A to Z Teacher Stuff ~ Teacher Resources, Lesson Plans, Themes, Tips, Printables, and more
advertise
Go Back   A to Z Teacher Stuff Forums > TeacherChat Forums > General Education



Reply
 
Thread Tools
  #1  
Old 02-18-2009, 12:38 PM
ILoveGrammar ILoveGrammar is offline
Novice
 
Join Date: Jul 2008
Posts: 68
CA
Middle School Teacher
Do you use Rubrics? How do you convert to percentages?

Do you use rubrics? If so, how do you convert to a percentage grade? Big debate at my school and just wondering what you all think?
(FYI - in particular, as it relates to writing assignments.)

We have one group - they say total number points divided by total possible equals percentage. (Ex. 4 categories, 5 points for total of 20 points. Student scores 1 in each cat. 4/20=20%)
Other group - sliding scale, mathematical program that figures it out, something else.....

TIA!
Reply With Quote

 
  #2  
Old 02-18-2009, 12:49 PM
Beth2004's Avatar
Beth2004 Beth2004 is offline
Aficionado
 
Join Date: Jun 2004
Posts: 3,508
Massachusetts
5th Grade Teacher
I do what you described first: number of points divided by the total possible points.
Reply With Quote
  #3  
Old 02-18-2009, 02:19 PM
amakaye's Avatar
amakaye amakaye is offline
Enthusiast
 
Join Date: Oct 2004
Posts: 2,329
Midwest
3rd Grade--Lutheran School
I don't know what you would call it, but I make up a scale for each rubric. If it's a 5 point rubric, and they have mostly 5's, they get an A. If they have mostly 3's (or an average of three), they get a C, and so on. I assign the percentages to the scale. I feel that when I use a rubric, "average" work (say, mostly 3's on a 5 point rubric) should be a C. If I did a straight percentage, it would receive a failing grade.
Reply With Quote
  #4  
Old 02-18-2009, 03:31 PM
MrsC's Avatar
MrsC MrsC is offline
Multitudinous
 
Join Date: Aug 2005
Posts: 10,976
Ontario, Canada
Grade 7/8
Quote:
Originally Posted by amakaye View Post
I don't know what you would call it, but I make up a scale for each rubric. If it's a 5 point rubric, and they have mostly 5's, they get an A. If they have mostly 3's (or an average of three), they get a C, and so on. I assign the percentages to the scale. I feel that when I use a rubric, "average" work (say, mostly 3's on a 5 point rubric) should be a C. If I did a straight percentage, it would receive a failing grade.
This is pretty much what I do as well (except we use 4 levels on our rubrics).
__________________
It does not matter how slowly you go so long as you do not stop
Confucius

Reply With Quote
  #5  
Old 02-18-2009, 05:00 PM
silverspoon65's Avatar
silverspoon65 silverspoon65 is offline
Fanatic
 
Join Date: Aug 2007
Posts: 2,528
Pennsylvania
High School Teacher
We made up a scale. We have a 24 pt. rubric - 6 categories 1-4. I think when it was created, they said, ok, an 18 would be all 3's, so that is a B, 24 obviously is a 100, a 12, all 2's, should be failing. and then they just kind of filled in the blanks from there. We all use the conversion chart and most of us know it by heart.
Reply With Quote
  #6  
Old 02-18-2009, 05:47 PM
ancientcivteach's Avatar
ancientcivteach ancientcivteach is offline
Habitué
 
Join Date: Jul 2006
Posts: 809
Fifth Grade American History
http://roobrix.com/

I really like this tool, you can use it with any rubric to convert to percentages.
Reply With Quote
  #7  
Old 02-18-2009, 06:05 PM
CanukTeacher CanukTeacher is offline
Cohort
 
Join Date: Dec 2008
Posts: 529
Our A & E policy calls for "most consisent and most recent." So our grades need to reflect how students are consistently performing with an acknowledgement that if their grades go up or down significantly in second term the final grade should reflect this.

So when I look at my students grades for the semester I am looking at how they did overall in each of the categories (we have 4 categories - knowledge/understanding, thinking, communication and application). So it is not a percentage.

For example, if a student in knowledge had:

3-, 3, 3, 3, 3-, 3

They would receive a level 3 because that is they are, by in large, producing level 3 work.

At the end of the semester, all my grades are in levels. It is only the final mark that is "converted" to a percentage. The percentage isn't a real number it is essentially a symbol for the level because our politicians weren't brave enough to actually have us report in levels (even though we are supposed to mark in them

So, at semester's end we have a conversion chart for what a level 3 = in %.
Reply With Quote
  #8  
Old 02-18-2009, 06:34 PM
MrsC's Avatar
MrsC MrsC is offline
Multitudinous
 
Join Date: Aug 2005
Posts: 10,976
Ontario, Canada
Grade 7/8
Quote:
Originally Posted by CanukTeacher View Post
Our A & E policy calls for "most consisent and most recent." So our grades need to reflect how students are consistently performing with an acknowledgement that if their grades go up or down significantly in second term the final grade should reflect this.

So when I look at my students grades for the semester I am looking at how they did overall in each of the categories (we have 4 categories - knowledge/understanding, thinking, communication and application). So it is not a percentage.

For example, if a student in knowledge had:

3-, 3, 3, 3, 3-, 3

They would receive a level 3 because that is they are, by in large, producing level 3 work.

At the end of the semester, all my grades are in levels. It is only the final mark that is "converted" to a percentage. The percentage isn't a real number it is essentially a symbol for the level because our politicians weren't brave enough to actually have us report in levels (even though we are supposed to mark in them

So, at semester's end we have a conversion chart for what a level 3 = in %.
And this is exactly what I do (but was too lazy to type myself...thanks CanukTeacher).
__________________
It does not matter how slowly you go so long as you do not stop
Confucius

Reply With Quote
  #9  
Old 02-18-2009, 09:34 PM
ILoveGrammar ILoveGrammar is offline
Novice
 
Join Date: Jul 2008
Posts: 68
CA
Middle School Teacher
Thanks for the input everyone. My school wants rubrics for evaluating writing, but fails to determine HOW they want these rubrics evaluated. Thus, the divide among the teachers.
I see merit to all the evaluation options. I feel mostly closely aligned with Canuk's version, but they do not do that at my school
I'd love any other thoughts (Anything to build a better mousetrap, right?) as I continue to bring this debacle to a close.
Thanks!
Reply With Quote
  #10  
Old 02-18-2009, 10:39 PM
fuzed_fizzion fuzed_fizzion is offline
Comrade
 
Join Date: Aug 2008
Posts: 325
7th Grade Teacher
We use a 1-6 scale at our school because our state scoring guides are based on the scale. We convert to a percentage by adding the number of points earned on each category in the rubric and divide by 5*the number of categories. It helps the numbers fall closer with standard A,B,C,D,F and their respective percentages.
Reply With Quote
Reply

Tags
convert, percentages, rubrics

Thread Tools

Forum Jump

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off




Mr. Rebates

All times are GMT -6. The time now is 01:08 PM.


Copyright © 1997-2010 A to Z Teacher Stuff, L.L.C.  All Rights Reserved.
Use of this site signifies your agreement to the terms of use.
Questions, comments, and suggestions: Contact Us
Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.