This article for students gives some instructions about how to make some different braids.
Can you place these quantities in order from smallest to largest?
Can you rank these quantities in order? You may need to find out
extra information or perform some experiments to justify your
Mudslides, avalanches and earthquakes have much in common - they involve physical environment which had appeared quite stable and then suddenly become very unstable, often with devastating consequences.
In this game, students play a simple simulation game to investigate what causes equilibrium and instability in systems like these.
You need one person to be the Signaller, and two people to be Observers. The rest of the class are the Movers.
Try this several times, varying the roles.
There are several ideas here, and you may have ideas of your own. Whatever you do to develop the game, do it systematically, recording carefully what you do and what the results are.