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'Biscuit Decorations' printed from  Show menu  Biscuit
Decorations  Andrew decorated $20$ biscuits to take to a party.
He lined them up and put icing on every second biscuit.  Then he
put a cherry on every third biscuit.  Then he put a chocolate
button on every fourth biscuit.  So there was nothing on the
first biscuit.  How many other biscuits had no decoration? Did
any biscuits get all three decorations?  Why do this problem?
This problem fits in well with counting and skip-counting
(counting by twos etc.) and can be solved by physically
modelling the biscuits and decorations with whatever objects are
convenient. It is a good opportunity for children to choose the
way they represent the problem in order to solve it. It may also
be appropriate to introduce vocabulary such as "multiple".
Possible approach  An important element in understanding the
problem is the language of ordinal numbers, so 'warm-up'
activities which involve using the concepts o