Simulations
	Caveats
		Expensive
		Limited for tactile experiences
		Complexity and uncertainty not always addressed
		Need balance between discovery and systematic learning
		Need to get contextualisation right
		Engagement with concept not just simulaiton
	Study systems not otherwise available
		Dangerous scenarios
			Health and safety issues
		Safe
		Remote use
		Size
			Too big
			Too small
		Can create idealised systems
		Too expensive
		can create systems which are physically impossible
			e.g vary accelaration with mass
	Do things not possible in real world
		Stop the unstoppable
		Slow down
		Speed up
		Can explore extremes
	Educational contexts
		Lectures
			Need to redesign interfaces
		Tutorial
			Use in conjunction with lab sheet
			record and replay to follow student's understanding
		Laboratories
			revision
			pre-practise
		Student creates simulation
		Assessment
			confirm or verfy knowledge
	Examples of current use
		Structures
			
		Stats
		Physiology
	Value
		Visual
		Dynamic
		Motivate
		Interactive
		Can show the big picture
		Can focus on key points
		Can determine critical variables
		Cheaper
	Educational value
		Exploration
			Change one variable at a time
		Experiments
			Can include errors
		Conceptual understanding
		Learning by doing
		Contextual knowledge
		For practice
		Find out the answer yourself
		Challenge preconceptions
		Compare real & simulated system