In today’s newsletter: After decades of political tinkering, a new review of England’s national curriculum promises change without chaos – but can it really add without overwhelming?Good morning. I’m Martin Belam, and this is my first time in your inbox for First Edition – though you may already know me from Guardian live blogs, my Doctor Who obsession, and the increasingly silly Thursday news quiz I write.I’m also old enough to have been part of the first ever cohort to take GCSEs instead of O-levels, and that exam upheaval has been followed by decades of successive governments tinkering with how