Differentiated Instruction interview questions

What a strong answer covers

• It means planning so that students working towards the same learning goal can access it and make progress from where they actually are, by varying content, process, product and the learning environment.
• Those variations respond to readiness, interest and learning profile, with readiness carrying most of the planning weight because it is assessable and it changes.
• It is not individualised instruction: thirty separate lesson plans is neither possible nor the aim. Most differentiation is a small number of deliberate routes through a common task.
• It is not permanently sorting students into high, middle and low groups and giving each a fixed diet, which is the practice differentiation is often confused with and which tends to entrench the gaps it claims to close.
• It is not simply giving faster students more of the same work, or slower students less demanding work.
• A strong answer connects it to universal design for learning: designing the lesson from the start with multiple means of engagement, representation and expression reduces how much retrofitting is needed for individual students.

Where people lose the point

• ×Describing differentiation as three fixed ability groups with three worksheets.
• ×Equating it with individual plans for every student, which signals it has never been done at scale.
• ×Talking only about supporting struggling students and never about extending confident ones.

What a strong answer covers

• Universal design for learning is a planning stance: build the lesson from the outset with multiple means of engagement, representation and action or expression, so that fewer students need something added afterwards.
• Differentiation is what you do in response to the students actually in front of you, adjusting content, process, product and environment based on assessment evidence.
• An accommodation changes how a student accesses learning or demonstrates it without changing the standard being assessed, for example extra time, assistive technology, or a scribe.
• A modification changes the standard or the expectation itself, and that is a decision made through a formal process, not one a teacher makes alone in the moment.
• The relationship in practice is that good universal design reduces the volume of individual adjustment, differentiation handles what remains, and accommodations and modifications specified in a student's plan are entitlements to be delivered rather than options to consider.
• A strong answer notes that the legal frameworks and the names for individual plans differ between countries and school systems, and that the underlying obligation to provide what a plan specifies is common to all of them.

Where people lose the point

• ×Using accommodation and modification interchangeably, which are legally and practically different.
• ×Treating a documented accommodation as optional or as something to be earned.
• ×Presenting universal design as a substitute for responding to individual students rather than as what reduces the load.

What a strong answer covers

• Grouping decisions should come from recent evidence about the specific skill being taught, not from a general impression of a student's ability or from last term's data.
• Quick, low-stakes evidence is what makes this workable: an exit ticket, a hinge question mid-lesson, a short diagnostic at the start of a unit, or circulating with a checklist during independent work.
• The grouping that follows is temporary and specific. A student may need direct instruction on one skill this week and be extending others next week, and if the groups look the same in March as in September, the assessment was not driving anything.
• Groups serve different purposes: a short targeted teaching group with the teacher, mixed pairs for a discussion task, similar-readiness pairs for a structured practice, and independent work for those ready for it. Say which purpose each grouping serves.
• Students should understand grouping as task-specific rather than as a verdict, and the language used in the room does a lot of that work.
• A strong answer describes what happens to the evidence: how it is recorded quickly enough to be used tomorrow, since assessment that takes a week to process cannot drive grouping.

Where people lose the point

• ×Describing groups that are set at the start of the year and never change.
• ×Collecting formative evidence and then teaching the planned lesson regardless.
• ×Proposing an assessment workload that could not survive contact with a full teaching timetable.

What a strong answer covers

• A scaffold changes the route to the objective while the objective itself stays the same. Sentence starters, worked examples, a vocabulary preview, a partially completed organiser, text read aloud, and additional time all leave the required thinking in place.
• Lowering expectations changes the destination: a shorter task with the analysis supplied, labelling instead of explaining, or an easier text that no longer contains the demand the objective describes.
• The defining feature of a scaffold is that it is temporary and its removal is planned. A support with no plan for fading has become a permanent reduction whether or not anyone intended it.
• There are legitimate cases where the goal itself is different for an individual student, and those are documented decisions made through the school's process rather than choices made in the moment.
• The risk to watch is cumulative: the students who receive the less demanding version every lesson fall further behind, and no single lesson makes that visible.
• A strong answer describes a concrete check: reviewing periodically who has been receiving reduced demand, and for how long, and treating a long run as a planning problem to solve rather than a fact about the student.

Where people lose the point

• ×Framing all support as automatically good without any account of how it comes away.
• ×Confusing a documented modification with an informal decision to expect less.
• ×Being unable to give an example of a support that was successfully withdrawn.

What a strong answer covers

• Start by stating the single learning objective all tiers work towards, because a tiered task where the tiers pursue different goals is not tiered, it is streamed.
• Describe what varies across tiers: the complexity of the material, the amount of structure provided, the degree of independence, or the openness of the problem, while the cognitive demand of the objective stays intact.
• Give a real example with enough specificity to be credible: the actual text or dataset, what the entry tier provides that the extension tier does not, and what all students must produce.
• Explain how students end up in tiers: assessment evidence for that skill, or in some designs student choice with teacher oversight, and how movement between tiers happens within the unit.
• Describe the shared close: a whole-class discussion or share-back where every tier contributes to the same conversation, which is what keeps the class one class.
• A strong answer says how the tiers are assessed against common criteria, so that the evidence gathered is comparable across the room.

Where people lose the point

• ×Presenting three worksheets of different lengths with no common objective.
• ×Making the top tier simply more questions rather than deeper demand.
• ×Assigning tiers permanently, or making the tier visible in a way that labels students.

