Teacher workload in 2026: the real time-sink ranking from r/Teachers

We scraped 713 posts from the five biggest English-language teaching subreddits in May 2026 and counted what teachers actually complain about. The ranking surprised us. Lesson planning, the thing every AI teacher tool sells against, is the fifth-biggest time sink, not the first.

The ranking

1. Marking. The largest single time sink in 2026 across all five subreddits. Volume scales linearly with class size and assessment frequency. AI cannot ethically replace this, student work is the evidence you teach to.
2. Admin paperwork and data entry. Reports (especially mid-term and end-of-year), attendance, MIS updates, behaviour records, evidence files. Reddit consensus: the volume is increasing, the audience is shrinking, most paperwork is read by no-one.
3. Parent emails and communications. Higher in 2026 than 2022 because parental expectations of response time have compressed. "I emailed at 9pm and haven't heard back by 8am" is a real complaint teachers now field.
4. Meetings. Department, staff, IEP, parent- teacher, PD, behaviour intervention. Reddit teachers describe most as "could have been an email", which is true but doesn't get them their hour back.
5. Lesson planning. The thing AI teacher tools advertise. Real but #5, not #1. For a typical teacher, planning eats 6-8 hours of the weekend; the categories above eat more aggregate hours but spread across weekdays.
6. IEP and differentiation documentation. High-effort, often duplicates information that already exists somewhere. The documentation is the time sink; the actual differentiation is part of teaching.

Why the misperception persists

Two reasons. First, lesson planning concentrates the time on the weekend, which is what teachers FEEL the most. Marking is spread Monday to Friday after school; you don't notice the hour you lost on Tuesday because you also marked Monday. The Sunday evening reckoning, by contrast, is unmistakable.

Second, the AI category that emerged in 2023-2024 was built around "AI lesson plans" because that's what was easiest for an LLM to do. The category created its own marketing centre of gravity. The actual ranking of teacher time sinks didn't get a hearing.

What this means for product strategy

Tools that solve only "lesson planning" address the fifth- biggest problem. Tools that draft the plan from one prompt and then generate the slides, worksheet, and exit ticket off that plan as one-click follow-ons address #5 plus partial credit on #2 (the worksheet IS the differentiation documentation in some classrooms). Tools that try to address marking ethically run into the student-data problem fast.

Lessona's product position acknowledges this honestly. We solve the planning + bundle subset. We do not solve marking, admin paperwork, parent emails, or behaviour. We do not pretend that giving you Sunday back is the same as fixing the system. It isn't. It is, however, the tractable subset of the problem that tooling can address without ethical compromise.

Common questions