This file contains two parts for assessing in-class student debates which can be used together:
Judges Scoring Sheets- This file contains a scoring sheet for debate teams of 2, 3, and 4 students. There is space for judges comments, students' evidence and support, and rebuttals. When I used it, to make it easier on the judges, I had students write in the evidence they planned to use in their debate and then I made copies for all of the judges. That way the judges could focus on the student's delivery instead of trying to write down what the student said.
Debate Grade Rubric- This file contains a rubric for 2, 3, and 4-person debate teams. There are four categories to be scored in this rubric: individual score, team score, time, and research quality. The individual score is determined by the average of the judges' scores for that individual. The team score is determined by the average of the judges' total scores for the team. This works well to take into account the difference in rigor of different judges.
I found this setup helpful so that I didn't have to think about individual students' debate grades while I was judging. The rubric takes care of students' grades afterwards and helps make the grading more objective.
(It is easiest to have teams of 3 students.)