How to Teach Writing, Not Just Assign It: A Research-Based Approach for K–8 Classrooms

I want to start with something I think many of us know but don’t always put into practice: there's a real difference between assigning writing and teaching it. When we assign writing, we give students a task and hope they write something of merit. When we teach writing, we give them the knowledge, the strategies, and the supported practice they need to grow as writers over time.

Those are two fundamentally different things, and right now, too many of the core programs and supplemental resources in our classrooms reflect the first approach and not the second. They support reading instruction well. But even when writing is included, it rarely goes as far as the research says it should.

Many popular core programs define writing narrowly: writing in response to reading, short paragraphs to demonstrate comprehension, the five-paragraph essay. There's also a heavy emphasis on sentence- and paragraph-level work, which matters, but is only one piece of good writing instruction. Here's a question worth sitting with: if you held your core program's writing components up against the full body of research on effective writing instruction, how complete a picture would you find?

What the Research Actually Says

Two free, publicly available practice guides from the Institute of Education Sciences (IES) What Works Clearinghouse, developed for elementary writers and secondary writers, synthesize the evidence and lay out clear principles for writing instruction.

The first research-based suggestion relates to time. Writing should happen daily and be balanced with reading instruction in terms of classroom time. Graham's 2017 meta-analysis found that when writing is taught in balance with reading, outcomes improve for both — not just writing, but reading as well.

The second principle is process. Students should learn and use a writing process, meaning writing shouldn't routinely be completed in a single sitting. When students plan, draft, revise, and edit, we have opportunities to teach strategies that develop focus, organization, elaboration, word choice, and conventions. When assignments are designed to be finished quickly, we may inadvertently send the message that writing is more about output than craft.

Third, students need to write for a variety of purposes and across genres and subject areas. Science notebooks, history responses, math explanations, personal narratives, persuasive letters, research reports, stories, poems. Writing for the teacher to demonstrate learning, sure, but also writing to persuade and entertain audiences of their choosing.

Fourth, assessment should drive instruction. Teachers need to look closely at student writing, evaluate it against skill progressions, and use that information to form small groups and help students develop their own goals — just as we do in reading.

Fifth, explicit instruction matters. We can't assume students will absorb good writing moves from exposure to mentor texts alone. Explicit instruction means naming what you're teaching, modeling it, guiding practice, and gradually releasing responsibility to students.

And sixth, writing should happen in community. Students need opportunities to collaborate throughout the process: brainstorming with others, offering and receiving feedback, talking through ideas, and more.

Where Programs Fall Short

Most core programs touch on some of these elements some of the time, but few address all of them comprehensively. Programs focused heavily on writing in response to reading often neglect genre variety and authentic purpose. Those that emphasize grammar and sentence work frequently don't support process or composing whole pieces. And almost universally, programs do a better job of telling teachers what to assign than giving them the tools to assess student writing and respond with targeted, explicit instruction.

Bringing the Research to Life

Start with strategies. Explicit writing instruction is most powerful when teachers have a large repertoire of strategies (step-by-step how tos for writing) that are organized by goals, skills, and stages of the writing process, so they can teach the right thing to the right writer at the right time. A writer who struggles to elaborate needs something different from a writer who can't yet organize their thinking. Having a robust collection of strategies organized across process, genre, and grades K–8 means you're never stuck teaching the same whole-class lesson to every writer (Serravallo, 2017).

Next, use skill progressions to assess writing, adapt lessons to student needs, and monitor progress. When progressions describe growth in micro-steps, assessment becomes actionable. We can look at a piece of student writing, identify where that writer is, and know what they're ready to work on next. That information can drive goal-setting and targeted small group instruction in writing, just as it does in reading (Serravallo, 2020).

Finally, there are specific lesson structures to rely on — interactive and shared writing, guided inquiry, guided writing, and strategy lessons — each serving a different purpose and offering a different level of scaffolding. Concrete lesson plans and the chance to see them in action makes it far easier to imagine doing this work in your own classroom (Serravallo, 2020).

An Invitation to Reflect

With an eye toward comprehensive, research-based writing instruction, consider: where are your core program and other resources strong? And where might you need to supplement?

If you want to get started with concrete strategies, download a few to try now.

If you want to learn more about assessment-driven writing instruction, download this sample chapter to see what it looks like in practice and give it a try in your classroom tomorrow.