problem solving model - engineering fluid...
TRANSCRIPT
Define the situation
Identify the goal
Generate ideas for reaching the goal. Select best ideas.
Make a step-by-step plan for implementing
the ideas
Take action (execute the plan).
Review the solution. Review the process.
Solidify knowledge gains.
what are the facts?what is the problem?
what results do I want?
what ideas (physics) will help me?
what steps should I take?
what next?
did I reach my goals?how I improve my process?what did I learn?
Wales/Woods Model of Problem Solving (PDM)
Classification of Problems
Decomposition: Break the big problem into small problems
Iteration. Solve problem multiple time
Simpler Problem: Redefine the problem so it is simpler and solve this.
Troubleshooting: Trace the error, then fix it.
how can I break this problem into parts?
can I go just through this and see what I learn?
can I solve a simpler problem?
where is the error occuring (what subsystem)?what is the error?
Strategies for solving problems
Type 1: Real World Problem
Type 2: Academic Exercises (given, find)
Type 3: Puzzle or challenge
how can I get started?
can I find an example?how do I get the answer?
how can I figure this out?
Problem
Problem Solving Model
what? PDM is a method for attacking real world problems; also works on academic exercises
why? solve problems better; become more aware of how to solve problems; better team work
when? * on tasks* all the time because this builds up skills
where? school, job, personal life
how to you do PDM?* ask questions* learn over time* adapt to how you do things* adapt to each context
!
task labeling: 2
situation diagram: 3problem description: 2parameter values: 3assumptions: 2properties: (fluid, T, p, source): 2
description of goal: 2symbol: 2 unit: 2
"goal-based" reasoning: 10physics (labeled eqns): 15sketches (e.g. fbd, cv, ...): 5identification of 1, 2, etc.: 5term-by-term analysis: 5#eqns = # unknowns: 5step-by-step plan: 5
grid: 10organized calcs: 8boxed answers: 2
2-4 useful ideas: 10 * implications * validation * strengths * improvements * insights
feature: importance (5 is high)
Overalllogic/reasoning (why/how): 10labeled sections (situation, goal, ideas, plan, action, review): 5concise: 5readable handwriting: 3
TipsNo waste (busy work)Use the PDM process to serve your needsLearn one part at a timeMost important part to learn is ideas/planSecond most important part to learn is reviewTo save time, stop after idea/plan
Wales/Woods Model of Problem SolvingD
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red text describes"what to look for"
blue text describes "what to do"
20 p
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