Key Takeaways
- London schools and agencies use supply teacher interviews to assess behaviour management, safeguarding knowledge, flexibility and reliability before making bookings.
- This article covers the most common supply teacher interview questions in London, with recruiter-informed guidance on how to answer each one effectively.
- You’ll find specific advice for primary vs secondary settings, and for daily supply, short-term and long-term roles.
- The article explains what happens after your interview or trial day, and how to increase your chances of being rebooked.
- Impact Teachers can support your interview preparation and help you secure consistent work across London schools.
What schools in London usually ask supply teachers at interview
London schools and agencies tend to focus on practical readiness rather than abstract teaching philosophy. Whether you’re on an agency registration call, a video interview, or attending an in-school trial, expect questions like these:
- Tell us about your teaching experience in London or similar urban settings
- How do you manage behaviour when you don’t know the class?
- How do you safeguard pupils as a supply teacher?
- How do you handle walking into a lesson with no plans?
- What days and locations can you realistically cover?
- How do you work with TAs and other staff you’ve just met?
- Can you describe a time you helped an underperforming student succeed?
- What does high quality teaching look like to you?
- How would you respond to a class lacking enthusiasm?
London schools often probe your ability to handle challenging behaviour, mixed attainment groups, and diverse cohorts including high proportions of EAL learners and pupils with special educational needs. Interviewers also want to know you’re reliable—punctual despite TfL delays, clear in your communication, and realistic about your availability.
How to answer supply teacher interview questions well
The key to strong answers is structure, not scripts. Use the STAR method to frame responses: describe the Situation, your Task, the Action you took, and the Result you achieved. Keep each answer under two minutes and use one clear example rather than vague statements.
Tailor your approach to the role type:
- For daily supply, emphasise flexibility, quick rapport, and calm under pressure
- For short-term posts (1-4 weeks), highlight routine-building and consistency
- For long-term roles, demonstrate progress tracking and planning skills
Reference real London contexts where possible. Overseas teachers can draw on comparable high-density or challenging settings from their home countries, and should prepare by transitioning effectively from teaching abroad to the UK.
Example answer skeletons:
- Experience: “In four years covering London secondaries, I worked across boroughs including Hackney and Southwark, building relationships with staff and adapting to different school values quickly.”
- Behaviour: “Faced with a disruptive KS2 class, I introduced a visual timer routine within five minutes, praised settled pupils first, and had all students on-task within ten minutes.”
- Last-minute cover: “Called at 7am for a PE lesson, I improvised team-building relays using minimal equipment, keeping energy high and learning active despite no lesson plans.”
- Teamwork: “Working with a new teaching assistant, I clarified roles before the lesson started, which improved group work and made transitions smoother.”
Always finish with what you learned or how you improved. Keep your tone positive and focus on actions rather than complaints about previous schools.
Looking for Teaching or Support Roles in London?
Apply once with Impact Teachers and be considered for Primary, Secondary and SEN roles — including Teaching Assistant (TA), LSA, HLTA and SEN Teaching Assistant Jobs positions.
Explore Roles by Location: London Jobs | Wandsworth | Greenwich | Hackney
Behaviour management questions and what schools want to hear
Behaviour management is usually the most important theme in any supply teacher interview. London schools need to know you can walk into an unfamiliar classroom environment and maintain calm, productive learning.
Common behaviour questions include:
- How do you manage behaviour with a class you’ve just met?
- Can you give an example of managing a very challenging class?
- What do you do if a school’s system is different from what you’re used to?
Schools want to hear that you follow their displayed policy, use praise liberally (aim for a 5:1 ratio of positives to corrections), establish quick-win routines like entry procedures, and know when to call for support rather than escalate.
