Most co-teaching pairs default to one model — usually "one teach, one assist" — because it's the easiest to fall into, not because it's the best fit for the lesson. After years of coaching co-teaching teams, I've found that the strongest partnerships treat these models as a toolkit, not a single setting. Here's a field guide.
One teacher leads instruction while the other collects specific data — on a student's engagement, an IEP goal, or classroom behavior patterns. This is a strong model early in a partnership, or whenever you need real information before deciding on an intervention.
Use it when: You're gathering data for a progress report, an FBA, or you're new to a class and still learning the students.
One teacher leads while the other circulates, providing individual support. It's the most common model — and the most overused. Used constantly, it can position the special education teacher as an aide rather than a co-teacher, which undersells their expertise and can be flagged in a compliance review as an implementation concern.
Use it when: Sparingly — for a specific lesson where one teacher's expertise clearly leads, not as your default day-to-day structure.
Content is split into stations, and students rotate in small groups while each teacher runs a station (sometimes with an independent station added). This lowers the student-to-teacher ratio at each station and works well for content that breaks naturally into parts.
Use it when: You're teaching a multi-step skill or want more frequent, smaller-group checks for understanding.
The class splits into two heterogeneous groups, and each teacher delivers the same content simultaneously to their group. This shrinks the group size for discussion or practice without changing what's being taught.
Use it when: You want more student talk time — think Socratic discussion, lab work, or test review — without splitting by ability.
Both teachers deliver instruction together, often trading off mid-sentence, modeling debate, or presenting two approaches to solving the same problem. It requires the most planning and trust, but it's also the clearest model of true co-teaching to an observer — and to students.
Use it when: Your partnership is established, your planning time is protected, and the content lends itself to multiple perspectives or approaches.
A sixth model — alternative teaching, where one teacher works with a small group for pre-teaching or re-teaching — is powerful but should be used deliberately. Used too often, it can start to look like a pull-out placement disguised as co-teaching, which raises its own compliance questions.
The question isn't "which model is best" — it's "which model fits this lesson's objective, this group of students, and where this partnership is in its development." Strong co-teaching teams plan which model they'll use before the lesson, not during it, and they rotate through more than one or two models across a given week.
Beyond model selection, the partnerships that hold up over a school year share three habits: protected co-planning time (even 20 minutes, consistently, beats an hour that gets cancelled), clearly defined roles for grading and behavior management decided in advance, and a shared understanding that both teachers are equally responsible for every student in the room — not just the students on one teacher's caseload.
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