Week 6 Monday Agenda 1008 Measurement Stations Lab
Week 6
Monday Agenda 10/08 Measurement Stations Lab Complete Must Rotate Read measurement packet get checked before starting stations through the 9 stations directions and complete worksheet
Essential question What is one way to understand how complicated systems work?
BOWLINE KNOT How to tie a bowline knot video Practice tying the bowline knot
Evaluating the Model Did the video help? Why or why not? Were there any distractions? How could the video be simplified? What else might help you learn to tie the knot?
Evaluating the Model Did the picture help? Why or why not? What else might help you learn to tie the knot?
Evaluating the Model Which of the three models was the most useful The video The first two pictures The last slide with 7 pictures Why? Why is simplifying the steps important when explaining how it works? Can you over simplify?
Essential question What is one way to understand how complicated systems work?
Systems and System Models Do’s Don'ts
Wednesday Mousetrap video If, as a class, you had to make an exact copy of the machine in the video, how would you do it?
What will be more efficient: For everyone to make their own model or everyone works on a small piece and we put them together to form a class model? Why? How should we divide up the device? By Time? By Part? By ‘Job’? Assign each group a part to draw out.
What should be included? What are the different parts of your individual models? What has to happen to get your model to do what it is designed to do, and does this come from within the model or from outside the model? What are ways that the different parts of your model interact? Does anything come out of your model or are there any outputs to your model? What would happen if we took away one piece of your model? Would it still function as it has been designed?
Share Out In groups, draw a model an individual subsystem of the Rube Goldberg machine. Share their system models identify the parts needed in a system model
A Good System Model Has System boundaries Parts: All the parts needed to explain the phenomenon or problem Inputs: The parts that enter the system from outside Outputs: The parts that leave the system Flow of energy and matter Relationships: Shows how the parts work together to convert inputs into outputs. example: As one component or part of the model increases, so does another. Limitations: What is not included in our model that might be important
Evaluating System Models Mousetrap Is video this machine one system, a bunch of systems, or both? It is both. The Rube Goldberg machine as a whole is a system, and some parts of the machine are also systems. These smaller systems are called subsystems “Imagine that your models were 100% correct, and they exactly showed each subsystem within the Rube Goldberg Machine. Then we build the Rube Goldberg machine EXACTLY as the models showed, and now we have a perfectly made machine built from perfect plans. ”
Systems vs System Models What is a system? a group of related parts that make up a whole and can carry out functions its individual parts cannot, as well as can be parts of other systems What a is a system model? representation of systems and their interactions, such as inputs, processes, and outputs, and the flow of energy, matter, and information within systems
Thursday 10/11 Blowing bubbles demonstration. Draw a system model that describes how bubbles in the water form. use the list of characteristics of a good model
Are any there any subsystems in this system? How do you know? No, the parts of this system are not made up of smaller parts, and the outputs of one subsystem are not inputs of the next subsystem.
Is this system a subsystem of a larger system? How do you know? No, the parts of this system are not part of a larger system, and the outputs of this system are not inputs of the next subsystem.
What are some things that might be important to the system that are not part of the system model? Temperature (if the water freezes, this system becomes very different) How the bubbles would change, if things like soap were added to the water.
Essential question What is one way to understand how complicated systems work?
- Slides: 24
