The resume should focus on your teaching experience & qualifications. For those who haven’t done any “official teaching” you can mention “unofficial teaching” e.g. training other staff, youth group leader, sport coach, school volunteering, music tutoring etc.
We have a resume template that can assist you to right your resume.
If you are a mature person with many years experience in other fields I wouldn’t bother listing all of this in your Employment History. Usually it is not necessary unless it involved some type of “teaching” experience.
If you are a young person then it can be better to list all of your experience, even if it was just one day volunteering at some type of “teaching” position. You should never lie but this can be a chance to show your command of the English language with some creative writing.
If you are a stay at home parent who hasn’t had much work you can mention about volunteering that you have done. Perhaps helping at your local school or helping at school camps etc.
Of course the main focus is on your teaching experience but don’t forget the other areas of your life as well like Skills & Attributes, here are some that might fit you.
Effective Communicator at all levels
Organisational Skills
Adaptability and Flexibility
Quick learner
Reliable
Conscientious
Team player
Self-motivated
My speech is clear and easy to understand
Enthusiastic
Punctual
Strong willingness to learn and discover new things
Great sense of humour
Dependable
Emotionally mature and confident
Honest
Native English speaker
Energetic
Love working with children
Also show that you are a well rounded person by listing Community Roles if you have done any of this and list your Interests. Sometimes these can be the basis for a lesson plan.
(Resume is best if it is on a MS Word file)