10 595857565554535251504948474645444342414039383736353433323130292827262524232221201918171615141312111009080706050403020100 Warm Up Questions 1.What is.

10 595857565554535251504948474645444342414039383736353433323130292827262524232221201918171615141312111009080706050403020100 Warm Up Questions 1.What is an elevator? 2.What simple machine does an elevator use? 3.How are elevators used in today’s society?

Objectives: The student will  Learn about engineering design.  Learn about elevator operations.  Learn about teamwork and working in groups.

Anticipated Learner Outcomes As a result of this activity, students should develop an understanding of: – Mechanical engineering and design – Problem solving – Teamwork

Lesson Activities Students learn how elevators meet human needs, explore how they work, and then work in teams to develop a design for their own 3-level elevator. Teams plan their system, using materials provided, draw their design, build it, troubleshoot as needed, evaluate their own work and that of other students, and then present their observations to the class.

Elevator History An elevator or lift is a transport device used to move goods or people vertically. The first reference about the elevator is located in the works of the Roman architect Vitruvius, probably, in 236 B.C. Sources of later historical period lifts were mentioned as cabs, on the hemp rope and powered by hand or by animal's force. In 1853, Elisha Otis introduced the safety elevator, which prevented the fall of the cab if the cable broke. The design of the OTIS safety is somewhat similar to one type still used today.

Types of Elevators In general, there are three means of moving an elevator: Traction elevators: Geared Traction machines are driven by AC or DC electric motors. Geared machines use worm gears to control mechanically movement of elevator cars by "rolling" steel hoist ropes over a drive sheave which is attached to a gearbox driven by a high speed motor. Hydraulic elevators: Conventional Hydraulic elevators were first developed by Dover Elevator (now ThyssenKrupp Elevator). They are quite common for low and medium rise buildings (2-10 floors) and use a hydraulically powered plunger to push the elevator upwards. Climbing elevator: A climbing elevator is a self-ascending elevator with its own propulsion. The propulsion can be done by an electric or a combustion engine. Climbing elevators are used in guyed masts or towers, in order to make easy access to parts of these constructions, such as flight safety lamps for maintenance.

Activity #1 - Vocabulary Terms Using internet sources, define the following terms AND use them in a sentence that relates to elevators: Fixed pulley Force Gravity Mechanical advantage Movable pulley Pulley Redirect force Simple machine Work

Activity #2 - Extended Constructed Response The invention of elevators has had a huge impact on civil engineering and urban planning. Write an essay about how you think the invention of the elevator has impacted the skyline of the town or city in which you live.

Activity #3 – Elevator Drawing Students will diagram, draft, or draw their elevator. All elevator and elevator parts must be labeled. All drawings must be 8½ x 11 inches. No small drawings will be accepted.

Activity #4 – Sales Pitch Includes: 1.Your elevator type. 2.How you plan to support loads on your elevator. 3.What makes your elevator team is one of the best. 4.Why your elevator should be selected as dependable, safe, and strong.

Activity #5 - Evaluation Questions 1.Did you succeed in creating an elevator that could deliver a marble to different three stories of the garage? If not, why did it fail? 2.Did you need to request additional or different materials while building your elevator? If so, what happened between the design (drawing) and the actual construction that changed your material needs? 3.Do you think that engineers have to adapt their original plans during the manufacturing process? Why might they? 4.If you had to do it all over again, how would your planned design change? Why? 5.What designs or methods did you see other teams try that you thought worked well?

Activity #5 - Evaluation Questions 6.Did you find that there were many designs in your classroom that met the project goal? What does this tell you about engineering plans? 7.Did you find there was an advantage to working in a team for this project? Explain… 8.Did you need more time to complete the design or construction? Explain why. 9.Do you think that the expectations of riders have impacted the designs of elevators? For example, how has the design been adjusted to accommodate riders with disabilities? 10.What safety considerations do you think engineers must integrate into new elevator designs? For example, many elevators have telephones on board in case of emergencies. What else can you identify?

