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Problem SolvingUnit 2
Problem Solving
1. Define the problem – What is the problem?
2. Generate possible solutions – What are some things I can do to fix it?
3. Decide upon one solution – Pick one of the solutions
4. Implement the solution – Try out the solution
5. Evaluate the solution – Did this solution work?
6. Refine the solution – If not, try something different
The Engineering Design Process
• 8 steps
• Used often when creating a product
• Should follow the steps in order until they have been completed once
#1 - Identify the Problem
• What is the problem that is trying to be solved?
• Write a detailed statement about that problem.
• Example• Students continue to forget to bring their pencils to class. However,
when I let them borrow my pencils, they sometimes forget to return them. I need a device that will allow me to put class pencils together in one spot and something that will help me keep track of who borrows the pencils.
#2 - Research the Problem
• Examine current solutions
• Review the criteria and constraints
• Investigate related technologies, inventions, and innovations
• Example• I will look up current technologies that allow pencils to stay
together in one spot. I will also look up methods of keeping records.
#3 - Develop Possible Solutions
• Brainstorm possible solutions
• Analyze ideas through prior math and science knowledge
• Produce thumbnail sketches of possible solutions
• Example• Pencil pouch and sign out list
• Pencil cup and sign out list
• Piece of wood that holds the pencil with numbers next to holes
#4 - Select the Best Possible Solution
• Select one solution
• Refine the sketches into working drawings with annotations
• Example• Pencil cup with sign out sheet
Pencil Holder
Pencils
#5 - Construct a Prototype
• Prototype – working model
• Build a workable model of the product
• Example• The prototype
#6 - Test and Evaluate
• Does your prototype work?
• Collect data
• Example• The pencil cup worked great, but it took a long time to sign out
the pencils
#7 - Communicate the Solution
• Communicate the results of the solution
• Plan out the production of the product
• Example• A presentation of the data collect
• A chart showing the steps of how the product will be produced
Gather the material
Measure the material
Cut the material
Sand down the cut edges
Nail the 5 pieces
together
#8 - Review and Redesign
• Collect and review feedback
• Identify weaknesses and strengths
• If your design does not solve the original problem, redesign
• Redesign – go back through the loop and see where you can make changes
• Example • The sign out sheet is too time consuming. I am going to go back to
my solutions and choose a different one.
Spacecraft Design Challenge
• Soyuz Spacecraft Landing
• Review of the 8 steps in the Engineering Design Process
• Today you will work on steps 1-4 Only
• Design Brief for Unit 2