Workbook №1 on the Russian language. Word composition. Grades 5-9. VIII type

Think about my friend, what will be speaking in this book. Of course, about the building material from which the words of our tongue are created. Everything in the world consists of something: forest - from trees, clouds - from water droplets. In words, there is also our own building material - this is only four bricks: a prefix, root, suffix, ending. Now listen to the fairy tale.
Housing was the root "uch". It became boring to live in the world alone, so he called for consoles, suffixes and endings. The root was united with them and turned into the root of a large family of words. His relatives were the words of a student, a student, training, memorial, scientist, teacher.
That"s so root, prefix, suffix, the ending together build words together, all together creating our native language