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Working As A Supply Teacher: A Practical Guide
Supply teaching can be rewarding, flexible and career-building – but it can also feel uncertain if you’re not properly supported.
We partner with schools, trusts, and education partners across the UK, supporting classrooms nationwide.
What is supply teaching?
Supply teaching involves working in schools on a short-term, long-term or temporary basis to cover staff absence, vacancies or additional support needs.
Supply roles can include:
- Day-to-day cover
- Longer-term placements
- Temp-to-perm opportunities
- Teaching assistant and support roles
- SEND and SEMH support
Many educators use supply to gain experience, rebuild confidence or find a better long-term fit.
What to expect as a supply teacher
Before You
Arrive
In the
Classroom
Behaviour &
Relationships
Supply teaching in different settings
Early Years & Primary
Strong focus on routine & relationships
Safeguarding and ratios are critical
Familiarity makes a big difference
Secondary
Clarity and boundaries matter
Subject knowledge can be important
Behaviour expectations are usually well-defined
SEND & SEMH
Patience, calm, & consistency are key
Behaviour is often communication
Experience and preparation matter
How to succeed as a supply teacher
Make every placement count by:
- Arriving prepared and on time
- Being flexible and adaptable
- Building positive relationships
- Creating an engaging learning environment
- Leaving detailed handover notes for the class teacher
These simple habits can help you become a trusted and valued supply teacher.
Pay, work patterns & progression
Supply teaching can offer:
- Daily or weekly pay
- Flexible work patterns
- Opportunities for long-term placements
- Routes into permanent roles
Many educators use supply strategically – to test schools, build experience or regain work-life balance.
Choosing the right supply agency
Some practical tips:
- Arrive early and introduce yourself
- Ask about behaviour policies and routines
- Leave clear notes at the end of the day
- Be honest about what you’re comfortable with
- Give feedback to your consultant
Supply works best when communication is open on both sides.
How Milk supports supply teachers
Working with Milk Education means you’ll benefit from:
- A dedicated education recruitment consultant
- Access to local day-to-day and long-term roles
- Career guidance and interview support
- Opportunities to progress into permanent positions
- Friendly support throughout your journey
We’re committed to helping you find roles that fit your skills, goals, and lifestyle.
Is supply teaching right for you?
Supply teaching can suit educators who:
- Want flexibility around work and availability
- Enjoy working across different schools or settings
- Are returning to teaching after a break
- Want to gain experience before committing to a permanent role
- Prefer variety or reduced workload
It may be less suitable if you’re looking for complete predictability or dislike adapting quickly.
Thinking about supply?
If you’re considering supply teaching – or want a better experience than you’ve had before – we’re happy to talk things through.
READY TO REGISTER?
If you’re looking for supply or longer-term education roles with a partner who values consistency, support and professional judgement, register with Milk today.