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TESOL / TEFL Certification Online

Our teacher training courses include:
Course material, tutor support, job board,
international recognized credentials,
resources, videos and more.


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Teach English Worldwide!

Ontesol offers free job assistance services in the
top TESOL destinations. Get access to job ads,
schools, and recruiters from your student account.


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Free TESOL Resources and Lesson Plans for Your Class

Find free TESOL articles, activities, and lesson
plans written by our accredited teacher trainers
and experienced TESOL graduates.


Internationally Recognized TESOL / TEFL Certification

Since 2003

250-hour TESOL Diploma

The most comprehensive TESOL / TEFL certification course. Get certified to teach English in Canada or go abroad with an advanced TESOL Diploma. Recognized by TESL Canada & ACTDEC UK.

120-hour TESOL Certificate

The 120-hour Specialized TESOL Certificate program combines the 100-hour TESOL course with a 20-hour specialist course of your choice (TEYL or TBEC). Recognized by ACTDEC UK.

100-hour TESOL Certificate

Get certified to teach English abroad. Learn how to create professional lesson plans with an accredited TESOL / TEFL certification course! Includes grammar and phonology. Recognized by ACTDEC UK.

Which TESOL / TEFL course is right for me?

How Will OnTESOL Make You a Better ESL Teacher?

Learning to create professional lesson plans is the most important reason for taking a TESOL / TEFL certification course. OnTESOL will teach you how to prepare for and deliver professional ESL classes through internationally recognized course material, video tutorials and practical assignments. Furthermore, an experienced teacher trainer will provide extensive feedback on your assignments and answer your questions throughout your TESOL / TEFL course.

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Teach English Using The Most Effective Methods – Core, Specialized, and Advanced TESOL Certification

At Coventry House International-OnTESOL, you will learn to create and deliver fun and effective lesson plans using a variety of resources including authentic materials, integrated skills activities, role-playing, simulations, drama in the classroom, storytelling, debating techniques, presentations, and many more strategies and techniques that will enhance your lessons (Go to TESOL Courses).

Learn to Teach English for Free with OnTESOL

Find free articles on Teaching English to Speakers of Other Languages (TESOL). The How to Teach English blog includes advice by our accredited teacher trainers on using authentic material, classroom management, teaching productive and receptive skills, teaching grammar, teaching vocabulary, using a textbook, teaching English one-to-one, teaching large classes, and more!

What is a Career in Teaching English to Speakers of Other Languages (TESOL) Like?

Our TESOL Expert blog includes expert advice from OnTESOL graduates who are teaching English in Canada and abroad. Learn more about job hunting and visa processing in different countries, cultural considerations in the ESL classroom, overcoming culture shock, tourism, and more!

Quality TESOL Certification Since 2003

In 2003, Coventry House International developed the first OnTESOL course using the syllabus of its on-site Trinity CertTESOL and TESL Canada Professional Standard 1 course. Three years later, the online 200-hour TESOL certificate program was extended to the 250-hour TESOL Diploma, which became recognized by TESL Canada at their Professional Standard 2 certification. We are proud to be one of the only online TESOL institutes in the world to exceed the standards of the most reputable on-site courses, and to have achieved the same level of recognition as major Canadian universities.

Our core and specialized TESOL certificate courses were launched in 2009 to offer the best level of training for people who want to teach English abroad during their gap-year. These courses were developed with the same level of professionalism that went into designing our advanced TESOL certification courses.  Our commitment to quality TESOL training has made OnTESOL a world renowned name in ESL teacher training.