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Is there a quick way to work out whether a fraction terminates or recurs when you write it as a decimal?
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Skippy and Anna are locked in a room in a large castle. The key to that room, and all the other rooms, is a number. The numbers are locked away in a problem. Can you help them to get out?
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Players take it in turns to choose a dot on the grid. The winner is the first to have four dots that can be joined to form a square.
Good questioning techniques have long being regarded as a fundamental tool of effective teachers. This article for teachers looks at different categories of questions that can promote mathematical thinking.
Progression from natural frequencies to proportions to the multiplication rule, and hence to probability trees.
This second article in the series refers to research about levels of development of spatial thinking and the possible influence of instruction.
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There are lots of ideas to explore in these sequences of ordered fractions.
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Here is a machine with four coloured lights. Can you make two lights switch on at once? Three lights? All four lights?
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