I recently had the chance to hear Doug Fisher and Nancy Frey speak about adolescent literacy. I’ve encountered their work before, but hearing them present it directly clarified something I’d been circling around in my own thinking. It also sharpened a distinction that I think gets lost in a lot of conversations about secondary reading instruction.

Here’s what landed.

Every Teacher Is a Literacy Teacher, But Not in the Same Way

Every teacher is responsible for literacy within their discipline. Not literacy in general. Not “reading strategies” that travel across subjects. Content teachers need to be experts in teaching the specific, particular ways that reading, writing, and thinking work in their content area.

That distinction is doing a lot of work.

What it doesn’t mean: every science teacher should be teaching students to find the main idea. Every history teacher should be running inference drills. That framing asks content teachers to deliver generic reading instruction, and it tends to produce resentment, confusion, and lessons that feel disconnected from the actual content.

What it does mean: a biology teacher is responsible for helping students read like a biologist reads. A history teacher is responsible for helping students approach a primary source the way a historian would. The literacy is inseparable from the discipline, because the discipline has its own ways of constructing and communicating knowledge.

Takeaway: Content teachers don’t teach reading in general. They teach how reading works in their field.

Reading Looks Different Depending on the Discipline

This is the heart of what Fisher and Frey call disciplinary literacy, and it’s worth sitting with.

In science, reading requires attention to cause and effect, to precision, to the relationship between systems. A small word—increases, inhibits, correlates—can carry enormous weight. Misreading it isn’t a fluency problem. It’s a disciplinary problem.

In history, reading is an act of sourcing and evaluation. Who wrote this? When? For what audience? What perspective is present, and what’s absent? These questions aren’t reading comprehension strategies in the generic sense, they’re the moves historians make, and students need to learn them as historians-in-training, not as test-takers looking for the main idea.

In mathematics, the density of symbolic language demands a kind of reading that has almost nothing in common with narrative. A single equation contains layers of meaning that a student needs to unpack slowly, precisely, with complete attention to what each element represents.

In ELA, reading attends to structure, voice, language choice, and theme. The texts themselves are often doing things that resist paraphrase.

These are not variations on the same skill. They are genuinely different ways of making meaning from text. Students need to learn all of them, and they can only learn them in the rooms where that kind of reading is actually practiced.

Takeaway: Students don’t just need to read more. They need to read differently depending on the discipline.

Knowledge and Literacy Aren’t Separate Lanes

Content knowledge and literacy development are interdependent. You can’t cleanly separate them.

This means science teachers aren’t adding literacy on top of science instruction. They are teaching science through literacy. The reading, the discussion, the writing aren’t supplementary activities. They’re the mechanism by which students simultaneously develop both the knowledge and the language of the discipline.

This has real implications for how we think about content classrooms. A history teacher who builds in time for students to discuss a primary source, debate an interpretation, or write a short argument isn’t doing literacy work instead of history. She’s doing both at once. In a discipline, that’s how both actually develop.

Fisher shares a finding that stopped me: in a large-scale study of fifth graders, adding just thirty minutes of content instruction per day (and removing the same amount of time from other activities) produced a fifteen percent standard deviation increase in reading scores. Not thirty minutes of reading strategy practice. Thirty minutes of content learning. When students know more, they read better. The relationship runs both directions, and content classrooms are a primary site where that knowledge gets built.

Takeaway: Literacy doesn’t sit beside content. It runs through it.

What Content Teachers Are Not Responsible For

This is a clarification I find most useful, but one that’s frequently missing from conversations about adolescent literacy.

Fisher and Frey are explicit: foundational reading skills (decoding, word recognition, fluency at the level of the individual word) are not the primary responsibility of content teachers. Those skills matter enormously for adolescent readers, including students who appear fluent but are still working harder than they should be to process print. But addressing them is specialized work, and placing it on a content teacher without training, tools, or time is neither fair nor effective.

What content teachers are responsible for: domain-specific vocabulary, comprehension within their discipline, and the discussion and writing that makes thinking visible. That’s a significant and meaningful scope. It just isn’t the same as teaching a student to decode.

This maps directly onto something I’ve been thinking about as two distinct lanes. Intervention is the place for the foundational work of automaticity, word recognition, and the underlying mechanics of reading. Content classrooms are the place for knowledge-building, vocabulary development, and disciplinary thinking. Both lanes matter. They serve different functions. And conflating them tends to underserve students in both directions.

Instruction Should Be Visible

Fisher and Frey are also consistent advocates for explicit, modeled instruction. Visible learning includes teachers thinking aloud, showing students what it looks like to approach a complex text in their field. Guided practice where students try the moves with support. Collaborative discussion that surfaces meaning and builds shared understanding. A gradual release of responsibility that gives students real scaffolding before they’re expected to work independently.

This matters especially for content-area reading, where students are often encountering not just difficult text but an entirely unfamiliar way of reading. Watching a scientist read a study, or a historian interrogate a source, is genuinely instructive, because most students have never seen it done, and they can’t approximate what they haven’t observed.

Volume and Support in Equal Measure

Students need significant reading volume: lots of text, across many contexts, over time. Wide reading isn’t controversial.

But there seems to be an assumption that volume alone is sufficient, or that struggle is productive regardless of its nature. Independent reading at frustration level isn’t building fluency or knowledge, it’s building avoidance.

What students need alongside volume is support: discussion around text, repeated exposure to ideas across multiple sources, scaffolding that makes the reading accessible enough to be meaningful. This aligns with something I’ve written about before: there’s a difference between productive difficulty and cognitive overload. The former stretches understanding. The latter shuts it down.

Zooming Out

Hearing Fisher and Frey brought into focus something I think our field has struggled to hold clearly: adolescent literacy isn’t one problem with one solution. It’s at least two distinct problems that require two distinct responses.

One is foundational. Some adolescent readers, more than we typically acknowledge, are still working too hard at the level of individual word recognition. That costs them. It consumes cognitive resources that should be available for comprehension, and it makes reading feel like labor in a way that compounds over time. Addressing it requires targeted intervention focused on automaticity and fluency.

The other is disciplinary. All adolescent readers need to learn how reading works in each content area. That requires content teachers who understand their discipline well enough to teach its literacy, and instructional models that make that thinking visible rather than assumed.

These two lanes don’t compete. They complete each other. A student who develops automaticity but never encounters disciplinary literacy will still struggle to think like a historian or read like a scientist. A student who builds content knowledge but never develops efficient word recognition will still spend too much cognitive effort on the words themselves.

Both matter. The question is making sure each is happening in the right place, with the right people, and the right tools.