psy_3, che_4, phy_2

Question 1

well-defined problem

Answer 1

clear goal, correct solution

Question 2

ill-defined problem

Answer 2

fuzzy goal, unclear best solution

Question 3

trial-and-error

Answer 3

guess combinations, random inefficient

Question 4

algorithm

Answer 4

start with 1-1-1, systematic efficient

Question 5

means-end analysis, problem-solving heuristics

Answer 5

sub-goals

Question 6

working backwards, problem-solving heuristics

Answer 6

solution–>start