• Online
250 hours
Training Type

Program Details

Teaching Practicum
Job Placement
Online TEFL Online TESOL
Age Min.


Starting Price
Price Details
What's Not Included
Activities Domestic Airfare Meals Travel Insurance
Sep 05, 2023
Jun 07, 2023
2 travelers are looking at this program

About Program

The 250-hour TESOL Diploma is perfect for those who have previous ESL teaching experience, an accredited TESOL/TEFL certification, and are looking to upgrade their teaching skills. This is one of the most comprehensive courses in the theory and methodology of TESOL, offering students a deeper understanding of the impact of lesson planning in the ESL curriculum.

Many of those who completed the 250-hour TESOL Diploma with OnTESOL have obtained lucrative jobs around the world, and received new opportunities working as school directors or running their own ESL school. This program is recognized by TESL Canada Standard 2 on completion of a separate 50-hour Practicum.

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Program Reviews

4.85 Rating
based on 13 reviews
  • 5 rating 84.62%
  • 4 rating 15.38%
  • 3 rating 0%
  • 2 rating 0%
  • 1 rating 0%
  • Benefits 5
  • Support 5
  • Fun 4.35
  • Facilities 4
  • Safety 2.7
  • Instruction 5
  • Support 5
  • Value 5
  • Academic Rigor 5
  • Job Assistance 4.5
  • Content 5
  • Engagement 4.85
  • Support 4.85
  • Platform 5
  • Value 5
Showing 1 - 8 of 13 reviews
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Yes, I recommend this program

250-hour TESOL diploma ONTESOL- The right choice!

It took me some time to find the right TESOL course. Now I know I made the right decision choosing the 250-hour TESOL diploma from ONTESOL. The support was great, my tutor answered all my questions and helped me when I needed it. The assignments and tasks were hard work but the best way to learn and to practice. I would recommend it to anyone that is in doubt and does not know which course to choose. This one is the right choice!
I am going to enroll in another course from ONTESOL (Teaching English Online Certificate)! and I am sure it is going to be another great experience. Thank you ONTESOL!

31 people found this review helpful.
Default avatar
Yes, I recommend this program


ONTESOL provides a very productive course with in-depth knowledge of the subject matter. I am very satisfied with the overall experience. My mentors, Margaret Hurley and James Green, were both very supportive and are very intellectual. The entire course is very carefully built keeping in mind how a candidate would need to progress towards the end goal. I am a teacher, and nobody can understand the course development better than me. The course is very effectively structured so that students can move step by step to enhance their overall knowledge.

Both my mentors were very supportive and were readily available in case of any difficulties that came up during the course. They explained everything very nicely which made all the concepts clear to me.

I would highly recommend ONTESOL if you wish to learn from home.

  • Supportive teachers
  • Well structured course
34 people found this review helpful.
Default avatar
Yes, I recommend this program

ONTESOL 250-Hour TESOL Diploma

The ONTESOL 250-Hour Diploma was a comprehensive program that well prepared me to meet the demands of serving as an ELT instructor and in working in the field of TESOL. I enjoyed the content related to pronunciation and teaching methodology. I appreciated the assignments within the course as they mirrored real-world tasks and skill development. The course provided a lot of practical information that I continue to reference in my daily career. If you are looking for a comprehensive course with practical training elements, I would recommend the 250-HOUR TESOL diploma.

  • Comprehensive Topics
  • Different Types of Methodology
  • Pronunciation Teaching
  • Visually Non-Stimulating Material
  • Dense
52 people found this review helpful.
Default avatar
Yes, I recommend this program


I did the 250-hour TESOL Diploma, and 20- hour Specialist certificate courses (Teaching Young Learners, Business English, and Teaching IELTS). Margaret was my tutor for the Diploma course. She is highly experienced. She gave detailed explanations to questions, and provided constructive feedback. Talking about the course material, I think anyone can understand it. It was easy and concise.
For the Specialist courses, James was my tutor. He’s experienced and also responded to queries promptly. I think Teaching IELTS remains the best. It covered all aspects of the IELTS Exam preparations, and has wonderful tips that can help any student to succeed.
I must say that it is worth it for anyone aspiring to be a good ESL teacher to go for any of the OnTESOL courses. They are carefully designed to meet different needs with regards to teaching. Above all, you are going to meet wonderful people that would help you succeed. I remembered when I couldn’t meet up with the deadline due to accident that I had, Sebastian and others were there to help. I have already gotten my diploma and certificates but they are still willing to help with job search.
In general, I recommend Ontesol to anyone who wants to be a wonderful ESL teacher.

55 people found this review helpful.
Default avatar
Yes, I recommend this program


Clare Linton and her colleagues were extremely helpful for me in terms of helping me tailor my resume and steering me towards suitable jobs that fit my needs. I would highly recommend Mrs. Linton and the team at ONTESOL in terms of helping one find suitable jobs both domestically and internationally.

  • Resume Building
  • Introducing Job Opportunities
  • Friendly and Supportive
56 people found this review helpful.
Default avatar
Yes, I recommend this program

OnTESOL 250 hour Certification Course

I recently completed my 250 hour TESOL Diploma. I could not be more satisfied! The course was comprehensive and provided in-depth information on creating lesson plans and teaching grammar, vocabulary, speaking, and pronunciation. My tutors were extremely helpful in guiding me in the right direction by providing ample support which allowed me to become more confident in making lesson plans and grow in areas I was challenged. Lastly, TESOL's job placement assistance is another plus, as they provided me with a lot of information and helped me find a job that I am excited to start in September!

What would you improve about this program?
I honestly can not think of anything. All around this course has allowed me to connect my two passions of teaching and travel, while also providing in-depth information and room for growth!
83 people found this review helpful.
Default avatar
Yes, I recommend this program

Having a TESOL Certification Opened Up a Lot of Doors

Having a TESOL certification opened up a lot of doors for me. I initially only did it to meet the requirements for my existing teaching job, but it did make finding a job in a language school much easier.

I completed the TESOL program in eight months and, while I did find it somewhat challenging to complete it on time, it was fairly doable. The methodology module was fairly challenging, but I found the grammar and phonology ones alright.

The tutors were helpful and they answered their emails quickly, and additionally provided more explanations when I asked. Assignment-wise, I would say that some of the assignments require you to pay close attention to the instructions and execution, and those assignments were among the most challenging ones. Luckily, it is allowed for students to re-take an assignment if they have failed the first time.

79 people found this review helpful.
Default avatar
Yes, I recommend this program

Intense and rewarding

This has been an intense and rewarding journey for me. I say this because TESOL /teaching is a complete departure from my educational background. This course now gives me the potential to launch out professionally in the field of TESOL and even become a member of TESL Canada as this body recognizes the program. It is a lot of handwork and rigor
especially with the volume of assignments. This has made me a product of quality set for the practical experience of all I have learned from Ontesol. The fact that I am now able to create meaningful lesson plans is the spring board I need to enter into the classroom. I must not fail to mention the patience and immense support from my tutors, it was remarkable. I just completed the program and have been immediately contacted by the Recruitment and Graduate Services department.
Thank you Ontesol!

What would you improve about this program?
I would have liked to have substantial online (real time) video tutoring sessions along with a bit of reduction in the volume of reading texts provided with this program.
82 people found this review helpful.

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