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Appropriate materials were selected and creatively modified in ways that made them even better.
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Appropriate materials were selected and there was an attempt at creative modification to make them even better.
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Appropriate materials were selected.
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Inappropriate materials were selected and contributed to a product that performed poorly.
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Great care taken in construction process so that the structure is neat, attractive and follows plans accurately.
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Constuction was careful and accurate for the most part, but 1-2 details could have been refined for a more attractive product.
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Construction accurately followed the plans, but 3-4 details could have been refined for a more attractive product.
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Construction appears careless or haphazard. Many details need refinement for a strong or attractive product.
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Plan is neat with clear measurements and labeling for all components.
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There is no alternative for this
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Plan is neat and provides clear measurements and labeling for most components.
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Plan does not show measurements clearly or is otherwise inadequately labeled.
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Clear evidence of troubleshooting, testing, and refinements based on data or scientific principles and/o trail and error.
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Clear evidence of troubleshooting, testing and refinements.
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Some evidence of troubleshooting, testing and refinements.
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Little evidence of troubleshooting, testing or refinement.
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Structure functions extraordinarily well, is able to navigate the terrain course, holding up under the atypical stresses.
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Structure functions well,is able to navigate the terrain course, holding up under typical stresses.
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Structure has difficulty functioning on the course, and may even start to deteriorate under typical stresses.
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Fatal flaws in function of the course and propulsion with failure under typical stresses.
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