Cold calling is where most teachers stop with a name picker, and it is the least interesting use. Once you have a picker with daily rotations, weighted entries and verifiable seeds, it becomes a small fairness engine for the whole classroom. Ten uses, roughly in order of how much they change the room.
01 Participation that polices itself
Daily mode guarantees every student is called on once per day — the picker will not repeat until everyone has had a turn. Students stop calculating odds and start staying ready; the quiet third of the room gets the same airtime as the front row, without you playing favorites in either direction.
02 Discussion order, not just discussion victims
For seminar-style discussion, draw a speaking order instead of a single victim. Everyone sees the sequence upfront, prepares their contribution, and the seed proves the order was not engineered to bury anyone's idea last.
03 Weekly classroom roles
Line leader, materials manager, timekeeper, tech support: draw roles weekly with history across the term, so responsibilities rotate instead of sticking to volunteers. Weighted entries let you keep a student out of a role they physically cannot do (Name*0) without removing them from the pool.
04 Peer review and presentation order
Draw presentation sequence with session mode — everyone presents exactly once before reshuffling, ending both "can I go first to get it over with" negotiations and "you saved the best for last" suspicions. For peer review, pair draws from the pair generator with keep-apart rules for students who reviewed each other last round.
05 The trust ritual
Whatever you use it for, show the seed. One minute of "here is how you verify this at home" in week one buys a semester of credibility — and teaches a real lesson about randomness, probability and evidence in the process.