I'm coming to the end of our first trimester. I've been importing grades and assignments from google classroom. When I start the new trimester I only want my GradeBook to reflect the work that students complete during that timeframe and not the previously assigned work. How do I set up my GradeBook to reflect assignments from a specific time period or date range?
I get this error one one of my sheets. What does it mean? I cannot send email reports from that sheet anymore.