1. Product Design Evolution
Student Exemplar
Introduction to Engineering Design
© 2012 Project Lead The Way, Inc.

2. Evolution of Product Design
Introduction to Engineering Design TM
Unit 1 – Lesson 1.1 – Introduction to Design Process
Student Exemplar
This presentation is a student exemplar.
© 2012 Project Lead The Way, Inc.
Project Lead The Way, Inc.
Copyright 2007

3. Evolution of Product Design
Introduction to Engineering Design TM
Unit 1 – Lesson 1.1 – Introduction to Design Process
Evolution of Product Design
Pose essential questions to help spark interaction between you and the students:
What comes to mind when you hear the word “evolution”?
Why is it important to research the history of a product?
© 2012 Project Lead The Way, Inc.
Project Lead The Way, Inc.
Copyright 2007

4. Evolution of Product Design
Introduction to Engineering Design TM
Unit 1 – Lesson 1.1 – Introduction to Design Process
History of a Product
Why do we change products?
Who impacts these changes?
Discuss our fast-paced society and the rising cost of shipping.
Discuss the impact of visual appeal.
© 2012 Project Lead The Way, Inc.
Project Lead The Way, Inc.
Copyright 2007

5. Evolution of Product Design
Introduction to Engineering Design TM
Unit 1 – Lesson 1.1 – Introduction to Design Process
History of a Product
When do changes take place?
Where do these changes come from?
What advantages and disadvantages are associated with these changes?
Room Key
Talk about the fast-paced society. Ask students about environmental and human impacts, both positive or negative, when a change takes place. Use the automobile as an example.
© 2012 Project Lead The Way, Inc.
Project Lead The Way, Inc.
Copyright 2007

6. A Product’s Changing Lifecycle
Evolution of Product Design
Introduction to Engineering Design TM
Unit 1 – Lesson 1.1 – Introduction to Design Process
A Product’s Changing Lifecycle
Concept or redesign
Change in “needs”
Research
New materials and/or technology
Sketching and development
Manufacture
Test
Market and distribution
Feedback
Consumer
Designer
Manufacturer
This is an important slide to go over for students to understand the process that a product undergoes during its changes.
© 2012 Project Lead The Way, Inc.
Project Lead The Way, Inc.
Copyright 2007

7. Example Product Evolution
Evolution of Product Design
Introduction to Engineering Design TM
Unit 1 – Lesson 1.1 – Introduction to Design Process
Example Product Evolution
“MIT Invention Index at the Massachusetts Institute of Technology asked which of five inventions Americans could not live without.”
“The toothbrush emerged as the undisputed champ, beating out the car, the personal computer, the cell phone, and the microwave, in that order, as the most prized innovation.”
The following slides are an example PowerPoint for Activity 1.9 Design Innovation. Explain to students that they are allowed to design their own presentation. You want to see their imagination. They need to follow the rubric so that all constraints are followed.
© 2012 Project Lead The Way, Inc.
Project Lead The Way, Inc.
Copyright 2007

8. Evolution of Product Design
Introduction to Engineering Design TM
Unit 1 – Lesson 1.1 – Introduction to Design Process
The First Toothbrush
Some records indicate a version of the toothbrush that dates back as far as 5000 years ago. Babylonians rubbed a “chew stick” on their teeth and mouth to keep them clean
© 2012 Project Lead The Way, Inc.
Project Lead The Way, Inc.
Copyright 2007

9. The Bristle Toothbrush
Evolution of Product Design
Introduction to Engineering Design TM
Unit 1 – Lesson 1.1 – Introduction to Design Process
The Bristle Toothbrush
In 1498 a bristle toothbrush was created in China. The bristles were actually the stiff, coarse hairs taken from the back of a hog's neck and were attached to handles made of bone or bamboo.
© 2012 Project Lead The Way, Inc.
Project Lead The Way, Inc.
Copyright 2007

10. American Contributions
Evolution of Product Design
Introduction to Engineering Design TM
Unit 1 – Lesson 1.1 – Introduction to Design Process
American Contributions
The first American to patent a toothbrush was H.N. Wadsworth in the 1850s. Companies in the U.S. started mass producing the toothbrush around 1885.
Most Americans did not brush their teeth until Army soldiers in World War II were taught the habit of tooth brushing and brought their enforced habit back home after the War.
© 2012 Project Lead The Way, Inc.
Project Lead The Way, Inc.
Copyright 2007

11. Evolution of Product Design
Introduction to Engineering Design TM
Unit 1 – Lesson 1.1 – Introduction to Design Process
Nylon Bristles
Natural bristles were used in toothbrushes until nylon was discovered. In 1938, nylon, invented by Dupont, replaced the natural bristle. One of the first nylon toothbrushes to commercialize the industry was called Doctor West’s Miracle toothbrush.
© 2012 Project Lead The Way, Inc.
Project Lead The Way, Inc.
Copyright 2007

12. Evolution of Product Design
Introduction to Engineering Design TM
Unit 1 – Lesson 1.1 – Introduction to Design Process
Electric Toothbrush
In 1960 the first commercialized electric toothbrush was marketed in the United States. The technology was developed in Switzerland in 1939
The Broxodent was marketed by the Squibb company.
© 2012 Project Lead The Way, Inc.
Project Lead The Way, Inc.
Copyright 2007

13. Evolution of Product Design
Introduction to Engineering Design TM
Unit 1 – Lesson 1.1 – Introduction to Design Process
Electric Toothbrush
The Broxodent shown above was marketed by the Squibb company.
Sonicare™
© 2012 Project Lead The Way, Inc.
Project Lead The Way, Inc.
Copyright 2007

14. Evolution of Product Design
Introduction to Engineering Design TM
Unit 1 – Lesson 1.1 – Introduction to Design Process
Ergonomic Design
The past 100 years have seen many innovations to the toothbrush such as ergonomic handles, spinning heads, and improved bristle configurations
A pioneer in this transformation was Dr. Robert Hutson, a periodontist from San Jose, California. Hutson invented the first toothbrush with soft end-rounded nylon bristles. He named the product Oral-B
© 2012 Project Lead The Way, Inc.
Project Lead The Way, Inc.
Copyright 2007

15. Evolution of Product Design
Introduction to Engineering Design TM
Unit 1 – Lesson 1.1 – Introduction to Design Process
Ergonomic Design
vs.
© 2012 Project Lead The Way, Inc.
Project Lead The Way, Inc.
Copyright 2007

16. Electronic Advancements
Evolution of Product Design
Introduction to Engineering Design TM
Unit 1 – Lesson 1.1 – Introduction to Design Process
Electronic Advancements
Toothbrush designs are now starting to include electronics. The Radius™ toothbrush has a built-in timer that blinks light or plays music to let you know how long to brush
Radius™
© 2012 Project Lead The Way, Inc.
Project Lead The Way, Inc.
Copyright 2007

17. References
Oral B. Oral B history. Retrieved from
© 2012 Project Lead The Way, Inc.