Co-teaching models: the six models, and whether they actually deliver the IEP
Most co-teaching guides stop at describing the six models. The question that decides whether your co-taught class is compliant is the one that comes after: does the model you are running actually deliver the service written on the IEP? IDEA never mentions co-teaching. It requires least restrictive environment (34 CFR § 300.114), and it requires the IEP to state the services and their frequency, location, and duration (34 CFR § 300.320(a)(4), (a)(7)). Co-teaching is a way to meet those requirements — but only some models, on some days, deliver what a given IEP promises. Below: the six models, and a mapping from IEP language to the model that actually satisfies it.
The six co-teaching models
| Model | How it runs | Best for | Watch out | Co-planning |
|---|---|---|---|---|
| One Teach, One Observe | One teacher leads; the other collects specific, pre-agreed data on students or the class | Baseline data, FBA data collection, checking whether an accommodation is actually working | Only defensible if the observation is planned and purposeful. Unstructured watching is the weakest use of a certified teacher in the building. | Low |
| One Teach, One Assist | One teacher leads instruction; the other circulates and supports individuals | Short-term, when new content is introduced and support needs are unpredictable | The default that everyone drifts into. Highest risk of the SPED teacher functioning as an aide — and the hardest model in which to show specialized instruction was delivered. | Low |
| Station Teaching | Content is split into stations; each teacher runs one, students rotate (often with an independent station) | Content that divides cleanly into parts; lowering group size without stigma | Requires real co-planning and tight transitions. Noise and pacing are the usual failure points. | High |
| Parallel Teaching | Class splits in half; both teachers teach the same content simultaneously to their group | Increasing participation and response opportunities; discussion-heavy lessons | Both groups must get equivalent content. Also the model most likely to be misused as covert tracking if the groups are always the same students. | High |
| Alternative (Differentiated) Teaching | One teacher takes the large group; the other takes a small group for pre-teaching, re-teaching, or enrichment | Targeted skill gaps, pre-teaching vocabulary, intensive re-teach after a formative check | The closest thing to specialized instruction inside the gen-ed room — but rotate membership by data, or it becomes a permanent visible SPED group inside the classroom. | Medium |
| Team Teaching | Both teachers deliver instruction to the whole class together, trading roles fluidly | Modeling dialogue, debate, or think-alouds; mature co-teaching partnerships | Requires the most trust and shared planning of any model, and it is the hardest to document as individualized service delivery. | High |
The six-model framework is the widely used practitioner taxonomy (Friend & Cook); it is professional practice, not a legal standard. The legal standards referenced below are from 34 CFR Part 300.
The compliance question: does the model deliver the service?
Here is the distinction that matters. § 300.320(a)(4) requires the IEP to state the special education and related services and the supplementary aids and services to be provided. Those are different categories with different implications. Specialized instruction is something delivered to a student; a supplementary aid is something that makes the general education setting workable. Then § 300.320(a)(7) adds the frequency, location, and duration — the numbers you are held to.
A co-taught period is not automatically either one. If a student’s IEP promises 150 minutes a week of specialized reading instruction and the co-taught block runs One Teach/One Assist all week, the honest question is which 150 minutes of specialized reading instruction that student received. “A special education teacher was in the room” is an answer about staffing, not about service.
| If the IEP says… | These models can deliver it | This does not, by itself |
|---|---|---|
| "150 min/week specialized instruction in reading, general education setting" | Alternative Teaching (small-group reading instruction inside the room), Station Teaching | One Teach/One Assist — circulating does not document 150 minutes of specialized reading instruction |
| "Supplementary aids and services: adult support during whole-group instruction" | One Teach/One Assist, One Teach/One Observe | Nothing further required — but this is a supplementary aid, not specialized instruction |
| "30 min/week specialized instruction in written expression, small group" | Alternative Teaching, or pull-out — whichever the IEP's location statement specifies | Parallel Teaching where the split is arbitrary rather than skill-based |
| "Consultation: 30 min/month between SPED and gen-ed teacher" | Co-planning time, logged as consultation | Co-teaching itself — consult minutes are a separate service and need their own log |
IEP language shown is invented sample text for illustration. The mapping is a planning aid, not a legal determination — service delivery decisions belong to the IEP team.
LRE: what co-teaching is actually for
§ 300.114(a)(2) sets the standard: to the maximum extent appropriate, children with disabilities are educated with children who are nondisabled, and removal from the regular educational environment occurs only if the nature or severity of the disability is such that education in regular classes with the use of supplementary aids and services cannot be achieved satisfactorily. That last clause is the engine: you cannot justify a more restrictive placement without first considering what supports would make the general education classroom work. Co-teaching is one of the strongest such supports — which is why districts reach for it.
The corresponding IEP requirement is § 300.320(a)(5): an explanation of the extent, if any, to which the child will not participate with nondisabled children in the regular class. In a well-run co-taught model that explanation is short, because participation is nearly total. If you are writing long non-participation explanations for students who sit in a co-taught room all day, something in the paperwork does not match the practice. Compare models in self-contained vs resource room.
Both teachers, one set of duties
§ 300.323(d) applies fully to the general education co-teacher. The IEP must be accessible to them, and they must be informed of their specific responsibilities and of the specific accommodations, modifications, and supports they must provide. In a co-taught room this is easier than anywhere else in the building — the two adults are in the same space daily — and it is still the thing that most often goes undocumented. A one-page at-a-glance for each student with an IEP in the room, handed over in the first week, discharges it cleanly. See do general education teachers have to follow the IEP and inclusion teacher vs SPED teacher.
