What it is

The Cambridge Delta(Diploma in Teaching English to Speakers of Other Languages)is a qualification designed for experienced EFL teachers, and is essentially the next step up from the Cambridge Celta.The Delta combines both theory and practice, as well as an extended assignment on a specialisation of your choice, and is intended to further improvea teacher’s existing skills and to support their professional development.  On the UK’s National Qualifications Framework (NVQ), it ranks as a level seven, the same level as a Master’s degree.  It is widely recognised across the world, especially in Europe and Asia, and is one of the standard qualifications in the industry for EFL teachers looking for more senior positions and roles in management.

 Content and structure

The Delta is made up of three distinct modules, which can be studied individually and in any order.  The focus for Module One is “Understanding language, methodology and resources for teaching.”  As such it is ver Content and structurey theory based, looking at different aspects of linguistics, teaching approaches and the learners themselves.  Assessment is through a written exam which is made up of two papers, each of which are ninety minutes in length and feature a number of different questions.  The second module offers a more practical element, entitled “Developing professional practice.”  This covers the whole process of teaching, from preparing and planning lessons to evaluating the students.  As is befitting of a practical course, assessment takes place continuously through a combination of assessed teaching practice and additional assignments and essays.  There is also an externally assessed teaching practice assignment.

Finally, the last module allows for a choice between two options.  The first is “Extending practice and English language teaching specialism.”  This involves choosing a specialised area, for example teaching young learners or exam preparation classes, and using this context to analyse elements such as syllabus design and assessment.  The second option is “English language teaching management.”  This looks at dealing with issues such as conducting a situational or needs analysis and organisation from a management perspective.  Whichever option is chosen; Module Three is assessed by means of an extended assignment of roughly four thousand words in length.


The time taken to complete the Delta can vary, as it not only depends on which provider but also which form of study is chosen.  The Delta is quite flexible in regards to its structure, it can either be entered on a part or full time basis, or also as a distance programme.  In addition, the three modules may be taken separately, and in any order, meaning that the time it takes to complete the full qualification will differ.  Generally, full time study will allow you to finish all three modules in two or three months, whilst part time study will take longer, at around nine months.  There are also some options for distance study, allowing a teacher to work through the course even if they are far from an accredited centre or limited by other time constraints.


Again, there is a lot of variation as it depends on who you choose to take the course with, but around £3,000 seems to be a good ballpark figure.  Including the orientation course fees, the price is about the same for those who wish to study the Delta through a distance learning programme.  A large part of all costs are the Cambridge assessment fees, covering exams and external assessment, which are not included in the figures above and can add an extra £300 or so to the total.

Entry Requirements

There are no solid entry requirements for the Delta as laid out by Cambridge, so the necessary conditions foracceptance onto the course will depend on individual providers.  In general, most will ask for a university degree, as well as an initial teaching qualification (such as the Cambridge Celta or Trinity Cert. TESOL) and at least two years of teaching experience.  It is often stipulated that the teaching experience should have taken part within the last five years.  Given the nature of the course, organisers also look favourably on a high level of language knowledge and competence, as well as any past professional development.The Delta is open to non-native speakers of English, although a high level of language ability, at least C1 or even C2, must be demonstrated.


The Delta is the natural choice for many teachers who wish to develop their skills and enhance their career opportunities.  It is widely recognised throughout the world of EFL and will open many doors, especially in regards to more advanced or specialised teaching and management positions (both of which are aspects that are covered in Module Three).  As already stated,the Delta ranks as a level seven on the UK’s National Qualifications Framework (NVQ), which is the same as a Master’s degree.Interestingly, recipients of the Delta can also use their qualification to receive credits from some universities towards a Master’s degree.  This enables parts of the university course to be avoided, as some modules may essentially be duplicates of material covered on the Delta, thus decreasing the time that needs to be invested in order to obtain a Masters.

Useful links.

Useful Links

For more information, including both general questions as well as greater detail on course content, please check out the links below.

 Frequently asked questions about the Delta.

Further information on each module, including a detailed syllabus.

The Distance Delta with International House.

EFL course comparison, including both the Celta and Delta.