The teacher you never forgot: what great teachers do, and how to thank yours

Think of the teacher you never forgot.

Not the one who taught you the most facts. The one you still think about. Maybe they noticed you were quiet and asked what you thought. Maybe they refused to let you give up on a problem. Maybe they just made a hard subject feel like it was yours to figure out.

Now a second question: did you ever tell them?

For most of us, the answer is no. And that, it turns out, is one of the most reliably wrong guesses we make about other people.

What you remember is rarely the lesson

Ask a room of adults about a favourite teacher and the stories sound strangely alike. Almost nobody says, "She covered the syllabus beautifully." They say, "He made me feel like I could do it." "She was strict, but she was fair." "He explained it in a way that finally clicked."

Researchers have tried to put words to this. In the Measures of Effective Teaching project, a large US study funded by the Bill & Melinda Gates Foundation, Harvard researcher Ronald Ferguson's student survey asked children what their classrooms were actually like. It grouped the answers into seven things, now known as the "7 Cs":

• Care: the teacher shows they care about you as a person.
• Confer: they ask for your ideas and listen to them.
• Captivate: they make lessons interesting.
• Clarify: they explain things clearly, and can explain them another way if you don't get it.
• Consolidate: they help you pull the learning together and review it.
• Challenge: they expect effort and push you to keep going.
• Classroom management: the room is calm and safe enough to learn in.

Read that list again slowly. It is a description of a person who cares, listens, explains and believes you can do more. It isn't a description of someone who happens to know the material.

Why it lasts

A teacher's influence doesn't stay in the classroom year. A well-known US study by economists Raj Chetty, John Friedman and Jonah Rockoff followed more than a million students from a large urban school district into adulthood. They found that students who had a teacher who raised test scores more than average, even for a single year, were more likely to go on to college and had higher earnings in their late twenties. The researchers also noted that the effect on test scores itself faded over the years, which suggests that teachers shape more than what shows up on a test.

Two honest caveats. It is a US study, and the effects for any one child are small and measured on average. But the direction is consistent with what you already know from your own life: the right teacher at the right moment can matter for a long time.

Why we don't say thank you

If teachers matter this much, why is it so hard to thank them?

Psychologists Amit Kumar and Nicholas Epley ran a set of experiments, published in Psychological Science in 2018, in which people wrote a short thank-you letter to someone who had influenced them. The writers were asked to predict how the recipients would feel. They got it wrong in a consistent way: they underestimated how surprised and how happy the recipients would be, and overestimated how awkward the recipients would feel.

In other words, we worry about sounding trite, or clumsy, or like we're making a fuss. The person on the receiving end mostly feels the warmth of being noticed.

If you've been holding back a note to your child's teacher because you can't find the perfect words, the research is on your side: send it anyway.

The three-sentence thank-you

You don't need a card with a poem on it. The notes teachers keep tend to be short and specific. Here's a simple shape:

1. Name the moment. What did they do, specifically?
2. Say what it changed. What did it make possible for your child (or for you)?
3. Say thank you. Plainly.

A few examples, so you can see how little it takes:

"Thank you for staying calm when Ada got stuck on long division last week. She came home saying 'I can do hard things.' That sentence is from you."

"You always give every child a turn to explain their thinking, even when it's slow. My son has started to speak up at home too. Thank you."

"I'm writing 20 years late: you stayed after class to explain fractions to me until I understood them. I use that patience every day. Thank you."

From a child, in their own words: "Thank you for explaining it again. I understood it the second time."

A few guardrails that keep a note easy to receive:

• Words, not gifts. A note costs nothing and can't be misread. A gift during a high-pressure season, such as exam preparation, can put a teacher in an awkward position.
• Keep it about the teacher, not the result. "Thank you for believing in her" is better than a note that mentions grades or rankings.
• Keep it brief. Three sentences is a complete note.
• Use first names only if you post anything publicly. Please don't share children's names, schools or photos online.

Where this meets exam preparation

If your child is heading towards an entrance exam or an assessment like the CAT4, there is a quiet bonus in all of this: the teacher who hears from you is more likely to share what they see. They know how your child behaves when a question is hard. They know whether your child rushes or freezes. That is exactly the information that makes home practice better.

Three questions to ask your child's teacher this term:

1. When my child gets stuck, what do you see them do?
2. What kind of task do they find easy, and what kind makes them hesitate?
3. What is one small thing we could practise at home that would help in class?

Ask them kindly and listen to the answer. Then use it.

One more thing

Today's pupils will remember a teacher, too. The one who was patient. The one who explained it twice. The one who said, "Try again, you're closer than you think."

If someone has been that teacher for your child, tell them this week. It will take you about a minute, and the research suggests it will mean more than you expect.

Qualificant is an independent exam-readiness platform and is not affiliated with or endorsed by GL Assessment. We make no promise of exam scores or admission outcomes. Sources: UNESCO, World Teachers' Day; Kumar & Epley (2018), Psychological Science, summarised by UChicago News; Chetty, Friedman & Rockoff, summarised by NBER; Measures of Effective Teaching and the Tripod 7Cs.