CELT Tutors


Marisa Constantinides

Marisa is a teacher, teacher educator,  and ELT author; she is the Director of Studies of CELT Athens and is responsible for the design and implementation of all courses offered at CELT. She has designed and run numerous seminars and workshops in Greece and other countries for schools and teacher associations. Her main ELT qualifications are a Diploma in TEFLA and an M.A. in Applied Linguistics from Reading University.

Marisa is a frequent conference presenter and keynote speaker – some recent presentations can be viewed here – and has presented at IATEFL International, TESOL France, Brazil TESOL, TESOL Greece as well as on numerous online Conferences and Events. Since June 2015, she has also been a member of the Committee of the IATEFL Learning Technologies SIG (Special Interest Group).

Nominations & Awards: Marisa is one of the founding moderators of #ELTchat, a weekly discussion of ELT teachers on Twitter which was nominated & shortlisted in the 2012 ELTon Awards for Innovation in Creativity in the English Language ClassroomTeacher Resources. To find out more about this great weekly chat offering free professional development, visit the #ELTchat website here. A few more nominations/awards for blogging by international websites can be viewed here.

Publications: Marisa has written materials for young learners and for using literature in ELT; she has published articles in a variety of print and online journals – some can be viewed here – and she maintains the following blogs and websites:

Marisa Constantinides is an Approved CELTA and DELTA Main Course Tutor and trains face-to-face and online.

She is @Marisa_C on Twitter and you can connect with her on Facebook & LinkedIn 


GV with shirtGeorge Vassilakis

George Vassilakis’s first degree is in Philosophy, but having also earned a Diploma in English Literature and a Diploma in Translation, he  quickly changed direction, completed a certificate-level teacher training course and dedicated himself to English Language 8Teaching. After completing a course of advanced studies in ELT, as well as courses on teaching grammar and teaching business English, he  came to CELT as a trainee and attended the RSA Cambridge DOTE in 1989 (also a predecessor to the DELTA) which he completed  with a Distinction in Language and Methodology. He later also completed an MA in TEFL.

George worked as a teacher for some years and, after completing his RSA studies, was employed at CELT where her started tutoring on all the courses and very soon on the RSA Diploma course itself. Later he worked as the Academic Director and Cambridge exams manager for the Eurognosi language school chain for three years.

From 2008 to 2015, George was the Director of Language Certification at Peoplecert  which handles all City & Guilds Language Assessment but kept working with CELT as well during that time, tutoring mainly on our DELTA courses.

Since the beginning of April 2016, George Vassilakis has been working full time for CELT Athens as Head of Teacher Education.

Publications: George has written materials for Heinemann and Macmillan ELT, where he published Action English 1-3, a beginner to intermediate course for young learners, Lift-off, an upper intermediate course for young adults, and, more recently, with Rose Aravanis, Code Blue,  an intermediate course for teenagers and adults.

George’s blog is Detefling.

George is an approved CELTA and DELTA course tutor but contributes to other courses such as the Delta Module 1 Preparation and Module 3 support and the English for Teachers course.  

Alexander Makarios

 alexander Alexander has been a teacher since 2004 during and he has taught a va riety of age groups and levels. He obtained his Cambridge CELTA Certificate in 2006, his Cambridge Delta Diploma in 2009 (both at CELT Athens) and was subsequently given a teaching post on our general and Business English courses.  

In 2010, Alexander trained up as a CELTA tutor and since then he has been working as a Course Tutor on all of our Cambridge CELTA courses.

alexanderHe is one of the blog authors of Cambridge CELTA Blog as well as the blog on this site.  

Alexander is currently working towards his M.A. in Applied Linguistics at the University of London.

Alexander is an approved CELTA course tutor and he is currently training up to be approved as a DELTA tutor as well. 

He is @AlexandreMak on Twitter

Alexandra Koukoumialou

Alexandra Kouk (as many have come to know her on Facebook and Twitter) has been a teacher of English for more than 15 years. She has a BA in Economics but worked as an alexandraEnglish teacher straight away and later obtained her Cambridge Diploma for Overseas Teachers at CELT in 1993.  More recently, Alexandra also recently completed her Avalon Certification Course for Teaching Languages in Second Life as well as her CELTA trainer training course at CELT Athens.

Alexandra ran her own private language school for 10 years in Athens but decided to join CELT Athens in 2008 teaching General, Business English and Modern Greek courses and, later,  training and supporting our Distance Diploma in Translation Courses from and into Greek.

She is one of the blog authors of Cambridge CELTA Blog as well as the blog on this site.

Alexandra is an Approved CELTA tutor and supports our Distance Translation Diploma trainees working on the English to Greek course option.

She is @AlexandraKouk on Twitter

Angelos Bollas

teachingAngelos Bollas is a Tutor on the CELT Athens CELTA courses – he obtained his CELTA in 2014 and subsequently completed his Cambridge Delta with us and continued with his MA in English Language Teaching. Currently, he is completing his PhD.

He has experience of teaching in Greece, general and exam classes and in the UK teaching in EAP classes.

He co-moderates #ELTchat on Twitter every Wednesday and is currently serving as a member of the Conference Committee for IATEFL International

Angelos is an Approved CELTA tutor since the summer of 2016. 

He is @Angelos_Bollas on Twitter and his blog is Narratives of a TEFLer 

Bita Rezaei

Bita Rezaei is Director of Studies at Hermes Institute in Tehbitarezaeiran, Iran and a Cambridge CELTA tutor. She holds an MA in TESOL and Applied Linguistics from Leicester University as well as CELTA and CELTYL certificates and a DELTA diploma. Her areas of interest in ELT include teacher training and development.
 ELTM-Poster-2 copy
Our collaboration started in 2013 when we trained Bita to be a CELTA tutor and since then, asked her to work on our courses and to develop and take over our already very successful ELT Management course which she has enriched with her background in Business Studies and her experience of running a very successful chain of Foreign Language Centres in Iran.
Bita is an Approved CELTA tutor who works on our summer CELTA courses and our online ELT Management course.
She is @BitaRezaei82 on Twitter

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Centre for English Language & Training, 3 G.Gennadioy Street, 106 78 Athens, Greece

Tel +30 210 3302406 | +30 210 3301455 | Fax +30 210 3301202|  E-mail:  info@celt.edu.gr

If you send us an email and are waiting for an answer, do check your spam folder and enable all messages from celt.edu.gr as our messages may end up there. 



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