engineering design process gk12 module 6 th grade science traci abney
TRANSCRIPT
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Engineering Design Process GK12 Module
6th Grade Science
Traci Abney
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Module Overview
• Encourages students to think like engineers by following a design process common throughout engineering
The Design Process1. Define the problem
2. Develop Ideas
3. Make a Sketch
4. Do some Math
5. Build
6. Test
7. Deliver
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Module Overview
• Introduction to engineering
• Beam building activity• Catapults• Engineering drawing• Kanban paper airplane• Uranium transport vehicle
design competition
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Kanban Paper Airplane Activity
• Using engineering to solve manufacturing problems
• Objective: Students find optimal method to produce paper airplanes– Quantity– Cost– Quality
• Kanban(Japanese) means sign or placard, and comes from the cards used on assembly lines to signal that parts are needed.
• “Pull” manufacturing is a visual replenishment of goods, where only is produced what is demanded by the next work center.
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Learning Objectives
Students should be able to:
• Apply engineering methods to manufacturing
• Understand a “pull” manufacturing process
• Use engineering concepts to design an optimal process
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Procedure (Before Activity)
• Have stacks of about 75 pages of scrap paper per group ready• Prepare a correctly completed paper airplane example as shown
below• Split the class into groups of about 8-10 students
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Procedure (With Students)
1. Number off students 1-7 in each group (manufacturing company)
2. Demonstrate how to build the paper airplane3. Ask the students to perform their task as fast
as they can for 5 minutes4. After the 5 minutes, count how many airplanes
each group has completed5. Regroup and promote discussion about what
could be done to make the process more efficient
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Important Discussion Topics• Goal is to create the most airplanes, at the lowest
cost, with good quality • Introduce students to pull manufacturing
– Reduces waste and creates a smoother flowing assembly line
• Teamwork, efficiency, and bottlenecks– An assembly line where students are in order of folds is
quickest– Extra students should be doubled up on the harder
folds because they tend to take longer • Some students were sitting idle while others were backed
up with inventory (bottlenecks)– Entire group works together to create a final product– Waste should be minimized because every time a
material is scrapped it costs the company money– Quality is vital because if the plane cannot fly, the
company will lose both time and money
Scrapped planes
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6. Separate and rerun activity using pull manufacturing7. Students can only perform their task when there are no planes
waiting for the next person in line to fold (absence of a plane can be considered the Kanban signal)
8. Implement any other ways discussed to increase the efficiency of the process and have a quality check upon completion
9. Again give the groups 5 minutes to produce the most airplanes10. After the 5 minutes, count the number of paper airplanes
produced and the number of unfinished airplanes or scrapped airplanes
Procedure (With Students)
Fold 1 Fold 2 Fold 3 Fold 4
Fold 5Fold 6Fold 7Quality
Check
Kanban Signal
Kanban Signal
Kanban Signal
Kanban Signal
Kanban Signal
Kanban Signal
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Procedure (With Students)11. Use a spreadsheet (shown below) to calculate a representative
profit made by each company (group of students)• Each finished airplane is worth 5 million dollars• Wasted material costs the company 3 million dollars
12. Regroup and discuss the differences in the two systems and how the improvements worked
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Questions?
Contributors:
Adam Nathan, Don Knobbe, Lisa Picker