According to See You at the Pole™, SYATP is "a global movement of prayer which is student-initiated, student-organized, and student-led. It revolves around students praying together on the fourth Wednesday in September, usually before school and usually at the school's flag pole. It involves student in elementary schools, middle/junior high schools, high schools, and colleges/universities across the globe. Adults often pray in support of the students on campus by gathering nearby, at their places of work or worship, or at city halls."
It's a great time to pray with your students for their schools. You might need to find out first if you're welcome on school grounds, I know one youth pastor who was kicked off school grounds for fear he was selling drugs.
It's also a great idea for your youth leaders (or aspiring youth leaders) to get involved with the students more. Have a different leader or two go to each of the schools your students attend to meet with them and pray with whoever shows up at their flag pole.