Starter quiz
- How does reducing waste benefit the environment?
- It increases pollution and harms ecosystems.
- It helps conserve natural resources and reduce landfill waste. ✓
- It makes more space for more factories.
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- What does 'sustainability' mean when it comes to using resources?
- Using resources in a way that they can be replaced for future generations. ✓
- Using only the cheapest resources available.
- Using resources without worrying about their long-term availability.
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- What is a key difference between natural and synthetic materials?
- Natural materials are made by humans, synthetic materials are found in nature.
- Natural materials come from the earth, while synthetic materials are man-made. ✓
- Natural materials are less durable than synthetic ones.
- Synthetic materials are always cheaper than natural materials.
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- Which polymer is commonly used in school for vacuum forming?
- 'HIPS' ✓
- Where do most synthetic polymers come from?
- They are made from minerals found in the Earth.
- They are produced from natural materials like plants and animals.
- They are manufactured from fossil fuels, such as petroleum and natural gas. ✓
- They are sourced directly from renewable resources like water and wind.
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- How does material wastage impact production costs?
- It decreases costs because more materials are used.
- It increases costs due to the need for more materials and disposal. ✓
- It lowers costs by reducing the amount of material needed.
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Exit quiz
- What can you do before starting a project to help minimise material waste?
- Measure and plan carefully. ✓
- Buy more materials than you think you'll need.
- Use as many different materials as possible.
- Resize the parts you need.
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- Which statement is a phrase to help measuring and marking out accurately?
- measure and cut
- measure twice and cut once ✓
- measure lots and cut
- cut
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- What are the benefits of using a stencil or template when manufacturing?
- quicker ✓
- can be repeated ✓
- slower
- can't be repeated
- accurately repeated ✓
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- What is the purpose of tessellation in manufacturing?
- To create irregular, overlapping shapes.
- To arrange shapes without gaps or overlaps. ✓
- To add texture to a material.
- To shrink shapes to fit into smaller spaces.
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- ______ is the process of arranging different shapes on a material in a way that minimises waste
- 'nesting' ✓
- Which of the following shapes can tessellate on a flat surface without gaps or overlaps?
- Circle
- Square ✓
- Equilateral triangle ✓
- Regular pentagon
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Worksheet
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Presentation
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Video
Lesson Details
Key learning points
- Minimising waste is important for both economic and environmental reasons.
- Stencils and templates are used to ensure materials are used efficiently.
- Nesting is used to ensure materials are used efficiently.
Common misconception
Minimising waste means reducing the size of a product.
Using materials efficiently can be achieved by reducing size, but also by working accurately. This can be done by using stencils / templates, tesselation and nesting.
Keywords
Accurate - correct and precise, with no mistakes
Efficient - using materials in a way that minimises waste
Tesselation - arranging identical shapes in a repetitive pattern without gaps or overlaps
Nesting - arranging varying shapes onto material to make the best use of space
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