Set up an imaginary line in the classroom, from ‘agree’ to ‘disagree’. When a statement is given, students should arrange themselves along that line depending on to what extent they agree or disagree with that statement.
To check understanding, students could then be asked why they stood where they did in English or in the target language. You could allow groups on the same points to work together, or have students work independently. They could have time to construct longer answers, or be put on the spot.
To stretch even further, the responses could simply be collected on papers and used on the board for more comprehension, accuracy work, or increasing vocab.
If you’re controversial enough , you might even collect enough for a mini-essay.