Tracking every student’s move. Northside I.S.D. is rolling out new technology that does just that. At school, it can be hard to keep track of everyone. “I’m always worried about my daughter being at school,” said Ernest Castro, a parent. “I check on my kids everytime I come in, it’s like once a week I come in to check on the attendance,” said Gina Lopez, another parent. For lopez, knowing her kids are in class at Northside’s John Jay High School is about to get easier. The school is launching a pilot program to track students through a chip in their student I.D. cards.