What are the 6 Rs of sustainable design, and how do designers reduce the environmental impact of products?
The 6 Rs of sustainable design (rethink, refuse, reduce, reuse, repair, recycle), design for disassembly, the circular economy and cradle to cradle, and how designers apply them to reduce a product's environmental impact.
A focused answer to OCR A-Level Product Design on the 6 Rs of sustainable design (rethink, refuse, reduce, reuse, repair, recycle), design for disassembly, the circular economy and cradle to cradle, and how designers apply them to cut a product's environmental impact.
Reviewed by: AI editorial process; not yet individually human-reviewed
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What this dot point is asking
OCR wants you to know the 6 Rs of sustainable design, design for disassembly, the circular economy and cradle to cradle, and to apply them to reduce a product's environmental impact. These are the practical strategies a designer uses to make a product greener.
The 6 Rs
The exam reward is applying an R to a named product with a concrete change, not just defining it.
Design for disassembly
The circular economy and cradle to cradle
Why the earlier Rs matter most
The 6 Rs form a hierarchy: rethinking or reducing avoids impact before any material is extracted or energy used, whereas recycling, while valuable, still uses energy to collect and reprocess. A strong answer prioritises the higher Rs and treats recycling as a last resort, not the first solution.
Exam-style practice questions
Practice questions written in the style of OCR exam questions on this dot point, with worked answer explainers. The year tag is the paper they imitate, not the source.
OCR 20206 marksExplain three of the 6 Rs of sustainable design, and for each describe one way a designer of a kettle could apply it.Show worked answer →
A Component 01 question marked by points within a levels structure. One developed point per R applied to the kettle.
Award marks for any three, developed: Reduce means using less material and energy, so the kettle could be designed with thinner walls, less material overall and a heating element sized so it only boils the water needed (or a marker for minimum fill), cutting material and energy use. Reuse means designing parts to be used again, so a standard, replaceable filter or a refillable descaler could be designed in. Repair means making the product easy and cheap to fix, so the element, lid and cordless base could be replaceable with standard screws rather than glued, extending life. Recycle means using recyclable materials and labelling them, so the body could be a single, marked, recyclable thermoplastic so it can be recovered at end of life. Rethink (is it needed, can it be done differently) and Refuse (avoid harmful or over-packaging) also score.
A common dropped mark is naming the R without a concrete kettle application; the second mark needs the applied example.
OCR 20218 marksDiscuss how designing for the circular economy, including design for disassembly, can reduce the environmental impact of consumer products. Evaluate the challenges of doing so.Show worked answer →
A Component 02 levels-of-response question (AO3), marked by levels.
A top-level answer explains the approach and weighs the challenges. A circular economy keeps materials in use for as long as possible through reuse, repair, refurbishment, remanufacture and recycling, rather than the linear take, make, dispose model; cradle to cradle aims for materials to flow in closed loops with no waste. Design for disassembly supports this by making products easy to take apart (snap-fits and standard screws rather than glue and welds, fewer materials, clear labelling), so parts can be repaired, reused or recycled. The benefits are less raw-material extraction, less waste to landfill, lower embodied energy and longer product life. The evaluation should weigh the challenges: design for disassembly can add cost and complexity, customers may still replace rather than repair, mixed and bonded materials are hard to separate, and recycling infrastructure and consumer behaviour limit how much is recovered. A justified conclusion is that circular design meaningfully cuts impact, especially for durable and electronic products, but depends on cost, infrastructure and consumer habits to deliver.
Markers reward weighing the benefit against the challenges with a judgement, not listing the 6 Rs.
Related dot points
- Life cycle assessment (LCA): the stages of a product's life (raw material extraction, processing, manufacture, packaging and transport, use, end of life), carbon footprint, embodied energy, and how an LCA guides design decisions to cut impact.
A focused answer to OCR A-Level Product Design on life cycle assessment: the stages from raw material extraction through processing, manufacture, transport, use and end of life, carbon footprint and embodied energy, and how an LCA guides design decisions to reduce environmental impact.
- The sustainability of materials and resources: finite versus renewable resources, sustainable timber (FSC), recycling of polymers and metals, the WEEE directive, and how material choice affects a product's environmental impact.
A focused answer to OCR A-Level Product Design on the sustainability of materials and resources: finite versus renewable resources, sustainable timber and the FSC, the recycling of polymers and metals, the WEEE directive, and how material choice affects environmental impact.
- Social, moral and ethical issues in product design: planned and built-in obsolescence, fair and ethical trade (Fairtrade), worker conditions and globalisation, inclusive design, consumer culture, and the designer's social responsibility.
A focused answer to OCR A-Level Product Design on the social, moral and ethical issues in design: planned and built-in obsolescence, Fairtrade and ethical trade, worker conditions and globalisation, inclusive design, consumer culture, and the designer's social responsibility.
- The selection of materials and standard stock forms (sheet, bar, rod, tube, extrusion, granules, pre-formed sections) for a product, weighing functional, aesthetic, economic, manufacturing, availability and environmental factors.
A focused answer to OCR A-Level Product Design on selecting materials and stock forms: the functional, aesthetic, cost, availability, manufacturing and environmental factors, the standard stock forms (sheet, bar, rod, tube, extrusion, section, granules), and how a designer justifies a material choice for a product.
- Product analysis and product disassembly: evaluating an existing product against function, materials, manufacture, ergonomics, aesthetics, sustainability, cost and market, and taking products apart (reverse engineering) to understand construction and inform new designs.
A focused answer to OCR A-Level Product Design on product analysis and disassembly: evaluating an existing product against function, materials, manufacture, ergonomics, aesthetics, sustainability, cost and market, and taking products apart (reverse engineering) to understand construction and inform new designs.
Sources & how we know this
- OCR A Level Design and Technology (H404-H406) specification — OCR (2017)