Older children might use a highlighter pen to mark and emphasise the most useful parts of the problem.
By "method" we mean the means used to get an answer.
This will generally involve one or more Problem Solving Strategies. Although we have listed the Four Stages of Problem Solving in order, for difficult problems it may not be possible to simply move through them consecutively to produce an answer.
Third, in looking back and thinking a little more about the problem, children are often able to see another way of solving the problem.
This new solution may be a nicer solution than the original and may give more insight into what is really going on.