This is the 5803rd most frequent Japanese word.
はじまっ
"はじまっ" is a conjugated form meaning "to begin" or "to start."
In this sentence, '始まる' conveys the planned initiation of a new project, emphasizing the future aspect of the beginning.
新しいプロジェクトが来週から始まる予定です。
A new project is scheduled to start next week.
The term 'はじまります' is used here to indicate the starting time of the school, representing the concept of beginning or initiation.
学校は8時に始まります。
The school starts at 8 o'clock.
Here, '始まった' is used to signify the commencement of the game, expressed in the past tense to indicate the action has already begun.