28 July 2023
Grading Discussion in Science from 2008
I think we as a science department should be on the leading edge of this conversation about how we grade. We are in a unique position because by our training we have both the conceptual and mathematical skills to understand grading well. As I listened to conversations on Thursday I realized that many of the statements people were making were simply bad math. Truly just gut feelings draped over a poor understanding of math. And I don’t want to beat up on anyone here—I hope that we can lead on this issue by finding gentle ways to explain how the mathematics of grading work. In addition I think that we can influence the discussion, not to change all grading, but to reexamine why we grade.
Goals:
Review the research on grading (both assessment and evaluation).
Engage in professional conversation to understand the purpose of grading.
Make decisions on a grading system that is “tight” enough to make student and parent understanding easy and “loose” enough to allow flexibility for individual teachers.
Marzano’s Complete Scale Adapted from 0-4 to 1-5
Traditional Grade Conversion (Recommended by Marzano)
I have tried here to faithfully represent Bob Marzano’s recommendations from his books and from a recent conference. He very much approves of the complete scale (see his book Classroom Assessment and Grading that Work) but realizes that in the real world conversions need to be made. So when pushed he said you could convert to the A, B, C type grades. He was even more reluctant to convert further to percentages grades (because his whole approach circles around the idea that 101 categories is not the way to go) but when asked he advised a conversion that included standard intervals.
The second table is one possible way of grading in a competency system. (My idea.) INC until competency is met. The INCs however would only appear at the end of a marking period. Up until then students would see their point scores—so they could keep track of where they were. Point Conversion (reluctantly recommended by Marzano)
5.0
A+
100
4.5
A
95
4.0
B+
89
3.5
B
85
3.0
C+
79
2.5
C
75
2.0
D+
69
1.5
D
65
1.0
F
55
Marzano’s Complete Scale Adapted from 0-4 to 1-5
Traditional Grade Conversion (Recommended by Marzano)
Point Conversion (reluctantly recommended by Marzano)
5.0
A+
100
4.5
A
95
4.0
B+
89
3.5
B
85
3.0
C+
79
2.5
INC
INC
2.0
INC
INC
1.5
INC
INC
1.0
INC
INC
To be clear Marzano’s complete scale does include 9 categories. But just because you are seeing .5s it does not mean that there are other decimals available. In his system there are only 9 categories. His book enumerates each category and the simplicity is that all rubrics can be built from this system.
An Example of Understanding
- Washington never told a lie and cut down the cherry tree.
- Lincoln freed the slaves and was assassinated.
- Jefferson was a great man that lived at Monticello, was a great president and a great Virginian.
- Going to moon was all about going to the moon.
- Dropping the atomic bomb on Japan saved lives and ended a terrible war quickly.
Meaning making
Education and Science from 2008 Never Published
Timeline of a Job I didn't get
My wife saw an ad on EdJobs NH for a position at Souhegan High School. They requested a new Dean of Faculty who could help them continue their mission. They asked for all the traditional things but also a values statement and most interesting--a document explaining how the candidates strengths met the Souhegan mission. It was the most interesting job posting I had seen and the only one in 10 years that I was even mildly interested in.
My mantra throughout my Concord career has been that I would like to advance but I would also very much like to stay in Concord. My wife grew up near Concord, we go to church in Concord, we would like our kids to be educated in Concord. We are currently moving to Concord from nearby Barnstead. So even though the Souhegan opening was interesting I left it alone.
The Non Snow Day Snow Day
In February there was a snow day where it didn't actually snow. This was the day my annual review was scheduled so I decided to drive to town for it. I had worked really hard during the year and my hope was that my assessment job could be turned into a full time one rather than a part time one. The review of my performance was good but there was no way the job could become a full time one.
At this point I began to consider the Souhegan position. I was committed to staying in Concord but I was also interested in obtaining a full time position. I like working all year round. I enjoy using the summer, time off from students to consider how to to help them in a more effective way. Just like
From 2011 on Khan
I must respond--Competencies
Very old. 2009. Could turn into something.
