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Significant ideas:
A systems approach can help in the study of complex environmental issues.
The use of systems and models simplifies interactions but may provide a more holistic view without reducing issues to single processes.
A systems approach
A systems approach
A systems approach is a way of visualizing a complex set of interactions which may be ecological or societal.
These interactions produce the emergent properties of the system.
The concept of a system can be applied at a range of scales.
Open the MiroBoard and add a clarification for one or two of the examples to describe why they can be considered as systems.
Add an example of a system that isn't called a system.
Open, closed AND ISOLATED systems
Open, closed AND ISOLATED systems
An open system exchanges both energy and matter across its boundary while a closed system exchanges only energy across its boundary.
An isolated system is a hypothetical concept in which neither energy nor matter is exchanged across the boundary.
Ecosystems are open systems; closed systems only exist experimentally, although the global geochemical cycles approximate to closed systems.
Frayer Model Definitions
Copy and complete the Frayer Model document up as far as these words.
Introduction-to-Systems-Thinking-IMS013Epk.pdf
Flows - Transfers and TRANsformations
Flows - Transfers and TRANsformations
A system is comprised of storages and flows.
The flows provide inputs and outputs of energy and matter.
The flows are processes that may be either transfers (a change in location) or transformations (a change in the chemical nature, a change in state or a change in energy).
In system diagrams, storages are usually represented as rectangular boxes and flows as arrows, with the direction of each arrow indicating the direction of each flow. The size of the boxes and the arrows may be representative of the size/magnitude of the storage or flow.
Drawing an Annotated System
It may help with this to check back to Kognity 1.2.2 (Stores and flows). Then using the software of your choice (Drawings, draw.io, Lucid Chart etc.) , create an annotated carbon system explaining the following terms in the annotations:
Matter
Energy
Stores
Flows
Cycles
Transfers
Transformations
Upload this to your ESS folder (don't forget to share that with me).
Podcast
Podcast
Write a script and then record a 10-minute podcast about the systems approach. Explain what a system is and why thinking in terms of systems is so important to a subject like ESS.
The resources listed on the homepage will help with this task.
Upload your podcast into your ESS folder and, if you haven't already, share me into it.
Models
Models
A model is a simplified version of reality and can be used to understand how a system works and to predict how it will respond to change.
A model inevitably involves some approximation and therefore loss of accuracy.
Gaia Hypothesis Model (The Debate) Activity
In two teams you will debate the following statement:
The Gaia Hypothesis is a good model
The team allocated the house will defend the statement and the debate will follow the debate style of:
Opening speaker
Arguments 1-3
Closing remarks
Each speech will be 2 minutes with up to two points of information.
Create your team research using google slides below.
Summary Resources
Summary Resources
Complete this Quizlet test and then add the set to your account.
WATCH THIS
WATCH THIS
Extension
Extension
Read from start of chapter to "In seeking security, we expose ourselves to catastrophe" and then skip ahead to "How can you detect whether a complex system might be approaching a tipping point?" and read until the next double space.
I highly recommend chapter one in the book linked below:
TEDEd Carbon Cycle Activity (30 minutes)
Click the link to the right and complete the watch, think and discuss sections.
For extension, look into the resources in the Dig Deeper section.
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