<p>Name: ______Instructor: Henry Chen [email protected]</p><p>Toy Design : Yo-Yo</p><p>Have you ever played with a yo-yo before. Many generations of children have enjoyed this tricky toy. A yo-yo is a simple toy that dates back to the 500 B.C. It consists of a string wound in between two halves and is well known for its up and down motion. </p><p>In the space provided below draw as accurately as you can, a picture of a yo-yo. </p><p>After you have drawn your design take a moment to view some real yo-yo's. Sketch a picture of them and compare them to your first depiction of a yo-yo above. What features are different or similar? Machines and toys are often designed to very specific specifications. Take several minutes to brainstorm about the important features of a yo-yo and their purpose. Feel free to compare your yo- yo drawing to a real yo-yo for ideas. The goal here is to come up with all the important elements that go into constructing a yo-yo.</p><p>Now that you have identified some important features and their purpose you will construct your own yo-yo to specification. There are three challenges. You will be allowed to use any of the materials on the table. When designing your yo-yo for each challenge, keep in mind what feature of the yo-yo you should focus on in order to achieve the prescribed goal. Challenge 1: Construct a yo-yo that will spin as it drops. At the end, the yo-yo will be able to return back to the hand by tugging up.</p><p>What feature is necessary in order for the yo-yo to spin as it drops? What feature is necessary for the yo-yo to return to your hand by tugging up? Draw a sketch of your prototype yo-yo. Construct your design!</p><p>Does your design fulfill the challenge? Does your prototype resemble your sketch. </p><p>How can you improve on your design? Challenge 2: Improve on your prototype by enabling it to spin at the end of the string when you drop it. This is known as a “sleeper”.</p><p>What feature is necessary in order for the yo-yo to spin at the end of the string? Draw a sketch of your prototype yo-yo. Construct your design!</p><p>How did your yo-yo change from Challenge 1 to Challenge 2? Does your design fulfill the challenge? Does your prototype resemble your sketch. </p><p>How can you further improve on your design? Challenge 3: Improve the design of your yo-yo by increasing the spin time of your “sleeper”.</p><p>What feature will improve the spin time of the yo-yo? Draw a sketch of your prototype yo-yo. Construct your design!</p><p>How did you your yo-yo further evolve from Challenge 2 to Challenge 3? Does your design fulfill the challenge? Does your prototype resemble your sketch. </p><p>Are there any ways you can even further increase sleep time? What challenges were your yo-yo successful in?</p><p>What are the limitations of your prototype yo-yo?</p><p>Name three things you have learned about yo-yo design?</p><p>What have you learned today?</p><p>How did you learn it?</p><p>What remained unclear?</p><p>If you were the instructor what would you do differently?</p>