Product Design Evolution Intent: Discussion on how/why products evolve Student Exemplar Intent: Discussion on how/why products evolve Introduction to Engineering Design © 2012 Project Lead The Way, Inc.

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

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

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

A Product’s Changing Lifecycle Why do products change? Evolution of Product Design Introduction to Engineering Design TM Unit 1 – Lesson 1.1 – Introduction to Design Process A Product’s Changing Lifecycle Why do products change? 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

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

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

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

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

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

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

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

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

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

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