Message from the President<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\t\t\t\t\tWelcome to the wonderful world of DIAKROTIMA Tutoring Centers. Among the best tutoring centers in the city and throughout Greece. Your decision to enroll at DIAKROTIMA PIRAEUS brings you closer to success and to achieving even your most ambitious goals. For our part, we are committed to responding with a strong sense of responsibility to the trust you place in us, and we will be by your side every step of the way, for whatever you need, throughout your entire studies! <\/span><\/p>With a deep sense of our educational responsibility toward our students, we have created a tutoring center that, above all else, respects the student and applies the most up-to-date teaching methods. That is why, after all, we ensure that our classes are homogeneous and small, always aiming for the students\u2019 maximum possible performance. <\/span><\/p>We place particular emphasis on how the course is conducted. For this reason, we have chosen to hold consecutive class periods, with breaks as deemed necessary by the instructor. This ensures more effective teaching time and better use of each class session. <\/span><\/p>The teaching process follows a specific pedagogical structure: checking and evaluating students\u2019 preparation, reviewing previous material, addressing questions, and actively engaging students in solving exercises. In the second part of the lesson, new material is introduced, the appropriate methodology is developed, and it is applied through targeted examples. <\/span><\/p>Our books\u2014KALAITZIDIS PUBLISHING\u2014also play a crucial role in the educational process \u2014which are the culmination of many years of teaching experience and a valuable tool for effectively preparing our students. Designed for use in the classroom and fully adapted to the requirements of the modern examination system, they provide substantial support for teaching and contribute to a better understanding and mastery of the material. <\/span><\/p>Of course, as part of this process\u2014in keeping with the needs of the times and with technology as our ally\u2014we created our own educational platform, the Artemis information system, through which we \u201copen\u201d the doors of our classrooms to you, the parents, every day. Through this system, our students gain access to a wealth of educational resources, constantly communicate with their teachers even outside of class time, organize their responsibilities, and stay informed about their daily progress. Furthermore, by equipping every classroom with state-of-the-art interactive whiteboards, we also ensure remote instruction in the event of a student\u2019s absence, fulfilling our promise that at DIAKROTIMA, not a single hour of class is ever truly lost. <\/span><\/p>Beyond the modern educational tools at our disposal, however, we never forget that our true strength lies in the human resources of our academic team. With teachers who are evaluated by the students themselves every year and who undergo continuous professional development throughout the school year, you can rest assured that your child\u2019s preparation is in the best hands. With the best teachers, the most rigorous mock exams every other Saturday, where scores are compared to average results, and the most comprehensive study guides from our publications, we can guarantee that success is assured. <\/span><\/p>The relationship of trust we have built over the years, as well as the results we achieve at the end of each year, prove us right.<\/span><\/p>Addressing you, the students\u2014both I myself, as a mathematician and President of the DIAKROTIMA Association, and all the teachers\u2014we assure you that our vision, for nearly three decades, remains the same:<\/span><\/p>Make sure you have the most powerful educational tools at your disposal for your difficult struggle, and receive the best education you deserve. Don\u2019t forget that we\u2019ll always be by your side until you achieve the victory you deserve. <\/span><\/p>Embark on a wonderful journey of discovery, without compromising your dreams and expectations.<\/span><\/p>The future lies ahead of you, and it’s yours!<\/span><\/p> <\/p>
Theodoros Kalaitzidis <\/b><\/p>
Mathematician <\/b><\/p>
Founder & President of the DIAKROTIMA Tutoring Center Group<\/b><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\n\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\n\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t![\"\"](\"https:\/\/www.diakrotima.gr\/wp-content\/uploads\/2025\/12\/istorikianadromi1-1.webp\")
\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\n\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t![\"\"](\"https:\/\/www.diakrotima.gr\/wp-content\/uploads\/2025\/12\/istorikianadromi2-copy-4-1.png\")
\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\n\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t![\"\"](\"https:\/\/www.diakrotima.gr\/wp-content\/uploads\/2025\/12\/istorikianadromi2-copy-1.png\")
\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\n\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t![\"\"](\"https:\/\/www.diakrotima.gr\/wp-content\/uploads\/2025\/12\/istorikianadromi2-copy-3-1-1.png\")
\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\n\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\n\t\t\t\t\tA Historical Overview<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\t\t\t\t\tThe DIAKROTIMA Educational Group operates in the field of tutoring for middle school, high school students, and graduates, with a steadily increasing number of students in all areas where its branches operate.<\/p>
In 1997, Mr. Theodoros Kalaitzidis, a mathematician and the group\u2019s current president, founded the first DIAKROTIMA tutoring center in Piraeus. Our ambition has always been to provide tutoring support to our students with the sole goal of ensuring their future success. <\/p>
This operating model for our pilot tutoring center was developed quickly, and more than 100 centers throughout Greece are now operating based on it.<\/p>
Since then, our work has continued to grow year after year, enabling more than 25,000 of our students enter higher education at colleges and universities and go on to become distinguished scholars and successful professionals.<\/p>
