The Connecting STEM Teachers celebration event today (9 July) featured excellent presentations from teachers and students showing just what ‘blended’ STEM can achieve. The benefits of the interaction between science, mathematics and design & technology were clear for all to see. But, and it’s a big but, nearly all the examples were concerned with extra-curricular activities. In no way do I want to rain on Dominic Nolan’s parade here, his Connecting STEM Teachers Project is absolutely top notch but to impact on large numbers of students STEM needs to operate in the mainstream curriculum. Easier said than done some say but there are ways to achieve this and enhance attainment across the piece without disrupting the timetable. This is explained at length in Teaching STEM in the Secondary School Helping Teachers meet the challenge. What emerged at the celebration event was the impact of the EBacc on the KS4 option structure. It’s here that we need to focus our attention so that the offering to students encourages and enables those who are taking three sciences to also take design & technology. Option choice structures that facilitate this need to be developed and disseminated so that STEM in the main stream can become a reality rather than a wish. As always comments welcome.