3月13日，河北一所小学举办迎“π日”趣味背诵活动，学生们通过背诵位数比赛、“π值”接龙游戏等趣味活动，加深对圆周率的理解记忆，提高对数学的兴趣。3月14日是“国际圆周率日”，又称“π日”，也是“国...
3 13 July, a primary school in Hebei held welcome "Pi Day" interesting recite activities, students by reciting, "Pi" digit game solitaire games and other fun activities, to deepen the understanding of PI memory, improve their interest in mathematics. March 14th is the "international Pi Day", also called "Pi Day", but also "in china...