Now in its third decade, the DIAKROTIMA educational group is the largest chain of tutoring centers in Greece, holding two comprehensive quality certifications\u2014ISO 9001 and ELOT 1433\u2014from Lloyd\u2019s’s Register of London, three top education awards (Gold in 2019, Silver and Bronze in 2021), as well as eight business awards for franchise chains.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t
\n\t\t\t\t\t\n\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\t\t\t\t\tWith more than 100 tutoring centers in operation, 1,331 teachers, and approximately 145,419 students on an annual average, the educational organization DIAKROTIMA is the leading tutoring organization.<\/p>
Our tutoring centers offer 67 unique titles of study guides for middle school \u2013 high school, career guidance and counseling programs for parents and students, a study guide with useful information, state-of-the-art audiovisual material with interactive whiteboards that aid in learning the course material, as well as the best pedagogical teaching methods applied by teachers with extensiveand a proven track record in teaching and writing.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t![\"\"](\"https:\/\/www.diakrotima.gr\/wp-content\/uploads\/2025\/12\/college-student-studying-1.jpg\")
\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\n\t\t\t\t\t\n\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\tCorporate Social Responsibility<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\t\t\t\t\tAt DIAKROTIMA Tutoring Centers, we consider it our duty\u2014as the largest tutoring organization\u2014to stand by children and families who are in need and require all of our support, especially during these difficult times.<\/p>
For many years now, we have been supporting the following nonprofit organizations by providing them with free classes as well as financial assistance, basic necessities, food, and school supplies.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
\n\t\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\tMake a Wish<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\t\t\t\t\tMake-A-Wish is a global organization that grants a wish to every child with a serious illness.<\/p>
Make-A-Wish\u2019s programs are for children ages 3 to 18 who are suffering from serious illnesses, giving them hope to continue their fight.<\/p>
We were truly captivated by their work and became an official sponsor of Make-A-Wish Greece.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t![\"\"](\"https:\/\/www.diakrotima.gr\/wp-content\/uploads\/2025\/12\/imgi_3_makeawish-logo-240-1.png\")
\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\n\t\t\t\t\t\n\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t![\"\"](\"https:\/\/www.diakrotima.gr\/wp-content\/uploads\/2025\/12\/imgi_1_main-GR-logo-xatzikiriakio-child-care-institution-graphdays-ariapr.png-1.webp\")
\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\tHatzikyriakeio Foundation for Child Protection<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\t\t\t\t\tThe Hatzikyriakeio Child Protection Foundation is a historic child protection organization in Piraeus.<\/p>
The DIAKROTIMA Tutoring Centers simply couldn’t help but stand by the children, especially those who need it most.<\/p>
Every year, we collect food, school supplies, and basic necessities and deliver them to the Hatzikyriakeio before the holidays.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
\n\t\t\t\t\t\n\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\tA Child's Smile<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t“The Smile of the Child” is an organization that needs no further introduction for the work it has been doing all these years to support children facing difficulties in every corner of Greece.<\/p>
We first came into contact with \u201cThe Smile of the Child\u201d thanks to a man who won a DIAKROTIMA scholarship in a radio contest and wanted to donate it to \u201cThe Smile of the Child.\u201d<\/p>
We then took immediate action and gave many children throughout Greece the opportunity to take free classes at our tutoring centers. <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t![\"\"](\"https:\/\/www.diakrotima.gr\/wp-content\/uploads\/2025\/12\/imgi_1_logo-gr-1.png\")
\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\n\t\t\t\t\t\t\t
Welcome to the wonderful world of DIAKROTIMA Tutoring Centers. Among the best tutoring centers in the city and throughout Greece. Your decision to enroll at DIAKROTIMA PIRAEUS brings you closer to success and to achieving even your most ambitious goals. For our part, we are committed to responding with a strong sense of responsibility to the trust you place in us, and we will be by your side every step of the way, for whatever you need, throughout your entire studies! <\/span><\/p> With a deep sense of our educational responsibility toward our students, we have created a tutoring center that, above all else, respects the student and applies the most up-to-date teaching methods. That is why, after all, we ensure that our classes are homogeneous and small, always aiming for the students\u2019 maximum possible performance. <\/span><\/p> We place particular emphasis on how the course is conducted. For this reason, we have chosen to hold consecutive class periods, with breaks as deemed necessary by the instructor. This ensures more effective teaching time and better use of each class session. <\/span><\/p> The teaching process follows a specific pedagogical structure: checking and evaluating students\u2019 preparation, reviewing previous material, addressing questions, and actively engaging students in solving exercises. In the second part of the lesson, new material is introduced, the appropriate methodology is developed, and it is applied through targeted examples. <\/span><\/p> Our books\u2014KALAITZIDIS PUBLISHING\u2014also play a crucial role in the educational process \u2014which are the culmination of many years of teaching experience and a valuable tool for effectively preparing our students. Designed for use in the classroom and fully adapted to the requirements of the modern examination system, they provide substantial support for teaching and contribute to a better understanding and mastery of the material. <\/span><\/p> Of course, as part of this process\u2014in keeping with the needs of the times and with technology as our ally\u2014we created our own educational platform, the Artemis information system, through which