A workable weekly rotation
Teams that run one model all year get the drift problem. A rotation keyed to the instructional purpose keeps the special education teacher doing specialized instruction — here is one realistic pattern for a five-day block:
- Monday (new content): One Teach/One Assist — support is unpredictable on introduction day, and this is the model that flexes.
- Tuesday (practice): Station Teaching — smaller groups, both teachers instructing.
- Wednesday (formative check): Parallel Teaching, then use the results to set Thursday’s groups.
- Thursday (targeted): Alternative Teaching — the re-teach group is set by Wednesday’s data, not by IEP status. This is where specialized instruction minutes are most clearly delivered and logged.
- Friday (application): Team Teaching or One Teach/One Observe, with the observation collecting data on a specific goal.
Log each day the way you would log pull-out: date, minutes, setting, and the specialized instruction that student received. Format in the IEP service log template, and the minutes math in IEP service minutes.
Frequently asked questions
What are the six co-teaching models?
One Teach/One Observe, One Teach/One Assist, Station Teaching, Parallel Teaching, Alternative (or Differentiated) Teaching, and Team Teaching. They differ along two axes: how students are grouped, and how instructional responsibility is divided. One Teach/One Observe and One Teach/One Assist keep the class whole with one lead teacher; Station and Parallel split the class into groups taught simultaneously; Alternative pulls a small group for different instruction within the room; Team Teaching has both teachers leading the whole class together.
Does co-teaching satisfy a student's IEP service minutes?
Only if the IEP says so and the delivery matches. Co-teaching is a delivery arrangement, not a service in itself. The IEP must state the special education and related services and supplementary aids and services to be provided (34 CFR § 300.320(a)(4)) and the anticipated frequency, location, and duration of those services (§ 300.320(a)(7)). If the IEP says '150 minutes/week of specialized instruction in reading in the general education setting,' then those minutes have to be specialized instruction delivered to that student — not merely the special education teacher being present in the room for 150 minutes. A co-taught period where the SPED teacher circulates and answers questions is a supplementary aid, not necessarily specialized instruction.
Is co-teaching required by IDEA?
No. IDEA never mentions co-teaching. What it requires is the least restrictive environment: to the maximum extent appropriate, children with disabilities must be educated with children who are nondisabled, and removal from the regular educational environment happens only when the nature or severity of the disability is such that education in regular classes with supplementary aids and services cannot be achieved satisfactorily (34 CFR § 300.114(a)(2)). Co-teaching is one popular way districts deliver on that, not a legal mandate. A district cannot require co-teaching as the only service model any more than it can require resource room for everyone — placement is an individual IEP team decision.
Which co-teaching model is used most, and is that a problem?
One Teach/One Assist dominates in practice, largely because it requires the least joint planning. It is also the model that most often drifts into the special education teacher functioning as a classroom aide — which is a problem both instructionally and legally, because a certified special education teacher circulating to assist is not obviously delivering the specialized instruction the IEP promised. If your schedule is 100% One Teach/One Assist, that is a signal worth raising, not a stable design.
How much co-planning time does co-teaching need?
Station, Parallel, Alternative, and Team Teaching all require genuine shared planning; only One Teach/One Observe and One Teach/One Assist can survive without it, which is exactly why they dominate. There is no federal requirement for co-planning time, but the IEP's program modifications and supports for school personnel provision (34 CFR § 300.320(a)(4)) is the place where support for staff can be written into the document — including, in some districts, planning structures. If planning time is the constraint, it belongs in the IEP conversation rather than being absorbed silently by teachers.
Who is responsible for grading in a co-taught class?
IDEA does not assign grading responsibility — that is district and school policy. What IDEA does assign is implementation: the IEP must be accessible to each regular education teacher and each is informed of their specific responsibilities and of the accommodations, modifications, and supports they must provide (34 CFR § 300.323(d)). In practice, the workable rule is that both teachers hold responsibility for all students in the room, with accommodations and modifications applied per each student's IEP regardless of which adult is grading.
Can a paraprofessional co-teach?
No — a paraprofessional is not a co-teacher, and the distinction matters legally. Co-teaching pairs two certified teachers. Paraprofessionals provide support under the supervision of certified staff; IDEA contemplates paraprofessionals who are appropriately trained and supervised assisting in the provision of special education and related services (34 CFR § 300.156(b)(2)(iii)). Specialized instruction that the IEP requires from a special education teacher cannot be reassigned to a para because the schedule got tight.
How do I document that co-taught services were delivered?
Log the same way you would for pull-out: date, minutes, setting, and what specialized instruction was delivered to that student. The vulnerability with co-teaching is that presence gets logged instead of service. If the IEP promises specialized instruction in reading, the log should reflect the reading instruction that student received — not 'co-taught ELA block, 50 min.' This is the documentation an auditor or a due-process hearing will ask for.
Related guides
- IEP service minutes — how frequency, location, and duration get written and counted.
- Inclusion teacher vs SPED teacher — the role distinction underneath co-teaching.
- Paraprofessional IEP responsibilities — why a para is not a co-teacher.
- Special education data binder — documenting what was delivered in a co-taught room.
This guide summarizes 34 CFR Part 300 for educators and is not legal advice. The six-model co-teaching framework is professional practice rather than regulation. Service delivery and placement decisions are made by the IEP team — confirm against your state regulations and district procedures.