Resources Class Website (http://technologysystems.yolasite.com/assignm ent-page.php)http://technologysystems.yolasite.com/assignm ent-page.php) TryEngineering (www.tryengineering.org)www.tryengineering.org Otis Worldwide (www.otisworldwide.com)www.otisworldwide.com Online History of Otis Elevators (www.otisworldwide.com/d31-timeline.html)www.otisworldwide.com/d31-timeline.html The Elevator Museum (www.theelevatormuseum.org)www.theelevatormuseum.org

Resources Elevator Model ( school project ) https://www.youtube.com/watch?v=3hZk3MZ5- Oo https://www.youtube.com/watch?v=3hZk3MZ5- Oo How to Build a Model Elevator Science Project http://www.ehow.com/how_5488972_build- model-elevator-science-project.html http://www.ehow.com/how_5488972_build- model-elevator-science-project.html Explain That Stuff – Elevators http://www.explainthatstuff.com/how-elevators- work.html http://www.explainthatstuff.com/how-elevators- work.html

Activities and Assignments Students are expected to complete all assignments in their Engineering notebooks. Due dates for each assignment will be announced (and written on the board). Work should be completed together. The builder should help the designer and vice versa.

Teamwork Activity 1.Form teams of two’s or three's. 2.Open your engineering notebook and title the page: Preliminary Challenge #31: 3-Level Elevator 3.Think about how to move an item upwards.

Preliminary Challenge #31 3-Level Elevator

Engineering Design Process (1-7) 1.Define The Problem 2.Brainstorm Possible Solutions 3.Research Ideas/Explore Possibilities 4.Specify Constraints And Identify Criteria 5.Consider Alternative Solutions 6.Select An Approach 7.Develop Written Design Proposal

Building Stage

Engineering Design Process (8-12) 8.Make Model/Prototype 9.Test And Evaluate 10.Refine/Improve 11.Create/Make Product 12.Communicate Results

Preliminary Challenge #31 Using the 12 step engineering design process, design and construct a 3-level elevator, powered by a motor, that raises a marble for at least 2 feet (24 inches). Steps 1 through 7 must be completed in your engineering notebook and checked by teacher. After steps 1 through 7 have been completed, the students will be given materials to complete the project.

In other words:

Preliminary Challenge #31 Using the 12 step engineering design process, design and construct a 3-level elevator, powered by a motor, that raises a marble for at least 2 feet (24 inches). Your choice of materials are: – Cardboard – Stop/Start Switch – Spool – Battery Unit* – Gears – Straws – Paper – Wood Strips – Motor* – Batteries* – Pulley Discs* – String – Hot Glue *Do not alter materials

Preliminary Challenge #31 Using the 12 step engineering design process, design and construct a 3-level elevator, powered by a motor, that raises a marble for at least 2 feet (24 inches). Steps 1 through 7 must be completed in your engineering notebook and checked by teacher. After steps 1 through 7 have been completed, the students will be given materials to complete the project. Your choice of materials are: – Cardboard – Stop/Start Switch – Spool – Battery Unit* – Gears – Straws – Paper – Wood Strips – Motor* – Batteries* – Pulley Discs* – String – Hot Glue

Assignment Grading Rubric ASSIGNMENTS  Activity # 1 - Definitions and Sentences  Activity # 2 – Extended Constructed Response  Activity # 3 – Elevator Drawing  Activity # 4 – Sales Pitch  Activity # 5 – Evaluation Question  Warm Up Assignments (3)  12 Step Engineering Design Process TOTAL POINTS 200 100 200 300 700 1700

Remember…  Select team roles.  Do the work together. Do not copy from one another.  Plan…plan…plan.  Write everything down. Get to work!

Preliminary Challenge #31

10 595857565554535251504948474645444342414039383736353433323130292827262524232221201918171615141312111009080706050403020100 Warm Up Questions 1.What are the parts of an elevator? 2.How can elevators make human lives easier?

10 595857565554535251504948474645444342414039383736353433323130292827262524232221201918171615141312111009080706050403020100 Warm Up Questions 1.What are three types of elevators? 2.How does an elevator use a pulley?

10 595857565554535251504948474645444342414039383736353433323130292827262524232221201918171615141312111009080706050403020100 Warm Up Questions 1.What is.

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10 595857565554535251504948474645444342414039383736353433323130292827262524232221201918171615141312111009080706050403020100 Warm Up Questions 1.What is.

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