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Advanced practitioners: Delta

The Delta (Diploma in Teaching English to Speakers of Other Languages) is the highest qualification for English language teachers. A Delta sets teachers apart from the crowd as advanced practitioners.

Full flexibility

The Delta is a flexible course that you can study around your commitments in your own time, with full support available when you need it.

There are three modules you must pass to become Delta qualified, but you can take them in any order, pay for them separately and there is no time limit on completing all three. This means you could take them all in the same year or study one module a year if you prefer.

We do recommend you start with module one and work through them in order, but if you feel that starting with Module Two or Three would benefit you please contact us for advice. Even if you have completed a module with another provider, you can still come to Bell to complete your remaining modules.

Once you have completed the Delta, you will be able to:

  • Develop your career and apply for more senior roles
  • Be at the forefront of English language teaching methodology
  • Critically examine your own teaching practices
  • Gain knowledge and skills to take your teaching to the next level

Module One: Understanding language, methodology and resources

  • Teaching method 1 (face-to-face):  two weeks face-to-face teaching at Bell Cambridge with online study before you arrive.
  • Teaching method 2 (online): online only.
  • Course length: 14 weeks
  • Assessment: Exam in June or December at an exam centre local to you (for both teaching methods).

Module Two: Improve your practical teaching skills

  • Teaching method 1 (face-to-face): six weeks full-time face-to-face at Bell Cambridge including assessed teaching practice.
  • Teaching method 2 (online): online study with teaching practical observed by an approved local tutor (Bell will train local tutors and pay them for their time).
  • Course length: 6 weeks full-time face-to-face / 13 weeks part-time online.
  • Assessment: Teaching portfolio consisting of 4 language skills/systems assignments and a professional development assignment.

Module Three: Specialist subject study

  • Teaching method (online): choose your specialist subject to study in-depth with online one-to-one tutor support.
  • Course length: 11 weeks
  • Assessment: Online submission of your extended assignment.

The Delta is a recognised qualification globally, accredited by Cambridge English Language Assessment, part of the University of Cambridge.

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Each year, Bell helps more than 200 teachers study for their Delta qualification.

Cambridge English, Exam Preparation Centre
TEFLEquity Advocates
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Erasmus funding available for all courses
English UK Member
Courses at Bell Teacher Campus are sponspored by Cambridge University Press
Cambridge English Language Assessment Authorised Centre