What a strong answer covers

• Separate language demand from cognitive demand. The aim is to reduce the linguistic barrier to a concept, not to simplify the concept, and those are usually different edits to a task.
• Front-load the vocabulary and the structures the task needs, with visual support, examples and the words displayed where students can use them during the task rather than only at the start.
• Provide models of the language expected in the output: a worked example of the sentence type, a paragraph frame, or a spoken model before writing.
• Use the student's stronger language as a resource where possible, for planning, discussion with a peer, or first-draft thinking, rather than treating it as something to be excluded from the classroom.
• Give processing and rehearsal time before whole-class talk, since answering in a second language under time pressure in front of peers is a much harder task than it appears.
• A strong answer notes that developing language proficiency says nothing about a student's academic ability or prior learning, and that assuming otherwise is one of the most common and damaging errors in this area.

Where people lose the point

• ×Handing a multilingual learner the same task as a struggling reader without distinguishing language need from conceptual need.
• ×Simplifying content rather than supporting access to it.
• ×Interpreting silence or slow oral response as low ability rather than as a normal stage of language acquisition.

What a strong answer covers

• Start with the objective everyone is working towards, and describe the lesson as one lesson with routes through it rather than as several parallel lessons.
• Open with something everyone can access: a shared stimulus, image, demonstration or short common text that puts the whole class into the same conversation before any divergence.
• Plan the core task with built-in variation: a common text with an audio version and a vocabulary support sheet, structured and open versions of the same analysis, and a shared success criteria set that all versions are judged against.
• Say where you will be. Naming the short teaching group you will pull, and what the rest of the room is doing well enough to work without you, is the part that separates a real plan from a description of intentions.
• Deliver the specified accommodations for the students with individual plans as a matter of course, and describe how any adult support in the room is briefed rather than left to improvise.
• Plan the extension as depth rather than volume: a harder case, a counter-example, a justification or a role explaining the reasoning to others, not simply the next three questions.
• Close with a common share-back and a quick exit check that tells you who to see tomorrow, and say what you would do differently if the exit check showed half the class had not got it.

Where people lose the point

• ×Describing an elaborate plan with five separate activities that could not be prepared weekly or managed by one adult.
• ×Leaving the early finishers with more of the same, which teaches them that working quickly is punished.
• ×Never saying where the teacher is during the independent phase.

What a strong answer covers

• The primary evidence is progress towards the shared objective by the students the differentiation was aimed at, measured against the same criteria as everyone else rather than against a lower bar.
• Look at the gap over time, not just at a single lesson: are students who needed the most support needing less of it, and are scaffolds actually being withdrawn.
• Work samples and exit tickets tell you more than engagement does. A busy, calm room is a necessary condition and not a result.
• Watch participation patterns too: who answers, who is grouped with whom, and who has spoken this week are visible indicators that differentiation is either widening or narrowing access.
• Be honest about the strategies that did not work. An interviewer will trust a specific abandoned strategy more than a list of successes.
• A strong answer includes sustainability as part of the judgement: an approach that produces good results and cannot be maintained across a full timetable is not yet working, and the fix is usually reusable structures rather than more effort.

Where people lose the point

• ×Offering engagement or enjoyment as evidence of learning.
• ×Judging supported students against easier criteria and reporting the result as progress.
• ×Claiming everything worked, which reads as either inexperience or unreflectiveness.

What a strong answer covers

• First check that mastery is real rather than fast: a quick pre-assessment distinguishes students who already know the material from students who complete tasks quickly and superficially.
• Compact the curriculum where mastery is genuine. Making a student who already knows something sit through the teaching of it is the most common way able students are let down.
• Extend by depth rather than volume: harder cases, ambiguous or incomplete data, justification and proof, transfer to an unfamiliar context, or critique of a flawed example.
• Use open tasks with a high ceiling so extension is available inside the same task rather than as a separate reward activity that arrives only if there is time.
• Be careful with the peer-tutor default. Explaining to others is genuinely valuable and it becomes exploitative when it is the only extension a student ever receives.
• A strong answer mentions that high attainment in one topic does not generalise, and that a student can need extension in one area and support in another within the same subject.

Where people lose the point

• ×Giving more questions of the same type as the extension.
• ×Using early finishers as permanent unpaid teaching assistants.
• ×Assuming a student who is strong overall needs no support anywhere.

What a strong answer covers

• Design once and reuse: task structures, scaffolds, question stems and success criteria formats that work across topics cost far less over a year than bespoke resources per lesson.
• Prefer strategies with a high ratio of impact to preparation, such as strong questioning, deliberate pairing, and open tasks with multiple entry points, over sets of parallel worksheets.
• Differentiate where it matters most rather than everywhere: identify the lessons and the concepts where students most commonly diverge, and put the planning effort there.
• Share the load across a department. Common scaffolds and shared resource banks are the difference between differentiation as an individual heroic effort and as a departmental norm.
• Use in-the-moment differentiation deliberately: a well-chosen question, a targeted five-minute group, or a decision to reteach is differentiation that costs no preparation at all.
• A strong answer says plainly that an unsustainable approach will be abandoned by half-term, so choosing something maintainable is a professional judgement rather than a lack of ambition.

Where people lose the point

• ×Claiming to produce three versions of every resource for every lesson, which no panel will believe.
• ×Treating differentiation purely as resource production and ignoring what happens during teaching.
• ×Presenting sustainability concerns as an argument against differentiating at all.