Example answer using STAR:
“In a Year 10 maths lesson at a Croydon secondary (Situation), I needed to deliver algebra without plans and with three high-needs pupils chatting off-task (Task). I greeted each student individually at the door, praised the pairs who settled immediately, then introduced a two-minute think-pair-share with TA support (Action). Within eight minutes, all students were engaged and the lesson finished successfully—the school requested me again the following week (Result).”
In primary settings, whole-class visuals, songs and reward systems like marble jars work well for transitions. In secondary, seating plans and clear expectations carry more weight. Overseas teachers with relevant experience in challenging settings can demonstrate transferable skills—your calm authority matters more than UK-specific school names.
Safeguarding, flexibility and professionalism questions
Safeguarding questions are non-negotiable in any supply teaching position interview. You’ll also be assessed on flexibility and professional conduct.
Common safeguarding questions:
- What would you do if a pupil disclosed a concern?
- How do you keep yourself and pupils safe as a supply teacher?
- What safeguarding training have you completed recently?
Your answers must reference Keeping Children Safe in Education (KCSIE), explain that you would never promise confidentiality to a child, record concerns accurately, and report to the Designated Safeguarding Lead the same day.
Flexibility questions:
- How do you feel about same-day bookings?
- What key stages are you comfortable covering?
- How do you react if plans or classrooms change at short notice?
For professionalism, schools expect punctuality (aim to arrive 15 minutes early), appropriate dress, no phone use in class, and respectful communication with office staff. Social media boundaries matter too—never contact pupils through personal accounts.
Example answer combining safeguarding and professionalism:
“If a pupil disclosed a concern, I’d listen calmly without judgement, reassure them, make a written record immediately, and report to the DSL before leaving school. I’d never promise to keep it secret or investigate myself. This approach aligns with KCSIE and the procedures I followed in my previous role in Melbourne.”
Primary vs secondary supply teacher interview differences
Many supply teacher interview questions overlap between phases, but London primary and secondary schools emphasise different skills.
Primary expectations:
London primaries often ask about phonics progression, early reading programmes like Read Write Inc, whole-class transitions, and managing mixed-ability classes from Reception to Year 6. You may be questioned on differentiating instruction for children with special educational needs and working effectively with your teaching assistant. Schools want to see genuine interest in nurturing younger learners and building positive relationships quickly.
For more guidance on primary roles, see primary school teacher jobs.
Secondary expectations:
Secondary interviews focus on subject confidence, understanding departmental schemes of work, and handling disruptive behaviour at KS3 and KS4. You might be asked about corridor supervision, managing phones and low-level disruption, and delivering effective lessons without detailed plans. Expect questions testing your ability to differentiate instruction across age ranges and attainment levels, as well as your grasp of a typical day in the life of a secondary school teacher.
Explore secondary school teacher jobs for phase-specific opportunities.
Some London all-through and SEN schools blend expectations. If you’re unclear on the key stage or role, ask clarifying questions at interview, especially if you’re exploring special needs teaching opportunities across Greater London.
What to say about availability, travel and short-notice bookings
Availability and travel are central to supply teaching in London. Interviewers ask direct questions here:
- Which days are you free every week?
- How far across London will you travel and at what times?
- Are you open to early-morning calls for daily supply?
- Do you drive, cycle, or use public transport?
Be honest and specific. Over-promising then cancelling damages your reputation and wastes school time. A strong answer sounds like: “I’m available Mondays, Wednesdays and Fridays, and can travel within 60 minutes of my Zone 3 home address using TfL.”
Prepare realistic commute plans using apps like Citymapper. Mention strategies such as leaving earlier to allow for delays.
Strong sample phrases:
- “I’m open to last-minute bookings within Southwark and Lambeth clusters, where I can reach most schools within 45 minutes.”
- “I check my phone from 6am and can confirm bookings quickly if they’re within my travel zone.”
Browse current teaching jobs in London to see what’s available in your preferred boroughs, and use this alongside our guide to top teaching posts in London to plan your next steps.
What happens after interview or trial day
The follow-up process in London varies between agencies and direct school hires, but common patterns exist.
