Students and teachers were allowed back in the school a little more than two hours later, arriving in front of the single-story stone building by bus, after a sweep by police and bomb-sniffing dogs turned up nothing, authorities said. “Everyone knows what to do and when you need to evacuate, and they did what they needed to do,” said Judy Finkelstein-Taff, the head of the school. Tuesday, and the staff decided to evacuate the building, according to police. A North Side grade school was among at least 12 Jewish schools and centers across the country that received bomb threats Tuesday, the latest wave in a pattern of anti-Semitic intimidation that began in early January, officials said.Ĭhicago Jewish Day School in the 5900 block of North Sheridan Road received the threat by phone shortly after 9 a.m.