"Inquiry maths is a model of teaching that encourages students to regulate their own activity while exploring a mathematical statement called a prompt. "
A good set of pdf files for upper primary lower secondary. Uses prompts as starting point for pupil led enquiry.
3 students at Kingston Uni designed a maths trail around Waterloo Railway Station.
"Their trail is aimed at children in Key Stage 2 but the activities can be differentiated to suit different age groups. It can also be adapted to most railway stations in the country!" You will need to register with NCETM
"The NCETM Primary Mathematics Host Schools Project was a programme with the overarching aim of supporting the effective teaching of arithmetic in primary schools, with a specific focus on Years 3 and 4, and also of raising teachers' awareness of the importance of developing pupils' arithmetic proficiency." Networks of locally based CPD. Sept2012 - Spriong 2013
"In some countries, policies aimed at improving the quality of education focus on new curricula or structures of schooling rather than more complex issues of learning and teaching. The Education Futures Collaboration (EFC) aims to address the latter."