There are different approaches to teaching English around the world. In some countries, especially for younger pupils in school, English lessons are a relatively quiet experience. There is a teacher at the front of the class explaining what words mean, and how they are used in sentences, and grammatical rules. The learners quietly take notes. There will be a test soon to check they were listening and have “learnt” the new English.
In the UK this teacher centred approach would be generally regarded as an old fashioned way of teaching English. If you book an English language course, including Cambridge examination courses such as The First Certificate Examination or Cambridge IELTS, at a language school in the UK, DO NOT expect to be taught in the way described above.