Five places to put your class.

A working laboratory your students can pick things up in. There is no timer, no score and no wrong answer: the lab is a place to experiment, describe and reason out loud. Students grab equipment, combine materials and watch what happens. There is a character in the lab they can talk to directly: what they say appears on screen, and so does the reply.

Because nothing in the lab happens by accident, students have to say what they intend to do before they do it. That single constraint produces some of the most precise language of any environment in the collection.

Two connected spaces. The first is a professional kitchen with three working stations (eggs, salad, burgers) where students genuinely carry out the steps: turn on the stove, put the pan on, add the oil, break the egg, wait for it to cook. Get the order wrong and it does not work, which is what makes the language precise. The second is a bar with a bartender your students can talk to, stools, and tables to sit at.

It is deliberately a modern international kitchen rather than a rustic restaurant. Students from any background recognise the food, so none of the difficulty sits in working out the setting.

There is no timer and no score. The kitchen gives you procedure; the bar gives you conversation. Most teachers use both in one session.

An outdoor environment where students make choices together and live with them: crafting tools, fishing, building a fire. It is the richest of the three for content work (ecology, geography, resource use) and the one where disagreement is most productive, because every decision has a visible consequence.

A single student enters a world where the phones are talking. Messages, questions and challenges arrive on screen, and the only way anyone else finds out what they say is if the student reads them out.

That is the whole design. The explorer holds all the information and none of the answers; the class holds all the answers and none of the information. And the puzzles themselves turn out to be about language: from shapes and numbers to how many languages exist in the world, and how many of them are disappearing.

Your student is a private investigator. A necklace has been stolen from a mansion, the CCTV shows the burglar going in but never coming out, and the only other evidence is a torn blueprint of the house.

What follows is a chain of deductions across the mansion, a CCTV room, a hidden basement and eventually a police station. Each clue only matters if the explorer describes it accurately enough for the class to connect it to the last one, which is exactly the problem the lesson is built to create.