Is there a best way to stack cans? What do different supermarkets
do? How high can you safely stack the cans?
An investigation involving adding and subtracting sets of consecutive numbers. Lots to find out, lots to explore.
Place the 16 different combinations of cup/saucer in this 4 by 4 arrangement so that no row or column contains more than one cup or saucer of the same colour.
This problem could be worked on in a group of about four. For more details about how you might go about doing this, please read the Teachers' Notes.