DELTA (Diploma in teaching English to speakers of other languages) is a detailed and comprehensive course that covers advanced theory and practice to help you develop in your teaching career.
DELTA is a qualification from Cambridge English Assessment, which is part of the University of Cambridge.

You need at least one year’s experience to make the most of it, although many people take it after a number of year’s experience in the classroom. If you are planning to progress into academic management a DELTA is a very good idea. In some schools it will be a prerequisite.
There are three modules, which you can take in any order.
DELTA Module 2
DELTA Module 2 is “Developing Professional Practice”. It is assessed with a portfolio of coursework and assessed lesson observations. Topics covered are:
- The learner and learning context
- Preparing to teach
- Using resources and materials in the classroom
- Managing and supporting learning
- Evaluating lesson planning
- Observing lessons
- Professional development
The other modules
Module 1 is “Understanding Language, Methodology and Resources for Teaching”. This is the examined module, and is primarily theoretical.
Module 3 is independent research on either an ELT specialism or management. It is assessed by a written dissertation.
DELTA Module 1
DELTA Module 1 is “Understanding Language, Methodology and Resources for Teaching”. This is the examined module, and is primarily theoretical. Topics are
- Theory of language acquisition and language teaching
- Different teaching approaches and methodologies
- Language systems and linguistic problems
- Language skills
- Resources, materials and reference sources for language learning
- Assessment concepts and terminology
Beacuse this module is examined, some people benefit from additional help with exam preparation and revision. We have an online course exactly for this. See here!
DELTA Module 3
DELTA Module 3 is independent research on either an ELT specialism or management. It is assessed by a written dissertation
About the school
At IH Mexico we exclusively offer 100% Online CELTA+AI.
This means that we are in a very privileged position to be able to offer CELTA+AI candidates the following premium benefits:
- The only CELTA that embraces AI and other digital tools to facilitate your course experience.
- A 100% online course using Zoom and with access to the official Cambridge CELTA Moodle website, with samples of written assignments, sample lesson plans, and video recorded lessons (both face to face classes and live online teaching!)
- Exclusive access to the Digital Toolkit for CELTA
- Free Bonus Course: IH Mexico Certificate in Teaching English Online, with 30hrs of input on tasks, strategies, and approaches to planning and teaching in the online environment.
- 15% discount on our newly launched CLIL (Content Language Integrated Learning) course.

And there is more, such as flexibility, personalised guided lesson planning sessions, extra electives and live CELTA+AI Masterclass sessions, including a session about jobs in TEFL and access to our network of international schools and recruiters. Keep reading to find out more!
Our program combines the renowned CELTA certification, with artificial intelligence and advanced digital tools to help facilitate your course. Integrating AI tools in the program equips you with technological resources to expedite lesson planning, create innovative materials, and assess student progress, during and after the course.
Discover the groundbreaking combination of CELTA+AI, exclusive to IH Mexico, to boost your teaching skills with the help of modern tools to transform your approach to delivering dynamic lessons.
Apply now and get access to our Digital Toolkit for CELTA (exclusive to IH Mexico). This toolkit was created specifically with the CELTA candidate in mind and is divided into sections to help with key aspects of the course. Although use of AI is NOT a requirement of the course, we’ve curated some of the best tools and practical tips to make the most of technology to facilitate the CELTA experience. Harness the power of AI to speed up lesson planning and materials creation so you can focus on what’s important, the teaching!
Our CELTA+AI 100% Online course timetables combine the benefit of studying online at your convenience with “virtual” face to face teaching. This gives you maximum flexibility in how you do your course and minimal time spent away from earning an income.
Most CELTA courses are run over 4 or 5 weeks, Monday to Friday. This can be intense, as it’s a relatively short time to take everything on board.
Choose our semi-intensive (6 weeks) or part time (12 weeks) to give yourself more time to process information and prepare for teaching practice.
CELTA is a methodology course and focuses on teaching general English to adults. Although you may be delivering your lessons online, that’s where CELTA stops as far as “online teaching”. However, if you’re hired to teach online you may need to know how to plan for synchronous and asynchronous lessons, manage content on platforms, etc., and that’s where our Teaching Online Certificate comes in.
We created this course at the beginning of the pandemic to help teachers transition to teaching online and picks up where CELTA leaves off, leading to a second, separate certificate, apart from your CELTA. Our thinking behind this is, your CELTA certificate says “I know how to teach English” and your Teaching Online certificate says “I know how to teach online”, so both certificates show potential employers that you’re qualified to teach English, online.

