It's Sunday morning. There are many people in the park, some boys are playing basketball. There are some girls under a big tree. They're singing and dancing. What are those women doing? They are drinking tea. Look at the woman in a blue coat. Who's she? She's my mother. She is talking to Edward. Edward is her student. He is a good student. He studies hard. He's good at all the subjects. And he's friendly to all his teachers and his friends.

一个十和五个一组成的数是（          ）。

某学校团委准备在全校开展一次以“校园暴力”为主题的教育活动，假若你是该校的一名学生，请你参与其中，展开讨论。