English language education in Brazilian private school systems is undergoing changes. Several school systems have opted for the implementation of an American high school curriculum using a Content-based Instruction (CBI) or Content and Language Integrated Learning (CLIL) curricular framework within which students apply their language skills to learning subject specific academic content. High School International (HSI) is one of the providers of a CLIL curriculum. In this descriptive case study of the implementation of the HSI CLIL curriculum in a private boarding school in the Southeast of Brazil respective stakeholders were interviewed and their experiences have been described and analyzed. Certain critical aspects have been identified. Involvement of the school principal and administration is one of the key ingredients of a successful implementation. Planning the implementation months in advance, such as preparing the curriculum, course outlines, and schedules, training of teachers, staff, and academic coordinator, definitely eases the whole process.

The thesis is focused on the implementation of method of content and language integrated learning in mathematics in the small school where several grades are taught in one class. The thesis is divided into two parts. The theoretical part deals with issues related to teaching of vocational subject in the foreign language. I define CLIL and show the opening implementation of teaching of this method in schools in the Czech Republic. Then, I concern the advantages and disadvantages of this method, the suitability of different subjects and to implement different variants of CLIL, which I can use while teaching at different stages of education in the Czech school system. The main aim of the practical part is to create educational materials and individual plans of lessons for teaching a curriculum of mathematics in English at the first stage of the primary school for grades 4 and 5, implementation of this method to teaching in selected small school and confirmation or refutation the statements of the authors of publications that, if implemented CLIL teaching at schools, it brings indisputable advantages for the whole educational process.

The aim of this dissertation is to investigate and characterize the innovative approach CLIL (Content and Language Integrated Learning), define the scope of the concept, establish CLIL teacher profile based on skill dimensions. The role of the teacher whether we introduce any innovative approach is crucial thus we need to define the CLIL teacher profile. To stipulate the CLIL teacher profile means to establish comprehensive implementation criteria for successful implementation of CLIL at school. The dissertation title - Teaching General Subjects through a Foreign Language as a Communication Tool - fully corresponds with the content of acronym CLIL. The theoretical part is divided into four sections. The first section discusses the assumptions and objectives of the work through the prism of three basic paradigms - philosophical, pedagogical and language. In the second section we define terms, we classify and describe the processes of pedagogical interaction and communication at school with an emphasis on CLIL. Attention is paid to the main stakeholders of these processes - teachers and pupils. In the third section we focus on the relationship between CLIL to bilingualism, to selected theories of language acquisition, curricular reforms and other selected aspects. In the fourth section, we present...