Grille d'évaluation

La Grille d'évaluation est une méthode d'évaluation avancée utilisée pour des l'évaluation par critère. La grille est composée de critères. Chaque critère est divisé en plusieurs niveaux. L'évaluateur choisi ce qui correspond le mieux aux critères. Le total de la grille est calculé par la somme des notes entrées dans les critères. La note finale est calculée en comparant le score actuel avec le meilleur/pire score possible qui pourrait être attribué.

Éditeur de la grille

La grille d'évaluation est disponible via l'écran d'évaluation avancée, elle même visible dans le bloc réglages de l'activité. L'éditeur permet le paramétrage du nom, de la description et de la grille. L'éditeur permet également l'ajout de nouveaux critères et de niveaux, la suppression et l'ordre de ceux-ci. Les descriptions des critères, des niveaux et les points alloués sont aussi paramétrés avec l'éditeur de la grille d'évaluation. Veuillez noter que les champs de textes ne supportent pas les images encore.

La définition d'une grille d'évaluation soit être sauvegardée soit en cliquant sur "Enregistrer comme brouillon" ou "Enregistrer et utiliser maintenant".

Hint: You can modify the effective weight of a criterion by setting the value of the points assigned to its levels. If there is one criterion with levels 0, 1, 2, 3 and the second one with levels 0, 2, 4, 6 then the later one's impact on the final grade is twice as much as the first one's.

Hint: Use the Tab key to jump to the next level/criteria and even to add new criteria.

Using the rubric

Fichier:gradingfrom-rubric-usage.png

Filling the rubric to assess a submission in the Assignment module

When teachers use the rubric to assess some student's work, they select the level describing the student's performance best for each criterion. Currently selected levels are highlighted in light green. If the rubric filling is re-edited later, the previously selected level is highlighted in light red. A level must be selected for each criterion, otherwise the rubric is not validated by the server as the final grade can't be calculated.

If the form definition allows it, an optional remark can be filled for each criterion providing a detailed feedback/explanation of the assessment.

Grade calculation

The rubric normalized score (ie basically a percentage grade) is calculated as

$G_{s}={\frac {\sum _{i=1}^{N}(g_{i}-min_{i})}{\sum _{i=1}^{N}(max_{i}-min_{i})}}$

where $g_{i}\in \mathbb {N}$ is the number of points given to the i-th criterion, $min_{i}\in \mathbb {N}$ is the minimal possible number of points for of the i-th criterion, $max_{i}\in \mathbb {N}$ is the maximal possible number of points for the i-th criterion and $N\in \mathbb {N}$ is the number of criteria in the rubric.

Example of a single criterion can be: Overall quality of the paper with the levels 5 - An excellent paper, 3 - A mediocre paper, 0 - A weak paper (the number represent the number of points).

Example: let us have an assessment form with two criteria, which both have four levels 1, 2, 3, 4. The teacher chooses level with 2 points for the first criterion and 3 points for the second criterion. Then the normalized score is:

$G_{s}={\frac {(2-1)+(3-1)}{(4-1)+(4-1)}}={\frac {3}{6}}=50\%$

Note that this calculation may be different from how you intuitively use rubric. For example, when the teacher in the previous example chose both levels with 1 point, the plain sum would be 2 points. But that is actually the lowest possible score so it maps to the grade 0 in Moodle. To avoid confusion, it is recommended to always include a level with 0 points in the rubric definition.

How students access the rubric

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How students access grading forms

When students click on an assignment which has a rubric attached to it, they will see a link "Submissions grading" under the assignment name in their navigation block. Clicking on this will bring up the rubric in a new screen.

For students to see the "Submissions grading" link in their navigation block, then the following setting must be used in the Navigation block settings:

Generate navigation for the following --> Everything

Note: If you think it would be better for students to see grading forms directly on the assignment rather than via a link, then there is a tracker entry you might like to vote on: MDL-34095

See also

• School demo example of student view of rubric (Log in as username student/password moodle)
• School demo example of teacher view of rubric in student assignment (Log in as username teacher/password moodle)
• A first look at rubrics Screencast
• Advanced grading methods page for general concepts of advanced grading in Moodle
• Rubric description at Wikipedia
• Examples of Assessment Rubrics at Kathy Schrock's Guide for Educators
• Using Moodle Teachers can't create Rubric Templates forum discussion
• http://rubistar.4teachers.org/ - a free tool to help teachers create quality rubrics