I am a mathematics professor . I have been teaching in private schools in Athens Greece since 2004. I have taught more than 1500 students ,in classes ,on one -to-one tutoring and on-line lessons. Since 2018 i have focused on the IB mathematics preparation and curriculum giving online lessons to English – speaking students all over the world. I have designed , edited and written maths textbooks , supporting material for Ib examinations and inclunding the Greek panellenic examinations.Ι encourage and train my students in thinking , exploring and developing critical thinking rather memorising and reproducing