Find the equation describing the maximum recoil energy of the electron and evaluate it for E = 1 Me V.
The drawback to this method is that it can sometimes unfairly penalize a student who has a good understanding of the problem but makes a lot of minor errors.
Also, one must assign a point-value to every type of error made by your students, and the variety of mistakes can be staggering.
Additionally, grading provides students with feedback on their own learning, clarifying for them what they understand, what they don’t understand, and where they can improve.
Grading also provides feedback to instructors on their students’ learning, information that can inform future teaching decisions. Because grades are used as evaluations of student work, it’s important that grades accurately reflect the quality of student work and that student work is graded fairly.
Often holistic rubrics are the most efficient, consistent, and fair way to grade a problem set.
When starting to grade a problem, it is important to think about the relevant conceptual ingredients in the solution.Incorporating the strategies below will not eliminate the stress of grading for instructors, but it will decrease that stress and make the process of grading seem less arbitrary — to instructors and students alike. In particular, if you have students do some small assignment before class, you might not need to give them much feedback on that assignment if you’re going to discuss it in class.Multiple-Choice Questions – These are easy to grade but can be challenging to write.Then look at a sample of student work to get a feel for student mistakes.Decide what rubric you will use (e.g., holistic or analytic, and how many points).Also, some instructors find that their students’ focus or even their own focus on assigning numbers to student work gets in the way of promoting actual learning. Light Grading – Bear in mind that not every piece of student work may need your full attention.Given all that grades do and represent, it’s no surprise that they are a source of anxiety for students and that grading is often a stressful process for instructors. Sometimes it’s sufficient to grade student work on a simplified scale (minus / check / check-plus or even zero points / one point) to motivate them to engage in the work you want them to do.Apply the holistic rubric by marking comments and sorting the students’ assignments into stacks (e.g., five stacks if using a five-point scale).Finally, check the stacks for consistency and mark the scores.The best part about a rubric is that it provides a "working guide" for both the instructor and the students as they strive to complete the assignment.It is customary for the rubric to be available to the students before the assignment is due so that they will know what level of performance is expected.