You should absolutely use Gradescope to grade, for the benefit of students and yourself. Take advantage of the Gradescope keyboard shortcuts to really speed grading up.
For more information, see Setting Up Gradescope.
If you were not provided a rubric to grade with, you can use the rubric below.
This rubric is intended for quick and coarse grading, by swiftly classifying student work into broad categories ("nearly/mostly correct", "somewhat correct", and "incorrect") and providing a rough guide to point deductions for each category.
Rubric by Elle Monroy.
In Gradescope, this rubric can be implemented using the groups below (via "Create Group").
> Correct method with minor mistakes(s) [deduct 1-20%; mark all that apply]
Examples of rubric items in this rubric group:
Unit errors: incorrect unit conversions, missing units, incorrect units [-3%]
Minor algebra mistake(s) [-3%]
Calculator error(s) [-3%]
> Correct method with major mistakes(s) [deduct 21-40%; mark all that apply]
Examples of rubric items in this group:
Student used the correct method/equation, but used incorrect values in the equation which may demonstrate a misunderstanding of the terms in the equation. More specific examples:
Student is asked to solve for the electric potential at a specific point due to several charges. Student solves for each electric potential using kq/r, but plugs in the magnitude of the charge |q|. [-20%]
Student is asked to solve for the time constant of an RC circuit with two resistors in parallel. Students applies t=RC, but the effective resistance is incorrect (because the student did not correctly identify the resistors as being in parallel, etc). [-20%]
> Incorrect method, or incomplete [deduct 41-100%; do not mark any rubric items from the groups above]
Incomplete, but appears to be on the right track [-50%]
Incorrect approach [-70%]
The derivation is very difficult to follow or impossible to follow, many steps in the derivation are missing [-90%]
No attempt, or some irrelevant equations from an equation sheet were simply copied on the page [-100%]