Curriculum development is the work of deciding what gets taught, in what order, over years — and the order is the part that carries the intellectual weight. Anyone can list what a subject contains. Working out that this concept cannot be understood until that one is secure, that this misconception forms here and has to be addressed before it hardens, and that a topic taught in year four and not revisited is a topic most students will not retain, is a different task and the one that determines whether a curriculum works.

We edit what curriculum developers, awarding bodies and education ministries produce — curriculum frameworks and subject specifications, scope and sequence documents, progression maps and learning trajectories, unit and scheme of work documentation, teacher guidance and subject knowledge notes, assessment specifications aligned to a curriculum, textbook and resource specifications for publishers, pilot and trial documentation, consultation drafts and stakeholder feedback analysis, implementation and rollout guidance for schools, professional development material for teachers, and equity and access reviews of curriculum content. Our editors check that the sequence is stated as a rationale rather than as a list.

The scope and sequence document is where the reasoning either exists or does not. Most are grids: topics down one axis, years across the other, cells filled. A grid records decisions and preserves none of the thinking, so the first time a school wants to reorder a unit for timetabling reasons, nobody can say which moves are harmless and which break something. We build these so each placement carries the dependency behind it — this unit assumes secure multiplicative reasoning from the previous year and will fail without it; this one may be taught in any order within the term; this one must precede that one because the misconception it addresses otherwise embeds. We make the revisiting explicit rather than implied, naming where each major idea returns and at what depth, since spacing is a design decision and is usually accidental. And we state what has been left out and why, because a curriculum defines itself as much by exclusions, and the ones that are not recorded get quietly added back by well-meaning teachers until the year is overfull again.

Everything you send is treated in confidence, including drafts under consultation and material before publication. We are editors rather than subject specialists or curriculum theorists, and we offer no view on what should be taught, on sequencing decisions or on assessment design. What we can do is make the rationale explicit and the documents usable by the teachers who inherit them.