connecting coins with quantities

	given a number of pence [1,2,5,10,20,50,100,200]
	in a certain permutation, link it to an arrangement of coins
	("connecting coin icon with decimal number")	
	
	display the coins with heads rather than tails 
	("connecting numerical value on coin with decimal number")
	
	set up coinlist so that when you add a number to it a coin appears

	quiz: yes/no correct match decimal number to coin
	
	knowing whether on decimal number is less than or equal to another
	
	quiz: yes/no correctly compare decimal numbers	
	quiz: yes/no correctly compare decimal number with amount
	quiz: yes/no correctly compare coin with amount
	
	31 style game
		- players take turns to add coins to a list
		- try not to be the player who puts the totalover amount
		
	sequence coins in arbitrary order
		given an amount compare with each coin in sequence in turn
		
	note sequence of comparisons
	
	sequence coins in order of ascending value
		given an amount compare with each coin in sequence in turn
		
	identify n-th coin in the sequence of ascending values
		("connect value of coin with an index in a sequence")

	quiz: map n from 1 to 8 to a coin from 1p to 2 pounds
	
	learner defines a function/mapping in this way