Grenville Grader Plus - Version 3.52 Grenville Grader Plus is a teachers' gradebook, handling as many as 90 students per class. Many features, yet easy to use. Spreadsheet grade entry, graphs, statistical measures, many ways to sort and print grades (reports), editor, lesson planner, auto-dialer, and much more. Registering either GVG Plus or Grenville Grader registers both programs. GVG Plus uses 50-line text mode and therefore requires VGA (unlike GVG). DOS required, 555K, mouse optional, now $25US !