One comment:
Competency Based Ed is a new name for Outcome Based Ed. Google Peg Luksik/ you tube/ and she will explain what OBE is all about. It's snake oil folks.
No, wrong. Outcome based education was an excellent idea that we implemented in a poor way. Outcomes were excellent ideas. Measuring how students get to outcomes was not done well. In the outcome based education model a student was told that they met the outcome if they answered a certain %age of questions correctly. This is not understanding.
Competencies are an advancement of outcomes because it means that students must prove that they know a certain amount of material.
Khan
Interview
Overall Focus--Student Learning
- Curriculum--I feel that we need to make sure to continue (as a school) to focus on competencies and to focus revising and refining the existing competencies. And where possible we need to examine how we can do this in a collaborative way.
- Instruction--The teachers at CHS are excellent but there are always new strategies to consider and especially new ways of planning instruction in teacher groups. It is also has become more and more important to be clear about the goals. Real world skills are being stressed more and more by teachers and politicians and other leaders.
- Assessment--How can we increase student assessment of their own work? Not evaluation (grading) but creating a system where students regularly look at the work that they have created and compare it to the goal. When a person is working on re-doing a roof they should regularly look at other roofs that are well installed. Or when working on a writing sample writers might look at exceptional writing samples.
- Climate and Culture
- Administration and Support
Kahn Mathematics Experiment
Thoughts
A very simple one. These should be put into a bigger and better article someday.
Thoughts from Tom
Read The Souls of Black Folk by WEB DuBois.
Listen to David Blight’s semester class from Yale on the causes of the civil war.
Read Self Reliance by Emerson.
Read Good to Great by Jim Collins.
Read some Calvin and Hobbes.
Have kids write more and create fewer powerpoints.
Don’t be an over-delegator.
Don’t be an under-delegator.
Tell people, clearly, what you want to see from them.
Use a style guide like Brian Garner’s Dictionary of Modern American Usage but don’t be an asshole about it.
Eschew Buffalo wing analogues.
September 11
9/11/2001
Minus Post 1
I didn’t feel well. I was up at four AM and considered calling in sick for the day. I’m not sure what made me decide to go.
On the way to school I bought something, a beverage or something, at Cumberland Farms. Leaving the store I walked between two dumpsters without noticing they were being picked up. If the operator had moved the dumpster forward I could have been crushed.
My morning of teaching was uneventful. I taught what I needed to teach for my chemistry class and when the bell rang at 9:15 the class was dismissed. I don’t know who told me to turn on the TV during the passing time but I did. They were already replaying the video of the first plane hitting the towers. At first I thought it was a Cessna that had gotten off track. Then as I realized what was going on I realized that the scale of a cessna to the towers was off. This was a big plane.
It was such a beautiful day. I went on a bike ride with a friend of mine and the silence, after a day of TV, was surreal. It was such a beautiful day.
In the days after I thought: “What if we had the balls to send peace?” Could we, would we be bold enough to execute the greatest turn the other cheek in the history of the world? Instead of attacking as everyone said we must, why not send people and love and friendship. For the first time in the world a country would not fight war with more war and -- and here I got a little crazy even for this crazy notion -- the world would follow and there would be peace. (I learned -- only this year -- that Stanley McCrystal was reflecting on the US response after 9/11 and said that he would have like to spend a year doing nothing military. A year to teach 10,000 Americans Dari/Farsi and Pashto and Arabic. A year to better understand what just happened and plan the response.)
In Star Trek First Contact, the captain explains to the people of earth’s past that after humans realized that they were not alone in the universe they stopped all wars and came together. Could 9/11 be something like that for the real humans instead of the fictional ones of the Star Trek franchise? No.
No, it could not. And as time wore on I began to think that maybe the human race won’t ever get to peace. Our ability to solve problems with one another amicably and peacefully is not only lacking -- it seems to be getting worse. On 9/11 I was in my late 20s. Now, nearing 50, I have started to think about what I have accomplished in my own life and what humans will have accomplished during my brief time here. I’m hoping for a lot more.