Grade 8 3-D Model Assessment Rubric
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Design Process |
Level 1 |
Level 2 |
Level 3 |
Level 4 |
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- make increasingly more informed and accurate measurement estimations based on an understanding of formulas (8m42)
- solve problems related to the calculation of the radius, diameter, and circumference of a circle (8m37)
- show and explain the relationships between various units of measurement (8m40)
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-estimations made are unreasonable
- calculations are incorrect
- models reflect limited understanding of scale calculations
- work is not checked for miscalculations
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- estimations are usually reasonable
- calculations contain some inaccuracies
- models reflect some understanding of scale calculations
- work is rarely checked for miscalculations |
- estimations are reasonable
- calculations are usually accurate
- models reflect a clear understanding of scale calculations
- work is generally checked for inaccuracies
|
- estimations are very reasonable
- calculations are accurate
- models reflect a thorough understanding of scale calculations
- work is always checked for miscalculations
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| Construction Process |
Level 1 |
Level 2 |
Level 3 |
Level 4 |
|
- sketch and build representations of three-dimensional figures from front, top, and side views (8m62)
- identify, draw, and represent three-dimensional geometric figures (8m56)
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- the model is assembled but there are obvious flaws in the group’s constructions
- some components are missing or poorly constructed |
- the model contains some solid construction components
- there are some inaccuracies in the components and/or the assembly of them |
- the model is constructed and assembled accurately
- creativity and care are evident in the overall appearance of the structure |
- the model is constructed and assembled accurately
- significant care and creativity are evident in the overall appearance of the structure |
| Related Calculations |
Level 1 |
Level 2 |
Level 3 |
Level 4 |
|
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- calculations are attempted but are often inaccurate
- work is not shown |
- calculations are attempted but there are some inaccuracies
- work is sometimes shown |
- calculations are accurate
- a detailed description of the calculation process is evident but some steps are missing |
- calculations are accurate
- a detailed description of the calculation process is evident and written neatly using the correct units
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| Communication Phase |
Level 1 |
Level 2 |
Level 3 |
Level 4 |
|
- use writing for various purposes and in a range of contexts (8e2) |
- a report was not submitted, or the report is missing most of its required elements |
- the report submitted is missing some of the required elements |
- the report submitted is complete but contains some inaccuracies |
- the report is complete and contains evidence of extra thought and creativity |