How to Teach Juniors and Medical Students: A Trainer's Guide

Every surgeon becomes a teacher, usually before anyone says so. A medical student follows you round clinic, a foundation doctor asks you to talk through a referral, a core trainee waits for your view before deciding on a plan. The difficulty is not willingness but time: the list does not shorten for teaching. Good teaching in surgery is mostly a set of small, repeatable habits that fit inside clinical work, plus two or three tested models for teaching reasoning and practical skills. This guide covers both, along with feedback, the formal trainer roles, and how to get better at it.

The shift from trainee to trainer

The change rarely comes with a title. It shows when juniors start bringing questions to you rather than to the consultant, or when a student's understanding of a case depends on what you explained. Noticing it early lets you decide how you want to teach instead of teaching by default.

Teaching starts with your own clarity. Before you can explain a decision simply, you need to know the key steps, the common variations and the points where learners usually go wrong. A few minutes thinking through a procedure or a common referral outside clinical time prevents vague or contradictory advice at the bedside.

In the UK the role also becomes formal. Since 2016 the GMC has required deaneries and medical schools to give it details of trainers in four defined roles: named educational supervisors and named clinical supervisors in postgraduate training, and doctors who oversee student progression or coordinate student placements (GMC trainer recognition evaluation (opens in a new tab)). The recognition framework is based on the seven areas of the Academy of Medical Educators' framework for supervisors:

1. Ensuring safe and effective patient care through training
2. Establishing and maintaining an environment for learning
3. Teaching and facilitating learning
4. Enhancing learning through assessment
5. Supporting and monitoring educational progress
6. Guiding personal and professional development
7. Continuing professional development as an educator

The GMC's standards for training, Promoting excellence (opens in a new tab), require that "trainers must have enough time in job plans to meet their educational responsibilities" (R4.2). If you take on a named supervisor role, make sure it appears in your job plan. For what the supervision relationship looks like from the trainee's side, see getting value from your educational supervisor.

Start each session with a short plan

At the start of a list, clinic or ward round, agree two or three things the learner will focus on that day, tied to what is actually happening. It takes less than a minute and gives them something to watch for instead of trying to absorb everything.

Match the plan to the learner:

Teach reasoning: the one-minute preceptor

The five microskills model, published by Neher and colleagues in 1992 and often called the one-minute preceptor, was designed for teaching in short clinical encounters. After the learner presents a patient:

1. Get a commitment. "What do you think is going on?" or "What would you do?"
2. Probe for supporting evidence. "What makes you think that?" This shows how they reached the answer, not just whether it was right.
3. Teach a general rule. One transferable point, such as "knee pain in an adolescent needs hip radiographs".
4. Reinforce what was done right. Name the specific action.
5. Correct mistakes. Say what to do differently next time.

The model works because it starts with the learner's own thinking and ends with feedback. Two of its five steps are feedback. It takes about as long as telling them the answer would.

Questions work best at natural pauses and short: what is the next step, what would you look for, what could go wrong here. When the answer is incomplete, a short prompt usually completes it without becoming a lecture.

Teach practical skills: Peyton's four steps

For a procedural skill, Peyton's four-step approach is widely used in undergraduate skills-lab training. As described in the trials below:

1. Demonstrate. The trainer performs the skill at normal speed without comment.
2. Talk the trainee through. The trainer performs it again while describing each step.
3. Trainee talks trainer through. The trainer performs it a third time, following the steps as the learner describes them.
4. Trainee does. The learner performs the skill.

The evidence is small but direct. In a Heidelberg randomised trial of 34 medical students learning gastric tube insertion on a manikin, Peyton's approach produced no difference in checklist scores, but better global ratings of professionalism and communication and a faster first independent performance (168 versus 242 seconds) than standard instruction (Krautter et al. 2011 (opens in a new tab)). A follow-up trial in 97 students learning central venous catheter insertion found that step 3, in which the learner talks the trainer through the procedure, contributed most to performance, more than simply repeating the demonstration (Krautter et al. 2015 (opens in a new tab)).

Both trials were in students on manikins, so the results do not transfer directly to operative surgery. The principle does: before a learner does a step, have them tell you how they will do it. In theatre, the four steps rarely happen in one sitting; they may run across several cases of the same operation.

Hand over in small pieces

Give responsibility one step at a time. After the learner has watched a part of the procedure, invite them to do the next action under direct supervision rather than the whole task. Over several cases the pieces add up to fuller involvement without any single handover being abrupt.

When demonstrating, isolate one element and explain only that, while you do it. Layering background, alternatives and anecdotes into the same moment overloads the learner. If there is time for a second pass, add context then.

Patient safety sets the limit. If a case becomes difficult, take over and explain afterwards. Saying in advance that you will do this makes it routine rather than a judgement. For teaching specifically during operations, see how to teach effectively in theatre.

Give feedback on actions, straight away

Feedback works best when it is specific, immediate and about something the learner did. "That retractor position gave you a much better view of the nerve" tells them what to repeat. "Good job" does not. Correction follows the same rule: name the action and one adjustment, not a list.

Keep the tone on the task, not the person. Learners who expect useful, unembarrassing feedback ask for more of it. For a fuller approach, including how to receive feedback yourself, see giving and receiving feedback in surgery.

Close with one reflection point

At the end of the list or clinic, ask the learner for one thing they noticed or would do differently next time. Listen, then add at most one point of your own. It takes a minute, fixes the most useful lesson and models the habit of reviewing your own work.

Say when you do not know

Learners value honesty about the limits of knowledge more than an appearance of certainty. "I don't know; let's look it up after the list" models the habit you want them to develop and keeps your credibility.

Get better at teaching

Teaching improves the same way operating does: deliberate practice and feedback.

Ask how it landed. After a session, ask the learner what they took away. Note what helped and what confused them.

Collect evidence. Learner feedback, teaching logs and any observed teaching are the evidence appraisal and trainer recognition look for.

Take a course. RCS England's Training the Trainers: Developing Educator Skills (opens in a new tab) is open to all surgical grades. At the time of writing it combines about four hours of online learning, a 30-minute one-to-one with faculty, a face-to-face day and about three hours of follow-up online work, carries 12 CPD points, and its stated outcomes include using "a structured four-stage model to teach a psychomotor skill". The listed price is £750, with a 40% discount for RCS England members. Deaneries and trusts run their own supervisor courses for those taking on named roles.

Go further if it interests you. The Academy of Medical Educators publishes professional standards for medical educators, and postgraduate certificates in medical or surgical education build on them.

Teaching also changes the teacher: explaining a decision exposes the parts you have never thought through. What mentoring juniors teaches you covers that side of the role.