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Exam 1 Grading

Posted: Mon Sep 29, 2008 11:26 am
by goodwine
Here is the grading method and point allocation for the problems in exam 1.
  1. Problem 1:
    • Homogeneous solution:
      • 4 points for proper method of determining roots
      • 2 points for computing the right roots
      • 2 points for the correct homogeneous solution
    • Particular solution:
      • 4 points for proper method (und coef or VoP)
      • 2 points for properly computing particular soluion
      • 1 point each for c1 and c2
    • 3 points for proper solution
    • Graph:
      • 1 point for oscillatory reponse
      • 1 point for decay
      • 1 point for proper initial conditions
      • 1 point for proper steady state value
  2. Problem 2:
    • 5 points for the right eigenvalues
    • Homogeneous solution:
      • 5 points for proper expression
      • 2 points for coefficients
      • 2 points for correct solution
    • Particular solution
      • 5 points for method
      • 5 points for correct computations
    • 1 point for combining everything properly
  3. Problem 3
    • Find f(x,t) 5;
    • Find g(x,t) 5;
    • Judgment of exact 4;
    • Integration w.r.t x 5;
    • Integration w.r.t t 5;
    • Final result: 1
  4. Problem 4
    • Equation derivation: 1 point for anything, 3-4 points for correct geometry, 9-10 for correct execution
    • Program: 14 points for correct form. -5 for incorrectly splitting up x and y. -5 for only x or only y