13 TEFL Teacher Mistakes (And How To Avoid Making Them)

Teaching English abroad can be one of the most exciting, rewarding experiences of your life – but it’s also rarely as simple as the job listing makes it look.

Most new TEFL teachers don’t struggle because they’re “bad teachers.” They struggle because no one prepares them for the real adjustments: the cultural differences, the emotional highs and lows, the learning curve that happens both inside and outside the classroom.

Mistakes are part of the process. They don’t mean you’ve chosen the wrong path – they mean you’re learning.

After teaching in both South Korea and China, I’ve seen (and made) many of the same mistakes most TEFL teachers do in their first year. This guide breaks down the most common ones – and more importantly, how to avoid letting them derail your experience.

Read more: How To Live And Work In China As A Foreigner

1. Thinking teaching abroad is the same as travelling

This is one of the biggest misconceptions new TEFL teachers have.

Many people imagine teaching abroad as an extended holiday – exploring new places, eating amazing food, and casually teaching a few classes in between. While travel is absolutely a perk, living abroad is very different from visiting. 

Teaching comes with routines, responsibilities, and expectations. You have a timetable, colleagues, students who rely on you, and a life to manage in a new system.

How to avoid this mistake:

• Go in with the mindset that you’re moving somewhere – not visiting. 
• Build routines early. Find a favourite café, a regular grocery store, a gym or walking route. Familiarity creates comfort, and comfort makes everything feel more manageable.

2. Underestimating culture shock

Culture shock doesn’t mean you dislike the country you’ve moved to. It means your brain is working overtime.

Many teachers experience an initial “honeymoon phase,” followed by frustration, exhaustion, or homesickness. Simple things – grocery shopping, using transport, or understanding workplace norms – suddenly feel overwhelming. This phase catches many teachers off guard because they weren’t expecting it.

How to avoid this mistake:

• Understand that culture shock is normal, temporary, and not a sign you’ve made a bad decision. Give yourself time. Most teachers settle significantly after a few months – once daily life feels less foreign.
• Don’t be shy to ask for help when you’re struggling. Whether it’s at the grocery store, the train station or even at school – there will always be someone willing to help.

Read more: Navigating Culture Shock: My Real Experience Teaching English In Vietnam

3. Not asking enough questions before accepting a job

Excitement can make it tempting to say yes quickly – especially if it’s your first offer. However, not asking questions about working hours, class sizes, office time, curriculum expectations, or accommodation can lead to frustration later.

Many teachers only realise after arriving that their workload looks very different from what they imagined.

How to avoid this mistake:

Ask detailed questions before signing anything:

• What does a typical workday look like?
• How many students per class?
• Is lesson planning required?
• Is there paid prep time?
• What support is provided for new teachers?

Clarity upfront prevents disappointment later.

From my personal experience, it’s also best to interview with multiple schools rather than accepting the first offer that comes your way. Seeing different contracts side by side helps you understand what’s standard in the market – salary ranges, teaching hours, benefits, and expectations. It gives you perspective, confidence, and leverage, and helps you recognise the difference between a genuinely good offer and one that simply feels exciting because it’s first.

Read more: What To Expect In A TEFL Contract

4. Overworking to prove yourself

Many first-year TEFL teachers feel pressure to say yes to everything. Extra classes. Extra admin. Extra responsibilities.

This often comes from a good place – wanting to be professional, grateful, and respected. But over time, it leads to burnout. Teaching is demanding enough without putting unrealistic pressure on yourself.

How to avoid this mistake:

• Set boundaries early. Doing your job well doesn’t mean doing everything. Sustainable teachers are far more effective than exhausted ones.

Remember: you were hired because you’re qualified – not because you’re expected to run on empty. And if you are expected to do extra responsibilities, make sure you get compensated accordingly.

5. Taking classroom behaviour personally

Classroom behaviour varies hugely across cultures – and what feels like “disrespect” may simply be unfamiliar norms.

In some countries, students are very quiet and passive. In others, they’re loud, energetic, and expressive. Neither is a reflection of your ability as a teacher. 

Many new teachers internalise classroom challenges, assuming they’re failing. For example: taking it personally when students are super loud and won’t listen to you all the time.

How to avoid this mistake:

• Separate behaviour from self-worth. 
• Learn local classroom expectations and ask colleagues for advice. 

Classroom management is a skill – not an instinct – and it improves with experience.

6. Relying only on Western teaching methods

What works in one country doesn’t always translate seamlessly to another.

Some students are used to rote learning and structure, while others thrive with games and discussion. Trying to force one teaching style everywhere can create frustration on both sides.

How to avoid this mistake:

• Adapt, don’t abandon, your teaching style. 
• Blend familiar methods with local expectations. 

Flexibility is one of the most valuable skills a TEFL teacher can develop.

7. Not preparing for practical life admin

Many teachers prepare for lessons – but not for life logistics.

