I mentioned in a previous blog how I felt that my grading did not represent the true height of student learning but it did penalize the students for their early low scores.
Here are two possibilities:
1. Assign different grades different weight. Grades from the beginning of the project get 10% weight, middle get 30% and the ending ones get 60%. That way a grade of 60 (beginning), 70 (middle), and 100 (ending) results in a 90, rather than the average of 76. This can also work for lower-level thinking getting 10%, Application-Analysis getting 30%,and Synthesis-Evaluation getting 60%
2. Do not assign grades until the ending of the learning. Only give comments. If you use the same checklist/rubric, scale to assess the students, they can see their progress from time to time.