Critical thinking as a key skill of every teacher is essential in guiding students through how to analyse, understand and evaluate vast amounts of information, how to argue, solve problems, recognize new possibilities and form their own opinion. More precisely, this book aims to present several practical exercises, techniques, case studies and examples which can be used in all educational classes with activities including tutoring students, preparing a final theses at all three stages of university study, and also in research activities of students as well as teachers. Our approach, to use elements of coaching as a fundamental base to foster critical thinking, at the HEI is fundamentally based upon "questioning". The ability to develop a meaningful and reflective discussion between teacher and students consists of open-ended questions which are a key prerequisite to developing critical thinking skills. We would also like to acknowledge the fact that our inspiration and practical abilities of critical thinking and coaching were sharpened during our attendance of several training workshops provided by local as well as foreign entities, e.g. Živica Zaježova, PDCS Bratislava, SAKO (Slovak Coach Association), Solution Focus, Switzerland and University of Cambridge. Some of the activities have been developed and tested in cooperation with students from the