Using Data to Inform Instruction: Solve the Right Problem

When schools talk about using data to inform instruction, the focus is almost always on identifying where the gaps are.  And that part matters.

It’s important to know where students are struggling, but what often gets missed is what those gaps actually require of us as educators.

Because not all gaps should be solved in the same place—and that’s where things tend to break down.

Different Gaps Require Different Responses

If you look closely, not all gaps found in the data are pointing to the same kind of problem.

Some gaps show up across classrooms and over time, while others are tied to a specific lesson. Some are about a single skill students haven’t quite mastered yet. And then there are those that show up in the moment, while instruction is happening.

The mistake we often make is treating all of those the same. The shift is in learning to recognize what kind of gap you’re looking at and responding accordingly.

Overarching Gaps → Curriculum

Sometimes the data reveals a pattern that’s bigger than one classroom or one lesson.

You might see it across multiple sections of the same course, across a grade level, or even repeating year after year.  

In those cases, reteaching the content again won’t fix it because the issue isn’t instructional—it’s structural.

This signals that the work has to move upstream into the curriculum itself.

That might mean adjusting the curriculum including how content is sequenced, how a skill is introduced the first time, or how you clarify what students are actually expected to master before moving on.

These aren’t quick fixes. But they’re the kinds of changes that prevent the same gaps from showing up again and again.

 → If you're seeing gaps like this in your school and want a practical, step-by-step way to assess your curriculum, you might find Evaluating Curriculum Effectiveness helpful.

Standard-Level Gaps → Lesson Design

Other times, the gap is more contained.  It’s something that shows up within a specific standard but not across everything students are doing.

That usually points to how the lesson was designed.

• Maybe the modeling named the steps, but didn’t make the thinking behind those steps visible.

• Perhaps students were asked to work independently before they had enough time to process.

• Or the learning target wasn’t clear enough for students to understand what they were actually working toward.

In these cases, the curriculum is likely fine and the adjustment needs to happen inside the lesson itself, specifically in how the skill is introduced, how it’s broken down, and what students are doing while they’re learning.

→ For a closer look at why well-planned lessons can still miss the mark, you might like High-Impact Teaching Strategies: What School Leaders Should Look for in Classrooms.

Skill-Level Gaps → Targeted Practice

Within every standard are smaller, teachable skills that students need in order to be successful.  And this is where the data becomes much more precise.

You might see that students understand the general idea, but struggle with one part of the process. Maybe they can identify evidence, but not explain why it matters. Or they can solve a problem, but not justify their reasoning.

That doesn’t call for reteaching the whole lesson. It calls for focused practice.  This is where small group instruction becomes powerful as a response to a specific need.

Students get targeted support on the exact skill they’re missing, a chance to practice it with guidance, and time to build confidence before moving on.

→ To learn more about what makes small group work high-impact, head over to High-Impact Small Group Practices for Reading & Writing.

Check For Understanding (CFU) Gaps → Immediate Instructional Response

And then there are the gaps that don’t show up in a report at all—they show up in the moment.

A quick check for understanding shows that a portion of the class isn’t with you yet, or a student explains their thinking and you realize something is off.

That’s not something to come back to later. It’s something to respond to while the learning is still happening.

Sometimes that means pausing and reteaching in a different way. Other times it’s providing quick, targeted feedback, or moving one group forward while pulling another group back for support.

This is the part of instruction that’s hardest to plan for and often the most important part to get right.  It’s where teaching becomes responsive instead of scripted.

Using Data to Inform Instruction: What This Looks Like in Practice

When these distinctions are clear, the work starts to feel different.

Teachers aren’t trying to fix everything at once. They’re making more deliberate decisions about what needs to happen next.

They can look at a set of data and ask:

• Is this something I adjust in tomorrow’s lesson?

• Is this something students need more practice with?

• Is this something I need to respond to right now?

• Or is this something bigger that needs to be addressed beyond my classroom?

That level of clarity actually simplifies their work because it narrows the focus and makes the next step more obvious.

The Leadership Shift Behind This Work

In many schools, the expectation stops at “analyze the data.” But analysis alone doesn’t create results.

The real shift is helping teams move to a more precise question: What kind of gap is the data showing us and what should we do about it?

When that question becomes part of how teams operate, the work across the building starts to feel more connected.

Curriculum conversations become more focused. Instructional decisions become more consistent. PLC time becomes more purposeful because teams are working from a shared understanding.

And over time, the system starts to feel aligned instead of fragmented.

Final Thoughts

Data on its own doesn’t change instruction, and even strong analysis doesn’t guarantee better outcomes.

What makes the difference is how clearly schools define the response.

When every gap is treated the same way, it’s easy to end up doing a lot of work without seeing much change.

But when leaders and teachers are clear on what different types of gaps found in the data actually require, the response becomes more aligned and impactful.

That’s when you start to see consistency—not just in instructional planning, but in what students are able to do.

👉 Want done-for-you professional development tools to strengthen this work?

Inside the Behind the Desk membership, you’ll find ready-to-use PD slide decks and aligned leadership tools — plus get new time-saving resources each month and a live coaching option.