I've just found that the entire text of this report can be found here; it may well be 30 years old but it seems as fresh and relevant as ever. I thought I would reproduce paragraph 243 below to make it even easier to find it:
"243 Mathematics teaching at all levels should include opportunities for
exposition by the teacher;
discussion between teacher and pupils and between pupils themselves;
appropriate practical work;
consolidation and practice of fundamental skills and routines;
problem solving, including the application of mathematics to everyday situations;
investigational work. "
More to come.