Peer discussion is a structured practice which encourages developing ideas, opinions and understandings, both individually and collaboratively. Peer discussion involves students discussing concepts or ideas in small groups to ensure deep understanding. By following the steps of this practice students have a chance to think, express, listen and then rethink individually and as a group. Students who’ve actively argued for and explained their understanding retain their knowledge longer. When using peer discussion in the classroom, students also gain a sense of confidence in their ability to explain their opinions and explore further complex topics. Polling allows students to create a meta-cognitive understanding of their learning process.