Usages of начало
Учитель просит внимания перед началом урока.
The teacher asks for attention before the start of the lesson.
В начале фильма мне было скучно, а потом стало интересно.
At the beginning of the movie I was bored, but then it became interesting.
Elon.io is an online learning platform
We have an entire course teaching Russian grammar and vocabulary.