Banking systems, mobile plans, internet restrictions, transport apps, healthcare, and payments can feel confusing at first. These challenges can pile up quickly if you’re unprepared.

How to avoid this mistake:

• Research daily-life basics before arriving. 
• Join expat groups. 
• Ask coworkers for app recommendations. 

Practical stability reduces stress far more than people expect. Also, don’t stress yourself out too much! Don’t be shy to ask for help from the locals – they’re so friendly and they know the systems already!

8. Isolating yourself

Moving abroad can feel lonely – especially at first. Some teachers struggle to make friends outside work, while others stay inside their comfort zone, hoping loneliness will pass on its own.

Connection doesn’t always happen automatically.

How to avoid this mistake:

• Be proactive. Say yes to invitations. 
• Join language exchanges, fitness classes, or social groups. Even one or two familiar faces can make a huge difference to how settled you feel. 

You’ll also be surprised by how many locals will approach you and strike up a conversation – it’s easier to make friends than you’d think!

Read more: How To Find Your Community As A TEFL Teacher

9. Expecting to feel “at home” immediately

Feeling unsettled doesn’t mean you chose the wrong country. Many teachers expect an instant sense of belonging — and feel discouraged when it doesn’t happen. In reality, feeling at home is something you build, not something that arrives overnight.

How to avoid this mistake:

• Measure progress in small wins: navigating transport confidently, ordering food without stress, recognising familiar streets. These moments add up faster than you think.

10. Confusing safety awareness with fear

Many women worry about safety when teaching abroad – often more than necessary.

Growing up in South Africa, being aware of my surroundings was second nature: locking car doors, walking with purpose, staying alert. Those habits weren’t about panic – they were about awareness.

Those same skills translate perfectly abroad.

In reality, I’ve never once felt unsafe teaching in South Korea or China – big cities like Seoul or Guangzhou often feel comfortable for solo women, whether commuting, grocery shopping, or socialising. (Except maybe the occasional fast Didi driver!)

Read more: Solo Travel: Tips, Safety And The Best Destinations

How to avoid this mistake:

• Understand that awareness ≠ fear. Being prepared doesn’t mean being scared – it means being confident.

11. Thinking teaching abroad is riskier than travelling solo

Many people assume moving abroad to teach is the same as travelling solo — but it isn’t.

When it comes to safety and stability, routine and familiarity play a big role:

• You have a home base and a community
• Colleagues and students check in on you
• Neighbourhoods become familiar
• Shops and services feel known

Teaching allows you to integrate into daily life quickly, creating a sense of security that travelling alone often lacks.

12. Believing mistakes mean you’re not cut out for TEFL

This is the most damaging mistake of all.

Feeling overwhelmed, homesick, or uncertain doesn’t mean you’re failing — it means you’re adjusting. Every confident TEFL teacher you see once felt exactly the same way.

Growth doesn’t feel graceful while it’s happening.

How to avoid this mistake:

• Give yourself permission to be new. 

Skills come with time. Confidence follows experience — not the other way around. You’ll be so proud of yourself in the end!

13. Comparing yourself to other teachers

One mistake many new TEFL teachers make — often quietly — is comparing themselves to others.

It’s easy to look at a coworker who seems confident, organised, and adored by their students and think, “Why don’t I have it together like that?” Social media doesn’t help either. You see teachers posting perfectly decorated classrooms, viral lesson ideas, and glowing reviews — while you’re just trying to survive your Tuesday afternoon class.

What you don’t see is that everyone starts somewhere. That confident teacher once struggled with classroom management. That “natural” teacher once went home exhausted and doubting themselves. 

Teaching growth happens behind the scenes.

How to avoid this mistake:

Focus on your own progress, not someone else’s highlight reel. 

Ask yourself:

• Am I more comfortable than I was last month?
• Do I understand my students better now?
• Am I learning what works — and what doesn’t?

Teaching abroad isn’t a competition. It’s a personal learning curve. The only comparison that matters is who you were when you arrived versus who you’re becoming now.

Final thoughts: Mistakes are part of the journey

Teaching English abroad isn’t about getting everything right from day one. It’s about learning — professionally and personally.

The challenges are real, but so is the growth. Teaching abroad builds confidence, resilience, adaptability, and perspective in ways few other experiences can. If you’re making mistakes, you’re doing it right!

Because the teachers who thrive aren’t the ones who never struggle — they’re the ones who keep going anyway.

Author Bio

Written by

Sons & Eri

Edited by Kirsten Colquhoun

Sonia and Erin are two South African English teachers living in Guangzhou, China. After teaching in South Korea, they moved to China to continue their TEFL journey, and now they share honest and practical insights about expat life, cultural differences, and working abroad in China. They help future teachers feel more prepared (and excited!) for life in China. Read Sons & Eri's story →