A Rich Performance Task modeled on the WebQuest format.

2011-2012 Junior Divisional Task
Science & Technology

Designed by Sharon Gillies (sgillies@office.ldcsb.on.ca)

 

| Introduction | Task | Process | Resources | Evaluation | Conclusion | Credits |

Survey Button

 

 

Introduction:


 

What is the context for this scenario?

 
 

Do you enjoy a friendly or competitive game of golf? If you do, you know how much it helps you to stay fit as well as have fun and enjoy the great outdoors. Golf provides the benefits of all three exercise categories: aerobic, strength-building and flexibility and is a common retirement activity. Bending over to "tee up the ball" is often difficult for those with bad backs or the elderly who still want to enjoy the game. How can we help them so they can enjoy the game without the pain?

 


 

 

Task:


 

What product(s) will I be creating?

 
 

Your goal is to design and build a Rube Goldberg machine to tee up a golf ball without bending over. The machine must have at least four different steps. The last step is the golf ball coming to rest on a golf tee. The steps must involve at least three different types of forces and/or mechanical systems to move the ball. A minimum of one mechanical system must be included. Be creative and have fun!
(please note that a marble, ping pong ball, or golf ball can be used)

Possible Forces - applied force, friction force, gravitational force, magnetic force, tension, torsion, spring force (definitions are given below)

Possible Mechanical Systems - pulley system, a lever, a gear system


If you've never seen a Rube Goldberg Machine, here some links that you can check out at school or at home. Please note that You Tube is blocked at school so you'll have to watch them at home.

http://video.google.com/videoplay?docid=-2367646121273499414
Tea Bag in a Cup

http://video.google.com/videoplay?docid=-3638354327358573516&hl=en
Unbelievable Rube Goldberg

www.youtube.com/watch?v=_qYGYL25t4Y
My Backyard Rube Goldberg Chain Reaction Machine

www.youtube.com/watch?v=vrCb_fNmSTA
Creme That Egg!

www.youtube.com/watch?v=7tTNOX8jfno
Dog Food Dispenser

www.youtube.com/watch?v=-s_n-CJ79xM
Cereal and Milk

www.youtube.com/watch?v=M7CcbfBX07c
Legend of Zelda Rube Goldberg Machine

www.youtube.com/watch?v=tRuH4JFxgQc
Rube Goldberg 2008, Milne Valley MS

Think about what you've learned about forces and structures and the acivitites you've done. Put it all together and have fun with your Rube GOldberg Machine!

Vocabulary for this activity
word definition....
Rube Goldberg Machine a machine that takes a simple act and breaks it into a complicated set of steps, usually very entertaining to watch
force a push, pull, or other factor that can make an object change speed, shape, or direction
applied force a force applied to an object by a person or another object directly pushing or pulling on it
contact force a force that results when two interacting objects are in contact (touching) with each other. examples: applied force and friction
friction force a force that resists movement between two objects in contact, friction usually causes an object to slow down, example: rolling a ball on carpet
gravitational force the natural force of attraction from the earth that causes objects to be pulled down
magnetic force a force produced by magentic materials that attracts (pulls) or repels (pushes away) other magnetic materials
noon-contact force a force acting between two objects that are not touching, example: gravitational and magnetic forces
tension force a force that acts that causes an object to expand, stretch, or lengthen, a force that travels through a string, rope, or wire when it's pulled tight
torsion force a force that causes an object to twist, also called torque
spring force a force exerted by a compressed (squeezed) or stretched string
pulley a wheel that usually has a groove around the outside edge. This groove is for a rope or belt to move around the pulley. Pulling down on the rope can lift an object attached to the rope. Work is made easier because pulling down on the rope is helped by gravity. (examples: flag pole, mini blinds, crane)
gears Two wheels with "teeth" fit together either directly or through a chain or belt so that one wheel will turn the other. It can also be a combination of "toothed wheels" that produce a certain speed such as a bike's top gear which makes the bike go fast, and the low gear for slow speed. (examples: clock, drill, automobile)
lever a straight rod or board that pivots on a point known as the fulcrum. Pushing down on one end of a lever causes the opposite end of the lever to rise. The fulcrum can be moved depending on the weight of the object to be lifted or the force needed to push. (example: seesaw, door on hinges, hammer, bottle opener)

 

 

 

Process:


 

What steps do I take to complete the task?

