I have taught for 20 years and I still have a lot to learn.
I want to start SBG this fall and I have been wrestling with this very issue over the past couple of weeks.Marzano has some interesting work on this (Classroom Assessment & Grading that Work) and he uses a 4 point scale with the possibility of 0.5 intervals.Near the end of the book, he addresses the process of assigning letter grades (something he suggests schools should abolish, but acknowledges that the system isn't changing anytime soon). He gives the following scale:3.00-4.00 - A2.50-2.99 - B2.00-2.49 - C1.50-1.99 - Dbelow 1.50 - FHe admits that the definition of grades is somewhat arbitrary.Since I need to convert these scores to percents anyway, I've been wondering if I should just bypass the whole 0-4 point scale, and just have 100% mean "exceeds what was taught in class", 90% mean "meets expectations", 80% mean "meets expectations with minor errors", etc. The simpler the system, the better for my students.
Having no experience with SBG (yet) my advice may not be so sound, however, the scale that rang the most true for me was 4pt.0 - No Record (F)1 - Needs Development (F)2 - Approaching Proficiency (D)3 - Proficient (B)4 - Master (A)I also deem a 3.5 (A) to be Approaching Mastery where students make minor mistakes and it would correspond to 90% rather than 100%.At first I was uncomfortable with not having a C in my scale, however when it comes to performing a mathematical task, do we need to be average? Either we are able to demonstrate it or we are not. When it shakes down into quarter grades I am going to end up averaging (which I've read isn't the best, but I'm taking baby steps) with a scale similar to college grades:4.0 - 100%3.5 - 90%3.0 - 80%2.5 - 70%2.0 - 60%<2.0 - FailMy school's passing grade is a 60% which may not be true at yours and thus your scale may have to adjust. I'm hopeful that this will work out for me and hopeful that you find something that works for you!
Lisa,I'm thinking of using a 5-pt scale this year too (not having tried anything like this before). I like your descriptions of what the numbers mean - here's how I was going to translate them to a grade:0 - 0%1 - 35%2 - 55%3 - 70%4 - 85%5 - 100%My rational behind all of this is: what grade do I want to give a student who has mostly 1's and 2's? Mostly 2's and 3's? Mostly 3's and 4's? Mostly 4's and 5's?The 1 and 2 student is not proficient most of the skills in this course - they don't deserve to pass. 35% and 55% will always average to a failing grade. Also, there is no ambiguity about what the next step is - their grade will always be low enough that they NEED to relearn and reassess.The 2's and 3's kid will be on the cusp - if there are a few skills he/she is weak on, it won't be enough to cause them to fail, but they'll need to be stellar in other skills in order to offset the 55%. I'm okay with this. If they really are a 2-3 student, they'll be right on the cusp of passing and will constantly.A 3-4's kid is a B/C student, and a 4-5's kid is a A/B student. If they have more 5's than 4's, their grade will average to an A, which I'm okay with. If it's more 4's than 5's, it'll average to a B. If they have mostly 4's, some 5's, and some 2's, then it'll average to a B or maybe a high C. All of these are things I'm okay with.Anyway - that's how I think about translating SBG into grades. At the end of everything, I want students earning at least a 3 on assessments, so I better make sure my grading scale almost forces them to do that.
At my district, we do the Marzano thing. The difficult part to remember is that a "3" isn't a "B" on the 1-4 scale. A "3" means proficient. Beyond that is a student who knows more than they are supposed to for that grade or course. That makes tons of sense until you have to convert it to a typical grade, where kids and parents want to see all A's, which are typically weighted as 4s.We do have the opportunity to use 3.5, 2.5, etc., and the rubric for grading each standard includes those. But, they didn't do a rubric for every standard, just the "core" or "power" standards that get put on the report cards.The other thing that takes a lot of getting used to is scoring at the beginning of the year. It's maybe not such a big deal in secondary, but elementary teachers are used to grading based on what the expectation is now. With the scale system they've been asked to grade against the end-of-the-year expectation. So, a straight-A student might start the year with a 1.5 on some standard because they are just learning it or it hasn't been covered yet. Parents are taking time to adjust to this, and some teachers can't bring themselves to do it, which skews things for everyone.No solutions to your questions, just telling you what we do.
I like that 5 break down. I have never done SBG before, but I really want to. Have you ever had any parents complain about the "I think you don't know it part" How do you back yourself if someone does have a concern?
Stephanie - I have never had a parent complain. Students have the opportunity to come in and reassess until the end of the grading period. Once I explain that to parents, they usually get on their kid's case to get in and reassess.
