Switch signal 1: no curriculum spine after month 3
If your tutor can't show you a written plan that maps 9 months to a CEFR target by the end of month 3, they're winging it. Some great tutors wing it well — but only at the high end. For most learners, no spine = no progress.
Switch signal 2: your kid dreads the lesson three weeks in a row
Universal red flag. Once is a bad day. Twice is a pattern. Three weeks is the relationship dying. Either the tutor's not connecting or the curriculum's wrong. Either way, talk to the tutor first; if no change, switch.
Switch signal 3: progress flat for 8 weeks
Some plateaus are real (esp. A2 → B1 and B1 → B2 transitions). But 8 weeks of no measurable progress on ANY axis (vocab, pron, reading, writing) is a sign of a tutor who's coasting.
Switch signal 4: scheduling chaos from the tutor's side
Two cancellations from the tutor in a single month, three rescheduling requests — that's a tutor whose practice has lost focus. Doesn't mean they're bad, but they're not yours anymore.
Switch signal 5: your kid asks for someone different
Take this one seriously. Kids don't ask for tutor changes lightly — when they do, it's usually right. Listen first, ask why, then act.
Switch signal 6: the exam approaches and your tutor isn't exam-specialized
If you have a DELE C1 in 6 months and your tutor's never sat the exam, you need an exam-specialist tutor for the final stretch. Not a knock on your current tutor — just the wrong tool for that job.
Not-a-switch signal: one bad lesson
Every tutor has off days. One bad lesson is noise. Wait two weeks before reading anything into it.
Not-a-switch signal: a hard topic
Subjunctive triggers, Mandarin tones, French liaison — these are genuinely hard. Pain ≠ wrong tutor. The right tutor will explain why it's hard and what comes next.
Not-a-switch signal: another family bragging
Other people's kids are at different points on different curricula. Stop comparing. Compare your kid to your kid 6 months ago.