 
 

  1. Think about how your ball (can be a golf ball, ping pong ball, or marble) will "enter" into step 1.
  2. What kind of force will you use to move the ball in the first step? Will it fall? Will it be carried somehow? Will it travel through something? Will it cause something else to move? There are lots of possibilities...pick one and have fun designing!
  3. Build a prototype of the first step.
  4. How will the first step link to the second? How will the ball get from the first step to the second?
  5. Continue these questions for at least four steps.
  6. You need to include at least one mechanical system in your machine. It can involve a lever, a gear system, or a pulley. Where will it be included?
  7. Try some different ideas and build a prototype fo your entire Rube Goldberg Machine. Make any adjustments or modificaitons as needed.
  8. Remember that the ultimate goal is for golf ball to be "teed up" at the end of your steps.
  9. Have fun!

 


 

 

Resources:


 

What resources will I use to complete the task?

 
 

  1. Your teacher will have some basic materials for you to use in your design but almost anything can be used.
  2. The recycling bin may be a good source of materials like paper towel rolls, plastic bottles, cans, etc.

 


 

 

Evaluation:


 

How will my learning be evaluated?

 
 

Here are some rubrics your teacher may use to assess and evaluate your design and build work:

Thinking and Inquiry:

Planning Your Solution (printable version)

Criteria
Level 1
Level 2
Level 3
Level 4
Use of initiating and planning skills and strategies (e.g. identifying the problem, developing a plan)

uses initiating and planning skills with limited effectiveness

has a vague idea of what the problem is in the task

makes an attempt at devising a plan of action

uses initiating and planning skills with some effectiveness

is able to state the general idea of what the problem is in the task

is able to come up with a some steps, incomplete plan of action

uses initiating and planning skills with considerable effectiveness

is able to identify the problem associated with the task

is able to come up with a possible plan of action

uses initiating and planning skills with a high degree of effectiveness

is able to clearly state in own words what the problem is and the goal of the task

is able to come up with a well thought out plan of action


Carrying Out Your Plan (printable version)

Criteria
Level 1
Level 2
Level 3
Level 4
Use of processing skills and strategies (e.g. performing and recording, observing, manipulating materials and using equipment safely)

uses processing skills and strategies with limited effectiveness

performing, recording, and observing skills are very rudimentary

rarely takes an active role in using materials

pays little attention to the safe use of tools

uses processing skills and strategies with some effectiveness

performing, recording, and observing skills are somewhat developed

sometimes takes an active role in using materials

pays some attention to the safe use of tools

uses processing skills and strategies with considerable effectiveness

performing, recording, and observing skills are at average level for grade

usually takes an active role in using materials

pays attention to the safe use of tools

uses processing skills and strategies with a high degree of effectiveness

performing, recording, and observing skills are well developed

takes a leadership role in using materials

pays very close attention to the safe use of tools, reminds others in group


Critical / Creative Thnking (printable version)

Criteria
Level 1
Level 2
Level 3
Level 4
Use of critical/creative thinking processes, skills, and strategies (e,g, analysing, interpreting, problem solving, justifying)

uses critical/creative thinking processes, skills, and strategies with limited effectiveness

task solution is attempted, very incomplete solution, does not address the main part of the problem

uses critical/creative thinking processes, skills, and strategies with some effectiveness

basic task solution is shown, may not address all aspects

uses critical/creative thinking processes, skills, and strategies with considerable effectiveness

standard approach to the task solution

uses critical/creative thinking processes, skills, and strategies with a high degree of effectiveness

approach to the task solution is very creative

makes revisions to better the design/solution

 

Communication:

Expression and Communication
(printable version)

Criteria
Level 1
Level 2
Level 3
Level 4
Expression and organization of ideas and information (e.g. clear expression, logical organization) in oral, visual, and/or written forms (e.g. diagrams, models) Expresses and organizes ideas and information with limited effectiveness Expresses and organizes ideas and information with some effectiveness Expresses and organizes ideas and information with considerable effectiveness Expresses and organizes ideas and information with a high degree of effectiveness

 

Some checklissts that may be helpful as you work through your task are coming soon.

 

 

 

Conclusion:


 

What have I learned?

 
 

Congratulations!

You've successfully designed and built a prototype for a Robe Goldberg Machine. Now that you've completed this project, take time to consider the following questions:

What have you learned about yourself and your groupmates in completing this task?

Did anything in this task trouble you?

What might you do differently given the opportunity to do a similar task again?

How did this task allow you to build your personal learning skills?

 

 

If you are interested in learning more about this subject matter, you can find related hyperlinks at Student Links 2 on the LDCSB "Intranet" Website.

* Note: This link is not licensed for home use by students

 


 

Credits & References:


 

What was the inspiration for this task?

 

 

 

Thanks to the many scientists out there who share great ideas and activites in the online environment.

 

 

 

Publication & Copyright Details


Last updated on October 25, 2011.

Copyright © 2011 London District Catholic School Board and its licensors.
All rights reserved.

 

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