EVENT
SITUATION
CHOICE
PERSON
REASON
MEANS
PRESENT What is? Where/when is? Which did? Who is? Why is? How is?
PAST What did? Where/ When did? Which did? Who did? Why did? How did?
POSSIBILITY What can? Where/ When can? Which can? Who can? Why can? How can?
PROBABILITY What would? Where/ When would? Which would? Who would? Why would? How would?
PREDICTION What will? Where/ When will? Which will? Who will? Why will? How will?
IMAGINATION What might? Where/ When might? Which might? Who might? Why might? How might?

Weiderhold, C. (1993). Co-operative Learning and Critical Thinking. In Langrehr,
Better Questions, Better Thinking Book 2. Melbourne: Longman Cheshire.