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Rubric for Toothpick Bridge
Points |
11 pts |
14 pts |
17 pts |
20 pts. |
Creativity
(20 Points) |
Flat Bridge (Does not resemble a major metropolitan bridge). Overuse of Glue and Toothpicks |
Excessive us of glue. Toothpicks are arranged erratically. |
Resemblance to a major bridge. Glue used excessively |
Resemblance to a major bridge. Very clean joints and supports. |
Engineering
(20 Points) |
Flat Bridge, Very Weak, No cross bracing |
Bridge does not have a sub-structure or super-structure. Over use of toothpicks (steel). Bracing does not aid to support. |
Bridge uses sub-structure/Super-structure, but appears to have weak joints. |
Bridge uses sub-structure/Super-structure. Structure appears to be strong. Uses appropriate amount of toothpicks (steel). |
Specs: (20 points)
Weight limit: 40 grams. (-1) for every 10 grams over.
Roadbed must be 40mm x 40 mm. (-4) for missing or small roadbed
Must provide space for hook (15mm x 15 mm) (-4) for no hole
Toothpicks may not be coated or sprayed with glue or any other substance (-10) for covered in glue or spray.
Weight held: (20 Points)
Weight Held (kg) 20pts. (0-3kg= 0 pts., 3kg=10 pts., >3 distributed in Equation)
Design: (20 Points) -Each design must be detailed with appropriate labels.
(10/20) if unacceptable. May resubmit for 15/20
Overall Scoring:
Design (20pts): ____________
Specs (20 pts: ____________
Weight Held (20 pts.): ____________
Creativity (20 pts.): ____________
Engineering (20 pts.): ___________
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