we \u201copen\u201d the doors of our classrooms to you, the parents, every day. Through this system, our students gain access to a wealth of educational resources, constantly communicate with their teachers even outside of class time, organize their responsibilities, and stay informed about their daily progress. Furthermore, by equipping every classroom with state-of-the-art interactive whiteboards, we also ensure remote instruction in the event of a student\u2019s absence, fulfilling our promise that at DIAKROTIMA, not a single hour of class is ever truly lost. <\/span><\/p> Beyond the modern educational tools at our disposal, however, we never forget that our true strength lies in the human resources of our academic team. With teachers who are evaluated by the students themselves every year and who undergo continuous professional development throughout the school year, you can rest assured that your child\u2019s preparation is in the best hands. With the best teachers, the most rigorous mock exams every other Saturday, where scores are compared to average results, and the most comprehensive study guides from our publications, we can guarantee that success is assured. <\/span><\/p> The relationship of trust we have built over the years, as well as the results we achieve at the end of each year, prove us right.<\/span><\/p> Addressing you, the students\u2014both I myself, as a mathematician and President of the DIAKROTIMA Association, and all the teachers\u2014we assure you that our vision, for nearly three decades, remains the same:<\/span><\/p> Make sure you have the most powerful educational tools at your disposal for your difficult struggle, and receive the best education you deserve. Don\u2019t forget that we\u2019ll always be by your side until you achieve the victory you deserve. <\/span><\/p> Embark on a wonderful journey of discovery, without compromising your dreams and expectations.<\/span><\/p> The future lies ahead of you, and it’s yours!<\/span><\/p> <\/p> Theodoros Kalaitzidis <\/b><\/p> Mathematician <\/b><\/p> Founder & President of the DIAKROTIMA Tutoring Center Group<\/b><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t The DIAKROTIMA Educational Group operates in the field of tutoring for middle school, high school students, and graduates, with a steadily increasing number of students in all areas where its branches operate.<\/p> In 1997, Mr. Theodoros Kalaitzidis, a mathematician and the group\u2019s current president, founded the first DIAKROTIMA tutoring center in Piraeus. Our ambition has always been to provide tutoring support to our students with the sole goal of ensuring their future success. <\/p> This operating model for our pilot tutoring center was developed quickly, and more than 100 centers throughout Greece are now operating based on it.<\/p> Since then, our work has continued to grow year after year, enabling more than 25,000 of our students enter higher education at colleges and universities and go on to become distinguished scholars and successful professionals.<\/p> Now in its third decade, the DIAKROTIMA educational group is the largest chain of tutoring centers in Greece, holding two comprehensive quality certifications\u2014ISO 9001 and ELOT 1433\u2014from Lloyd\u2019s’s Register of London, three top education awards (Gold in 2019, Silver and Bronze in 2021), as well as eight business awards for franchise chains.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t With more than 100 tutoring centers in operation, 1,331 teachers, and approximately 145,419 students on an annual average, the educational organization DIAKROTIMA is the leading tutoring organization.<\/p> Our tutoring centers offer 67 unique titles of study guides for middle school \u2013 high school, career guidance and counseling programs for parents and students, a study guide with useful information, state-of-the-art audiovisual material with interactive whiteboards that aid in learning the course material, as well as the best pedagogical teaching methods applied by teachers with extensiveand a proven track record in teaching and writing.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t At DIAKROTIMA Tutoring Centers, we consider it our duty\u2014as the largest tutoring organization\u2014to stand by children and families who are in need and require all of our support, especially during these difficult times.<\/p> For many years now, we have been supporting the following nonprofit organizations by providing them with free classes as well as financial assistance, basic necessities, food, and school supplies.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t Make-A-Wish is a global organization that grants a wish to every child with a serious illness.<\/p> Make-A-Wish\u2019s programs are for children ages 3 to 18 who are suffering from serious illnesses, giving them hope to continue their fight.<\/p> We were truly captivated by their work and became an official sponsor of Make-A-Wish Greece.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t The Hatzikyriakeio Child Protection Foundation is a historic child protection organization in Piraeus.<\/p> The DIAKROTIMA Tutoring Centers simply couldn’t help but stand by the children, especially those who need it most.<\/p> Every year, we collect food, school supplies, and basic necessities and deliver them to the Hatzikyriakeio before the holidays.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t “The Smile of the Child” is an organization that needs no further introduction for the work it has been doing all these years to support children facing difficulties in every corner of Greece.<\/p> We first came into contact with \u201cThe Smile of the Child\u201d thanks to a man who won a DIAKROTIMA scholarship in a radio contest and wanted to donate it to \u201cThe Smile of the Child.\u201d<\/p> We then took immediate action and gave many children throughout Greece the opportunity to take free classes at our tutoring centers. <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\tA Historical Overview<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\tCorporate Social Responsibility<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
Make a Wish<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\tHatzikyriakeio Foundation for Child Protection<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
A Child's Smile<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t