Order the Changes
Age 7 to 11
Challenge Level 
If you find this difficult try using just one set of cards at first.
You could choose one card (any card) to start with. Then pick a second card. In what order do you think these two cards might go? Can you now fit a third card into the sequence?
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In Order
Can you rank these quantities in order? You may need to find out extra information or perform some experiments to justify your rankings.
What Is the Time?
Can you put these times on the clocks in order? You might like to arrange them in a circle.