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iRubric: Subtractive Sculptures rubric

iRubric: Subtractive Sculptures rubric

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Subtractive Sculptures 
Giacometti Sculptures (Additive)
Students will learn about subtractive versus additive sculptures. They will receive a plaster and vermiculite mixture in a small ziplock bag which they will shape and let dry overnight. After removing the hardened substance, they will look at it from all sides to decide what kind of subject they will make. Using a plastic knife, they will carve the block into either a realistic or abstract form that can be viewed from all sides and results in a unified sculpture.
Rubric Code: C7X63C
By lhrberg
Ready to use
Public Rubric
Subject: Arts and Design  
Type: Assessment  
Grade Levels: 6-8

Powered by iRubric Subtractive Sculptures
Students will learn about subtractive versus additive sculptures. They will receive a plaster and vermiculite mixture in a small ziplock bag which they will shape and let dry overnight. After removing the hardened substance, they will look at it from all sides to decide what kind of subject they will make. Using a plastic knife, they will carve the block into either a realistic or abstract form that can be viewed from all sides and results in a unified sculpture.
  Beginning

No Key Elements are adequately developed

1 pts

Satisfactory

Satisfactory degree of competence

2 pts

Proficient

High degree of competence

3 pts

Figure: Abstract/Realistic

Piece is a unifed, aesthetically pleasing construction when viewed from all angles
Beginning

Piece has been carved
Satisfactory

Piece is a satisfactorily pleasing construction when viewed from one side
Proficient

Piece is a unifed, aesthetically pleasing construction when viewed from all angles
Construction & Detail

Model is secure, neat and balanced in a way that demonstrates control of media used and attention to detail.
Beginning

Model is loose, messy and unbalanced in a way that demonstrates limited degree of care in construction and no attention to detail
Satisfactory

Model is secure, and balanced in a way that demonstrates control of media used. Piece shows a satisfactory degree of care in construction and shows adequate attention to detail
Proficient

Model is strong, neat and balanced in a way that demonstrates control of media used. Piece shows a high degree of care in construction and shows very good attention to detail
Name

Name is such that it enhances visual experience of piece
Beginning

Name is an afterthought and detracts from overall unity of piece
Satisfactory

Name is satisfactory and enhance visual appropriate to piece
Proficient

Name is thoughtful and is such that it enhances visual experience of the piece
Materials

Beginning

Student wasted materials or used them inappropriately
Satisfactory

Student made good use of materials
Proficient

Student used materials thoughtfully and carefully or in an innovative way
Time

Beginning

Student finished project late, or turned in an incomplete project
Satisfactory

Student has finished project on time
Proficient

Student finished project early



Keywords:
  • Subtractive, plaster of Paris, vermiculite


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