Climate Change Adaptation and Mitigation
Students will explore strategies for adapting to the impacts of climate change and mitigating greenhouse gas emissions.
Key Questions
- Differentiate between climate change adaptation and mitigation strategies.
- Design local solutions to adapt to specific climate change impacts.
- Evaluate the effectiveness of international agreements in addressing climate change.
Ontario Curriculum Expectations
About This Topic
Design for Efficiency focuses on the balance between structural integrity, material use, and cost. Students learn that a successful design isn't just one that works, but one that works using the fewest resources possible. This is a key part of the Ontario curriculum's emphasis on sustainability and engineering design.
Students explore how certain shapes, like triangles and arches, are naturally efficient at distributing loads. They also consider the environmental impact of the materials they choose and the importance of 'form following function.' This topic comes alive when students are given a specific challenge to build a structure that meets a goal while staying under a 'budget' of materials.
Active Learning Ideas
Inquiry Circle: The Spaghetti Bridge Challenge
Groups are given a limited amount of spaghetti and tape to build a bridge that can span a 30cm gap and hold a specific weight. They must calculate their 'efficiency score' (mass held divided by the mass of the bridge).
Gallery Walk: Structural Failures
Students research a famous structural failure (e.g., the Tacoma Narrows Bridge or the Quebec Bridge collapse) and present what went wrong. The class rotates to learn about the importance of testing and the consequences of poor design.
Think-Pair-Share: Why Triangles?
Students reflect on why they see triangles in so many structures like cranes and roof trusses. They pair up to discuss how a triangle's shape is more rigid than a square's, then share their findings with the class.
Watch Out for These Misconceptions
Common MisconceptionMore material always makes a structure stronger.
What to Teach Instead
Adding more material can actually make a structure weaker by adding too much 'dead load' (its own weight). Peer-to-peer testing of hollow vs. solid beams can show that shape is often more important than mass.
Common MisconceptionA design is only successful if it's indestructible.
What to Teach Instead
A good design meets its requirements without being over-engineered. Discussing the 'cost' of materials and the environmental impact of waste helps students understand the concept of efficiency.
Suggested Methodologies
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Frequently Asked Questions
Why are triangles used so much in construction?
What is the difference between a dead load and a live load?
How does 'form follow function' in engineering?
How can active learning help students understand design efficiency?
Planning templates for Geography
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