Re:Life as a public school teacher in the San Francisco Bay ...
by dragonwriter on Saturday June 19, 2021 @03:07PM
(#27563416)
> . The authors of _Grading For Equity_ spoke at my school and the reasoning they gave for eliminating 0-grading (i.e., not using 0 as the lowest possible grade) was because it's basically impossible to recover from.
It’s easy to recover from if you don’t use a stupid method if aggregation, but that takes actually thinking about what it is you are trying to measure; for instance, if you grade by % in each of several competency areas throughout the year, and have a final grade catehory standards (cumulative, so you get the highest grade where you’ve met all the standards):
D: median of competency area medians meets minimum proficiency standard
C: median score within every competency area meets minimum passing standard
B: median of competency area medians meets high proficiency standard or median in at least one competency area meets excellence standard
A: median of competency area medians exceeds excellence standard
(standards might be something like passing 70%, high proficiency 80%, excellence 90%, but the exact numbers aren’t the point.)
That will give you a measure of overall competence that isn't particularly sensitive to outlier scores on a single assignment, even if the assignment has components across many competency areas.
It’s easy to recover from if you don’t use a stupid method if aggregation, but that takes actually thinking about what it is you are trying to measure; for instance, if you grade by % in each of several competency areas throughout the year, and have a final grade catehory standards (cumulative, so you get the highest grade where you’ve met all the standards):
D: median of competency area medians meets minimum proficiency standard
C: median score within every competency area meets minimum passing standard
B: median of competency area medians meets high proficiency standard or median in at least one competency area meets excellence standard
A: median of competency area medians exceeds excellence standard
(standards might be something like passing 70%, high proficiency 80%, excellence 90%, but the exact numbers aren’t the point.)
That will give you a measure of overall competence that isn't particularly sensitive to outlier scores on a single assignment, even if the assignment has components across many competency areas.