Why it works
The order in which things are taught is one of the most consequential and least examined decisions in instructional design. Learning is cumulative: new knowledge is understood and retained by connecting it to prior knowledge, and a concept is far easier to learn when the ideas it depends on are already secure. This means sequence is not a neutral administrative matter but a powerful lever on learning: a well-sequenced progression introduces each concept when students are ready for it, with its prerequisites in place, so that each new piece has something to attach to, while a poorly-sequenced one introduces concepts before their foundations exist, forcing students to grapple with new material while also missing the prior knowledge that would make it comprehensible. Yet sequence is frequently left to default, the order of the textbook, the order things have always been taught, the order that happens to feel natural, rather than deliberately designed around how the learning actually builds. Attending to sequence deliberately means thinking carefully about dependencies and progression at several grain sizes. Within a lesson: what must students understand before the next step makes sense, so the lesson moves in an order where each part is prepared by the one before rather than jumping ahead of its prerequisites. Across a unit: what is the logical learning progression, which concepts are foundational and must come first, which build on them, so the unit is a coherent build rather than a list of topics in arbitrary order. Across the year and beyond: how units connect, what each assumes from before and sets up for later. Several principles guide good sequencing. Identify prerequisites: for each concept or skill, what must already be in place for it to be learnable, and ensure those come first. Build from foundational to complex: establish the basic ideas securely before the ones that depend on them, resisting the temptation to rush to the exciting advanced material before its foundations hold. Order to minimize unnecessary difficulty: a good sequence means students are rarely trying to learn something while lacking what it requires, which reduces avoidable struggle and confusion. Connect the pieces: make the progression visible so students see how each new thing builds on the last, which aids both understanding and motivation. And revisit and interleave deliberately: sequence is not purely linear, since spaced return to earlier material and strategic interleaving strengthen learning, so good sequencing weaves review and connection through the progression rather than teaching each topic once and moving on. A couple of cautions: sequencing is not about rigid lockstep that ignores students, and the logical order of a discipline is not always the best learning order, so sequence should serve how students learn, not just the structure of the content. The workshop helps teachers treat sequence as a design decision, map the prerequisites and progression of their content, and order instruction so each piece is ready to be learned when it arrives.
The research: Research on learning progressions, prior knowledge, and instructional sequencing.
The run-of-show
Choose your slot. The agenda, timings, and length update to match.
The core activity: order instruction so each piece is ready to be learned
The heart of the session is treating sequence as a design decision, mapping prerequisites and progression, and ordering instruction so each piece has secure foundations when it arrives.
- Treat sequence as design, not default: learning builds on prior knowledge, so the order you teach in powerfully shapes how well students learn, and it should not be left to the textbook or habit.
- Map dependencies at every grain size: within a lesson, across a unit, and across the year, identify what must be understood before the next piece makes sense.
- Build foundational to complex: establish prerequisite ideas securely before the concepts that depend on them, resisting the rush to advanced material before its foundations hold.
- Connect and revisit: make the progression visible so students see how each piece builds, and weave in spaced revisiting and interleaving rather than teaching each topic once and moving on.
Facilitator notes
- Name sequence as a design decision; teachers often inherit the textbook's order without asking whether it matches how the learning builds.
- The core move is identifying prerequisites: for each concept, what must already be in place for it to be learnable, which then dictates order.
- Sequence is not purely linear; deliberate revisiting and interleaving strengthen learning, so weave review through the progression rather than teaching each topic once.
Adapt it
- Elementary: sequence foundational skills carefully, since so much later learning depends on early foundations being secure before moving on.
- Secondary: map prerequisites across units and the year so each unit's demands are prepared by what came before, not assumed.
- Any setting: question the inherited order, identify what each concept requires, and weave in spaced revisiting rather than teaching once and moving on.
Participant handout
One page for every teacher. Print it, or save it as a PDF.
Sequencing Instruction: order that builds
Make sequence a design decision: identify prerequisites, build foundational to complex, connect the pieces, and revisit deliberately, so each concept is ready to be learned when it arrives.
- A unit I want to sequence deliberately:
- The prerequisites each key concept depends on:
- My foundational-to-complex ordering:
- How I make the progression visible to students:
- Where I weave in spaced revisiting and interleaving:
Make it stick
Good sequence makes each piece ready to be learned. Close by setting the follow-up:
- Name a check-in: are concepts arriving with their prerequisites secure, or ahead of them?
- Bring one unit you resequenced and how it changed students' grasp.
- Keep questioning the inherited order; the textbook's sequence is not always how the learning builds.