In the opening assembly, Thursday night’s Speak Up for Education focused on a plan to make the Bulloch County Schools a Strategic Waivers School System. But in breakout sessions that followed, most of the talk was about individual schools’ ongoing efforts to improve, and principals said they don’t know yet what waivers from state rules they might use. The district is asking the State Board of Education for a five-year contract granting waivers from about 30 specific state laws and regulations on things as class sizes, teacher certification, required classroom time and spending controls.