focuses on minor grammatical errors rather than discourse-level development
C1 Advanced - "I can express myself fluently and spontaneously"
What C1 sounds like: Natural, fluent speech with a wide vocabulary range. Students can discuss abstract, cultural, and technical topics. They use idioms, complex structures, and sophisticated discourse markers naturally. The occasional error doesn't impede communication.
The real difficulty: C1 students are often bored in mixed-level classes and under-challenged in standard activities. They need discussion topics with genuine intellectual content, activities that reward precision over volume, and peer interaction with other high-level speakers.
What works:
- Abstract, philosophical, or ethical discussion questions
- Nuanced debate: not just "should X be banned?" but "to what extent is X's effect on Y determined by Z?"
- Analysis tasks: "What does this statistic actually mean? What are the flaws in this argument?"
- Authentic texts or scenarios as discussion triggers
- Peer discussion with other C1 students - matched pairing matters here
What doesn't work:
- Standard discussion questions that don't require precision or nuance
- Activities designed for lower levels - C1 students become passive or disruptive when bored
- Feedback on form rather than argumentation quality