After an agency registration interview:
- Compliance checks begin: DBS (enhanced check can take 3-14 days), references (2-5 days typically), right-to-work verification
- You complete online safeguarding training (usually around 2 hours)
- Once cleared, you’re eligible for bookings—often within 1-4 weeks
After a school trial day:
- You receive informal feedback, sometimes the same day
- The school decides whether to request you again
- Strong performance can lead from daily supply to longer-term cover
Follow up professionally: send a polite thank-you email to your consultant, reflect on any positive feedback, and update your agency on new availability or boroughs you can cover, using the Impact Teachers contact channels if you need to discuss next steps.
Performance on early bookings often leads to being “favourited” by certain schools, generating regular work. Some teachers build a list of 10-20 schools that request them repeatedly, leading to consistent daily rates and potential permanent offers.
Example scenario:
A teacher registers with Impact Teachers, completes vetting, and accepts their first booking at a Tower Hamlets primary. Positive feedback leads to weekly rebookings, then a term-long placement—all within two months.
How Impact Teachers can help
Impact Teachers is a specialist education recruitment agency supporting supply teaching across London and the wider UK. We help candidates prepare for interviews, understand behaviour management strategies that work in London schools, and match them to suitable boroughs.
- Interview preparation including mock interview sessions and guidance on common interview questions
- Behaviour and safeguarding advice tailored to UK expectations
- CV support and matching to schools that fit your skills and preferences
- Ongoing professional development once you’re working
We work with both UK-based teachers and those relocating from Canada, Australia, Ireland, New Zealand and South Africa, offering support with visas and understanding UK safeguarding culture.
Read more about daily supply teaching in London or apply to register with us to get started.
Looking for Teaching or Support Roles in London?
Apply once with Impact Teachers and be considered for Primary, Secondary and SEN roles — including Teaching Assistant (TA), LSA, HLTA and SEN Teaching Assistant Jobs positions.
Explore Roles by Location: London Jobs | Wandsworth | Greenwich | Hackney
FAQs about supply teacher interviews in London
Do London schools always interview supply teachers before booking them?
Not always. Some schools book daily supply purely through the agency’s vetting, while others request a phone chat or trial day—especially for long-term roles. Agencies like Impact Teachers conduct their own interview or video call first, which acts as a pre-screen for multiple schools. Strong performance on early bookings can reduce the need for formal interviews later, as schools may rebook trusted teachers directly.
How formal is a daily supply teacher interview compared with a permanent post?
Daily supply interviews are usually shorter and focus on behaviour, safeguarding, and availability rather than detailed curriculum planning. Long-term or temp-to-perm roles in London may involve a more traditional interview process plus an observed lesson. Prepare as seriously for agency registration calls as for school-based interviews—both influence future bookings.
What should I bring to a supply teacher interview in London?
Bring photo ID, proof of address, right-to-work documents, DBS details if available, qualification certificates, and referees’ contact information. A simple folder with your CV, recent safeguarding certificates, and brief examples of lesson plans or behaviour management approaches is helpful. Overseas teachers should also carry visa documentation and evidence of QTS or equivalent qualifications.
How can I talk about UK safeguarding if I’ve only taught overseas?
Read the latest Keeping Children Safe in Education summary before your interview. Frame answers around universal safeguarding principles: listening to children, not promising confidentiality, recording concerns accurately, and passing them to the appropriate person. Reference any child protection policies from your home country to demonstrate transferable understanding and enthusiasm for following UK-specific procedures.
How quickly can I start getting bookings after my interview?
Timing depends on clearing compliance—DBS, references, right-to-work and safeguarding checks can take from a few days to several weeks. Once fully cleared, supply teachers in London can often begin receiving bookings quickly, especially during high-demand periods like September, January and after half-terms. Stay in close contact with your Impact Teachers consultant so you can be prioritised for roles as soon as vetting completes.
