Investigate how you can work out what day of the week your birthday will be on next year, and the year after...
Label this plum tree graph to make it totally magic!
Find all the ways of placing the numbers 1 to 9 on a W shape, with
3 numbers on each leg, so that each set of 3 numbers has the same
The GeoGebra applet below allows you to see how Alison's representation changes as the consecutive numbers increase. Move the slider to change the numbers.
If the GeoGebra applet does not load correctly you can save the GeoGebra file and open it using the free to download GeoGebra software.