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6 comments:
I want to start SBG this fall and I have been wrestling with this very issue over the past couple of weeks.
Marzano has some interesting work on this (Classroom Assessment & Grading that Work) and he uses a 4 point scale with the possibility of 0.5 intervals.
Near the end of the book, he addresses the process of assigning letter grades (something he suggests schools should abolish, but acknowledges that the system isn't changing anytime soon). He gives the following scale:
3.00-4.00 - A
2.50-2.99 - B
2.00-2.49 - C
1.50-1.99 - D
below 1.50 - F
He admits that the definition of grades is somewhat arbitrary.
Since I need to convert these scores to percents anyway, I've been wondering if I should just bypass the whole 0-4 point scale, and just have 100% mean "exceeds what was taught in class", 90% mean "meets expectations", 80% mean "meets expectations with minor errors", etc. The simpler the system, the better for my students.
Having no experience with SBG (yet) my advice may not be so sound, however, the scale that rang the most true for me was 4pt.
0 - No Record (F)
1 - Needs Development (F)
2 - Approaching Proficiency (D)
3 - Proficient (B)
4 - Master (A)
I also deem a 3.5 (A) to be Approaching Mastery where students make minor mistakes and it would correspond to 90% rather than 100%.
At first I was uncomfortable with not having a C in my scale, however when it comes to performing a mathematical task, do we need to be average? Either we are able to demonstrate it or we are not. When it shakes down into quarter grades I am going to end up averaging (which I've read isn't the best, but I'm taking baby steps) with a scale similar to college grades:
4.0 - 100%
3.5 - 90%
3.0 - 80%
2.5 - 70%
2.0 - 60%
<2.0 - Fail
My school's passing grade is a 60% which may not be true at yours and thus your scale may have to adjust. I'm hopeful that this will work out for me and hopeful that you find something that works for you!
Lisa,
I'm thinking of using a 5-pt scale this year too (not having tried anything like this before). I like your descriptions of what the numbers mean - here's how I was going to translate them to a grade:
0 - 0%
1 - 35%
2 - 55%
3 - 70%
4 - 85%
5 - 100%
My rational behind all of this is: what grade do I want to give a student who has mostly 1's and 2's? Mostly 2's and 3's? Mostly 3's and 4's? Mostly 4's and 5's?
The 1 and 2 student is not proficient most of the skills in this course - they don't deserve to pass. 35% and 55% will always average to a failing grade. Also, there is no ambiguity about what the next step is - their grade will always be low enough that they NEED to relearn and reassess.
The 2's and 3's kid will be on the cusp - if there are a few skills he/she is weak on, it won't be enough to cause them to fail, but they'll need to be stellar in other skills in order to offset the 55%. I'm okay with this. If they really are a 2-3 student, they'll be right on the cusp of passing and will constantly.
A 3-4's kid is a B/C student, and a 4-5's kid is a A/B student. If they have more 5's than 4's, their grade will average to an A, which I'm okay with. If it's more 4's than 5's, it'll average to a B. If they have mostly 4's, some 5's, and some 2's, then it'll average to a B or maybe a high C. All of these are things I'm okay with.
Anyway - that's how I think about translating SBG into grades. At the end of everything, I want students earning at least a 3 on assessments, so I better make sure my grading scale almost forces them to do that.
At my district, we do the Marzano thing. The difficult part to remember is that a "3" isn't a "B" on the 1-4 scale. A "3" means proficient. Beyond that is a student who knows more than they are supposed to for that grade or course. That makes tons of sense until you have to convert it to a typical grade, where kids and parents want to see all A's, which are typically weighted as 4s.
We do have the opportunity to use 3.5, 2.5, etc., and the rubric for grading each standard includes those. But, they didn't do a rubric for every standard, just the "core" or "power" standards that get put on the report cards.
The other thing that takes a lot of getting used to is scoring at the beginning of the year. It's maybe not such a big deal in secondary, but elementary teachers are used to grading based on what the expectation is now. With the scale system they've been asked to grade against the end-of-the-year expectation. So, a straight-A student might start the year with a 1.5 on some standard because they are just learning it or it hasn't been covered yet. Parents are taking time to adjust to this, and some teachers can't bring themselves to do it, which skews things for everyone.
No solutions to your questions, just telling you what we do.
I like that 5 break down. I have never done SBG before, but I really want to. Have you ever had any parents complain about the "I think you don't know it part" How do you back yourself if someone does have a concern?
Stephanie - I have never had a parent complain. Students have the opportunity to come in and reassess until the end of the grading period. Once I explain that to parents, they usually get on their kid's case to get in and reassess.
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