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Date May 2018 Marks available 4 Reference code 18M.3.HL.TZ0.2
Level HL Paper 3 Time zone no time zone
Command term Explain Question number 2 Adapted from N/A

Question

The Natural Brush, see Figure 2, is a toothbrush based on sustainable design. The handle is made from 100 % biodegradable bamboo and the bristles are made of Nylon 6 which the manufacturers claim is the most biodegradable nylon in the world.

Figure 2: The Natural Brush

[Photo by Sara Groblechner on Unsplash]

List two ways in which the Natural Brush is an example of sustainable design.

[2]
a.

Outline how the Natural Brush can be seen as an example of ethical consumerism.

[2]
b.

Outline one pricing consideration and how it would stimulate sales of the Natural Brush.

[2]
c.

Explain how the Nautral Brush balances material, health and usability considerations.

[4]
d.

Markscheme

use of bamboo reduces the amount of plastic being used and disposed of / limits the build-up of waste (environmental) ✓

made from 100% biodegradable material (bamboo, nylon) / cyclic / circular economy / safe (environmental) ✓

promotes human well-being during production, use and disposal (social) ✓

encourages public health (social) ✓

the Natural Brush provides employment (economic) ✓

sales contribute towards local economy (economic) ✓

 

Award [1] for each way listed of how the Natural Brush is an example of sustainable design.

Note to markers: this is a list question.

a.

the Natural Toothbrush provides an alternative to traditional plastic toothbrushes / the Natural Brush only uses biodegradable materials ✓
this allows consumers to make a conscious decision to buy a product that does not harm the environment / positive buying ✓

an increasing number of consumers are demanding ethical products ✓
this has provided the impetus for designing and developing the Natural Toothbrush ✓

 

Award [1] for identifying how the Natural Brush can be seen as an example of ethical consumerism and [1] for a brief explanation

b.

psychological pricing / by ending the price with .99 ✓
will make the customer believe it is cheaper than it really is ✓

competitor based pricing / pricing the Natural Toothbrush similar (cheaper) than existing competitor plastic toothbrushes ✓
otherwise people won’t buy it, and it would be withdrawn from the market ✓

promotional pricing / the manufacturer may provide a limited period of a discounted price when the product is launched ✓
to encourage early adoption / to encourage consumers to trial the Natural Toothbrush ✓

premium pricing / a higher retail price than other toothbrushes in the market / the sustainable nature of the Natural Brush ✓
may suggest a high quality / niche product / some consumers may be prepared to pay a higher price / premium price for it ✓

 

Award [1] for identifying a pricing consideration and [1] for a brief explanation of how it would stimulate sales of the Natural Brush

c.

Material:
made from biodegradable bamboo and Nylon 6 / made from sustainable materials / material allows for ergonomic shape / material allows for strength of handle / design similar to existing toothbrushes ✓


Health:
non-toxic / hygienic / provides same health benefits as existing toothbrushes / safe during disposal ✓


Usability:
same usability (functionality) as existing toothbrushes / ergonomic design / comfortable / (useful/effective/likeable/learnable) ✓


Overall:
balancing all three aspects results in a functional design and leads to product acceptance / diffusion in the market / evokes emotions (ideo-pleasure) ✓

each of the three considerations are dependent on the other if one usability consideration failed, the Natural Brush would fail as all three need to be at a minimum standard for acceptance ✓
[1 max]

 

Award [1] for each of four distinct points in an explanation of how the Natural Brush balances material, health and usability considerations.

Note to markers – each of the considerations needs to be addressed with an overarching statement required for the fourth mark.

d.

Examiners report

[N/A]
a.
[N/A]
b.
[N/A]
c.
[N/A]
d.

Syllabus sections

Topic 7: User-centered design » 7.2 Usability
Topic 8: Sustainability » 8.3 Sustainable design
Topic 7: User-centered design
Topic 8: Sustainability

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