The Department for Business, Innovation and Skills' (BIS) Science and Learning Expert Group has recently released a report Science and Mathematics Secondary Education for the 21st Century. 

The report outlines five priority areas for improving STEM learning in schools and colleges;

1. Recruit more STEM graduates into teaching, then train and retain them
2. Improve the content and assessment of science and maths at GCSE and A-Level (including having expert groups advise on the design and development of qualifications and assessment)
3. Clearly differentiate the learning pathways available to young people
4. Integrate IAG into science lessons and enrichment, and develop HE and workplace links
5. Foster a commitment to excellence in science and mathematics in schools and colleges through accountability mechanisms and incentives. 

There’s a good article about the report on the BBC website.  You can see the responses from Schools Minister Iain Wright and Science and Innovation Minister Lord Drayson on the BIS website.