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iRubric: SHADING SHAPES & FORMS in a still life rubric

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SHADING SHAPES & FORMS in a still life 
Students will demonstrate shading skills using graphite pencils in order to turn flat shapes into three dimensional forms. Students will effectively use a light source, a full range of values, and highlights in their assessment.
Rubric Code: Y97AC5
Ready to use
Public Rubric
Subject: Arts and Design  
Type: Project  
Grade Levels: 6-8

Powered by iRubric SHADING SHAPES & FORMS
  Highly Effective

4 pts

Effective

3 pts

Not Effective

2 pts

Unsuccessful Attempt

1 pts

FULL VALUE RANGE

Highly Effective

Extremely effective in demonstrating ability to blend with the pencil tip to create a full range of light, medium and dark values.
Effective

Effective in showing a value range that contains light, medium, and dark values. Shading may appear striped and/or un-blended.
Not Effective

A partial value range was demonstrated. Blending was minimal, if present at all.
Unsuccessful Attempt

Limited effort was attempted to blend and/or to show a variety of values.
LIGHT SOURCE & REFLECTED LIGHT

Highly Effective

Light source is dramatic and obvious. The lightest values are closest to the light source. Edges of surface closest to light source have been lightly erased to show implied lines. Reflected light is shown in darkest values on the opposite the light source.
Effective

Light source is evident. Darkest values are located opposite the light source. Reflected light has been added.
Not Effective

An attempt has been made to create a light source. It may not be lined up with the lightest values of the object. Reflected light may have been added, though not in the correct spot.
Unsuccessful Attempt

Limited effort was attempted to use a light source or reflected light.
NEAT & COMPLETE

Highly Effective

Work is extremely neat and complete. Edges of the forms are sharp and clean. Values blend smoothy. Only whites in the form are the extremely light values.
Effective

Work is fairly clean and neat. Most smudges and extra lines have been erased. Edges are somewhat clean and sharp. Some white paper is visible in the darker values.
Not Effective

Weak effort given to erasing smudges and cleaning edges. Sharpness of edges is not consistent in work. White areas may be in areas other than the light values.
Unsuccessful Attempt

limited effort, if any effort, is given to erasing smudges and making edges sharp. White paper showing throughout.
Shapes and lines

Highly Effective

Shapes are realistically drawn overlapping is done accurately. Objects are related to each other in size.
Effective

Some shapes are realistically drawn but the proportion is distorted.
Not Effective

An attempt has been made to draw shapes as observed, but student has obvious mistakes in proportion and little attempt to overlap.
Unsuccessful Attempt

Limited effort is used to draw what is seen.
Implied texture

Highly Effective

Lines and shapes are added to imply texture as observe on all objects.
Effective

Some objects are drawn with implied texture, some are not.
Not Effective

Objects have texture that is not observable.
Unsuccessful Attempt

Limited effort to show any change in texture.



Keywords:
  • shading, light source, values







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