Think Tank Time How might engineers use technology in their work? How might engineers use technology in their work? Write your answer on an index card. Write your answer on an index card. DAY 1

Can you identify the steps of the engineering design process in this Engineering Design Process

Grabbers/Levers

Assistive Devices As you watch the video, think about the role that technology plays in engineering As you watch the video, think about the role that technology plays in engineering.video

Technology & Communication What types of technology could your team use to communicate with the electrical engineering team? solve practical problems.

Criteria & Constraints Criteria--Device must: Grasp the object Grasp the object Move the object Move the object Lift the object from the floor to the table Lift the object from the floor to the table The ratio of “forearm” length to “hand” length is approximately 1.6:1 The ratio of “forearm” length to “hand” length is approximately 1.6:1 Constraints—Device must: Be built from only the materials provided Be built from only the materials provided Be able to grasp and lift at least one object Be able to grasp and lift at least one object

Grabbers/Levers

Human Levers? A human arm is a lever. The elbow is a hinge for the long bones of the arm How can that motion help when you pick something up?

Muscles Move the Bones What are two arm muscles that play a role in raising and lowering the arm? Think of how might you raise and lower an artificial device.

The Right Ratio Nature has always been admired for its patterns and symmetry. In particular the ratio of 1.6:1 is known as the Golden Ratio and is seen repeatedly throughout the natural world. The ratio of the lengths of the human forearm to the hand is one example of the Golden Ratio. How do you measure up? Work with your team to measure and calculate each team member’s forearm length to hand length ratio. Record the data and use it to help make decisions about your prototype design.

Think Tank Time 1.List the steps of the engineering design process (EDP) your team has completed. 2.Write what your team did for each step. 3.Which step will your team be working on next? Write your answer on an index card. DAY 2

Criteria & Constraints Criteria--Device must: Grasp the object Grasp the object Move the object Move the object Lift the object from the floor to the table Lift the object from the floor to the table The ratio of “forearm” length to “hand” length is approximately 1.6:1 The ratio of “forearm” length to “hand” length is approximately 1.6:1 Constraints—Device must: Be built from only the materials provided Be built from only the materials provided Be able to grasp and lift at least one object Be able to grasp and lift at least one object

Think Tank Time Think about the mechanical device you built on Day 2…… Did your prototype work the way you wanted it to? What improvements could you make? Write your answer on an index card. DAY 3

Criteria & Constraints Criteria--Device must: Grasp the object Grasp the object Move the object Move the object Lift the object from the floor to the table Lift the object from the floor to the table The ratio of “forearm” length to “hand” length is approximately 1.6:1 The ratio of “forearm” length to “hand” length is approximately 1.6:1 Constraints—Device must: Be built from only the materials provided Be built from only the materials provided Be able to grasp and lift at least one object Be able to grasp and lift at least one object