This is a soft command or instruction, often used by parents to children or teachers to students. It's less forceful than the imperative form, conveying a gentle suggestion or order. It means 'do...'. Attach it to the masu-stem of verbs.

「〜しなさい」のように、命令や指示を柔らかく伝える時に使います。動詞のマス形に接続します。