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Into the Exponential Distribution
16 to 18
Get into the exponential distribution through an exploration of its
pdf.
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AP Train
16 to 18
An arithmetic progression is shifted and shortened, but its sum remains the same...
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Towards Maclaurin
16 to 18
Build series for the sine and cosine functions by adding one term at a time, alternately making the approximation too big then too small but getting ever closer.
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Universal Time, Mass, Length
16 to 18
Can you work out the natural time scale for the universe?
problem
Favourite
Times of Day
5 to 7
These pictures show some different activities that you may get up to during a day. What order would you do them in?
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Favourite
Fractional Triangles
7 to 11
Use the lines on this figure to show how the square can be divided into 2 halves, 3 thirds, 6 sixths and 9 ninths.
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Favourite
Wonky Watches
7 to 11
Mandeep's watch loses two minutes every hour. Adam's watch gains one minute every hour. Can you work out what time they arrived at the airport?
problem
Favourite
Take Your Dog for a Walk
7 to 11
Use the interactivity to move Pat. Can you reproduce the graphs and tell their story?
problem
Favourite
Torn Shapes
7 to 11
These rectangles have been torn. How many squares did each one have inside it before it was ripped?