I particularly like the quick questioning technique of using and... and... and... as you pass between students to encourage them to come up with lots of ideas.
To encourage higher ordering thinking, you can change to because... because... because...
The beauty of this, it seems, is that you can switch between and / because / because.. because depending on which student you are asking to promote different levels of thinking on any given topic.
Here's how I might use it in a Pythagoras / Trigonometry question.
Stretching it even further are the extra questions in the boxes around the edge.
