Dear James Hopkins1,
Good day.
After thorough research and consulting, it’s been concluded that Currently, Microsoft Teams does not support inputting a range of marks for each level within a rubric1. You can only assign a specific point value to each level.
As workaround you can Assign a specific point value to each level and include a detailed description that explains the range of marks. For example, you can set Level 5 to 20 points and mention in the description that it represents a range of 17-20 marks.
Manual Adjustment:
After selecting a level in the rubric, manually adjust the total points for the assignment. This way, you can select Level 5 and then manually enter the exact mark (e.g., 18) in the overall grade field.
We apologize if we are not able to meet your requirements; however, thank you for bringing this to our attention, we will surely raise you concerns to our Product Team and hopefully this can be included in the future updates. In the meantime, please feel free to post this in our Feedback community by visiting Microsoft Teams · Community as it is a community monitored by our Product team to help improve user experience with Teams, via feedback given by our valuable customers. For other concerns, please do not hesitate to add you post in the Microsoft Community Team. Thank you for choosing Microsoft as your partner in business.SincerelyEben Ezer Tres | Microsoft Community Moderator