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Summary for Educators
Original Article:
Author: Dr. Catlin Tucker Source: CatlinTucker.com Date: October 6, 2026
Topic: Instruction & Pedagogy | Differentiation | Formative Assessment
Even the best curriculum cannot anticipate the learning needs of every student in a classroom. Effective teachers must continually adjust instruction based on what students know, where they struggle, and what they are ready to learn next.
Dr. Catlin Tucker argues that differentiated small-group instruction is one of the most powerful ways to make these adjustments without sacrificing academic rigor. Rather than delivering identical lessons to every student, teachers can use formative assessment evidence to organize flexible groups around specific instructional needs.
Tucker identifies three approaches: providing different levels of support for the same goal, offering different entry points toward the same standard, and addressing entirely different instructional needs within a unit.
The key is that differentiation should not mean permanent ability grouping or lowering expectations. It means using professional judgment and evidence of learning to ensure every student receives the instruction needed to make progress.
Students work toward the same learning objective but receive different amounts or types of assistance.
For example, in a reading lesson focused on making inferences:
One group independently analyzes a text and selects supporting evidence.
Another receives vocabulary support and guided discussion.
A third benefits from teacher modeling before practicing with a partner.
The objective remains the same, but the scaffolding changes.
Students work toward a common academic standard but need instruction in different component skills.
Consider a lesson on using textual evidence:
One group practices identifying relevant evidence.
Another learns to distinguish strong evidence from weak evidence.
A third concentrates on explaining how evidence supports a claim.
Teachers identify where students are along a skill progression and provide instruction targeted to that point.
Sometimes students need entirely different lessons.
During a science unit, for example, one group might need to correct a conceptual misunderstanding, another might need help interpreting graphs, and a third might need guidance constructing evidence-based explanations.
Rather than reteaching the entire lesson, teachers respond directly to the needs revealed by student work.
Small-group instruction is most effective when groups are formed from evidence rather than assumptions.
Exit tickets, classroom conversations, student work, and brief assessments help teachers determine who needs additional guidance, who needs a different explanation, and who is ready for an extension.
A student who needs intensive support today may be ready for independent work tomorrow. Group membership should change as learning progresses, avoiding permanent labels that limit opportunities.
For principals and instructional leaders, Tucker's article offers an important distinction: Differentiation is not simply giving students different assignments. It is making intentional instructional decisions based on evidence of learning.
Many classrooms still rely heavily on whole-group instruction, even when assessment results show substantial differences among students.
Small-group teaching allows teachers to concentrate their time where it can make the greatest difference while maintaining access to grade-level curriculum.
However, effective implementation requires more than encouragement. Teachers need manageable routines, appropriate independent learning activities, access to formative assessment information, and opportunities to plan collaboratively.
School leaders should also recognize that differentiated instruction is not an additional program. It is a way of making existing curriculum more responsive to students.
1. Make differentiation a focus of instructional conversations. During observations and coaching, ask how teachers are identifying and responding to different learning needs.
2. Encourage short, purposeful small-group lessons. Groups should address clearly identified needs rather than become another permanent classroom structure.
3. Protect collaborative planning time. Give teachers opportunities to analyze student work together and identify the next instructional steps.
4. Support effective classroom routines. Students need meaningful independent or collaborative tasks while teachers work with small groups.
5. Look for evidence of progress. Evaluate differentiation through what students learn, not simply whether students are seated in groups.
How often do teachers in your school use assessment evidence to change what happens next in their classrooms?
And when you visit a classroom, are you looking primarily for evidence that the teacher is delivering the planned lesson—or for evidence that the teacher is adjusting instruction to meet actual student needs?
The essential leadership lesson: Great teachers do not merely deliver curriculum. They continuously interpret student learning and adjust instruction accordingly.
Source: Tucker, C. (2026, October 6). Differentiated Small-Group Instruction: 3 Ways to Respond to Student Needs. CatlinTucker.com. This is an interpretive summary for School Leadership 2.0.
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Prepared with the assistance of AI software OpenAI. (2026). ChatGPT (5.2) [Large language model]. https://chat.openai.com
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