Proportion is another way of expressing notions of part and whole. You might say that the proportion of village inhabitants who are children is a quarter, or that the proportion of fruit juice in the punch is two thirds, or that the proportion of sand in the concrete is three quarters.

All these examples involve the fractions Author(s): The Open University

## Activity 1

A friend is painting the inside walls of a garage. So far she has used a 2 litre tin of emulsion paint and covered an area of 9 m2. She needs some more paint. How much more would you advise her to
Author(s): The Open University

You will come to this course with many memories of mathematics, both as a teacher and a learner. It may help if you start by recalling memories of learning mathematics and making a record of them in your notebook.

When you work on a task, get into the habit of having your notebook to hand to record your thinking. Use the notebook in any way that helps you to think about the work you have done. Some people find it helpful to divide a page into two columns using the left-hand side to reco
Author(s): The Open University

Environment: Lake Baikal
Should natural resources be exploited to support economic development? In Siberia, Lake Baikal is the deepest lake in the world and contains one fifth of the worldâ€™s freshwater. It has developed over 25 million years to be a truly unique eco-system - yet this lake is now an environment at serious risk. This album focuses on the growing environmental threats to the region, which was named a World Heritage Site in 1996. Industry and new businesses flocked to the once-isolated region, inducing ma
Author(s): The OpenLearn team

Studying mammals: Life in the trees
David Attenborough looks at life in the trees: examining how species have evolved to cope with arboreal living. In this free course, Studying mammals: Life in the trees, you will learn how lemurs, anteaters, bears and many others have developed different methods to help movement and survival. First published on Wed, 16 Mar 2016 as Author(s): Creator not set

Logframe planning
As a way of thinking about projects, Logical Framework Analysis helps to focus on some key questions during the project design process. This free course, Logframe planning, improves your understanding of and practice with the structure of the logframe matrix using an animated overview with voice-over commentary followed by interactive questions relating to using the matrix. Author(s): Creator not set

iSpot: Sharing nature
This free course, iSpot: Sharing nature, provides a valuable resource for anyone with an interest in nature. It will give you the opportunity to learn more about wildlife, and to share your interest with a wider community. First published on Wed, 21 Jun 2017 as Author(s): Creator not set

Energy in buildings
Themes covered in this free course, Energy in buildings, include reducing heating demand in buildings, heating systems and fuel emissions, and reducing electricity use by appliances. The course looks at the importance of energy in buildings in the UK, investigate heat loss and how to prevent it, ways of increasing building efficiency, decreasing CO2 emissions of different fuels and the use of efficient appliances. Author(s): Creator not set

This unit explores different understandings of nature and environment and the significance these may have for developing responsibility. The problems of connecting human and non-human nature are presented here as being a challenge peculiar to the concerns of environmental responsibility. They provide the impetus for exploring the idea of â€˜conversationâ€™ as a metaphor for what matters in environmental responsibility. Using a reading by Stephen Talbott as a foundation, the conversation me
Author(s): The Open University

Water for life
Atoms, elements and molecules are the building blocks of everything that makes up our world, including ourselves. In this free course, Water for life, you will learn the basic chemistry of how these components work together, starting with a chemical compound we are all very familiar with water. First published on Wed, 17 Jan 2018 as Author(s): Creator not set

Financial methods in environmental decisions
This free course, Financial methods in environmental decisions, begins by introducing some of the tools that can be used to assess the benefits of investment decisions, including ways of assessing the â€˜external costsâ€™ â€“ the wider costs and benefits to society as a whole â€“ of environmental decisions. First published on Mon, 23 Apr 2018 as Author(s): Creator not set

The science of nuclear energy
This free course, The science of nuclear energy, will delve into the science behind nuclear power and explain what happens inside a nuclear reactor and what it means for an element to be radioactive. It will explore some of the risks of producing nuclear power and examine the arguments for and against including it in future energy planning as well as looking at other potential future solutions. Author(s): Creator not set

Eutrophication
Managing eutrophication is a key element in maintaining the earths biodiversity. Eutrophication is a process mostly associated with human activity whereby ecosystems accumulate minerals. This free course, Eutrophication, explains how this process occurs, what its effects on different types of habitat are, and how it might be managed. First published on Mo
Author(s): Creator not set

2.2.2 Temperature changes over the past millennium

One of the most striking images in the IPCC TAR is reproduced (in adapted form) in Figure 24. Together, these two temperature records tell a compelling story, crystallised in our earlier quotes from the SPM. So let's just pause to take a closer look at each of them.

Author(s): The Open University

1.2 A framing paradox: experiencing nature with cognitive tools

Whilst language tools are helpful in conveying meaning in conversation amongst humans, establishing what matters in â€˜conversationâ€™ between human and non-human nature, or amongst non-human living entities, requires different cognitive tools. Cognition refers to the way in which external information from the environment is processed. As sentient beings, humans and some other animals are able to experience wellbeing and suffering. In the next reading, Ronald Moore examines how we engage with
Author(s): The Open University

1.3.1 Introduction

Holding up the East Asian success story as the way forward has, as I indicated above, little appeal for the antisweatshop movement. For its members, a different image comes to mind of thousands of workers eking out a living from the numerous sweatshops which dot that part of the world: one that involves the perpetuation of poverty wage levels, the use and abuse of poor communities, and the constant taking advantage of what is ready to hand, followed by withdrawal and abandonment. What they se
Author(s): The Open University

1.2.4 Offshore fragments of industry: the negative standpoint

Nike Inc., the US sportswear firm, did in fact take the lead in organising its overseas manufacturing business on a subcontracting basis (Donaghu and Barff, 1990). Early on in the 1970s, it established a web of contractual relationships (or partnerships, as it preferred to call them), with factories in Taiwan and South Korea, to produce its branded footwear. Of these factories, the big-volume producers among them were also contracted to other Western firms to produce a range of footwear. Nike
Author(s): The Open University

Introduction

Sweatshops and the exploitation of workers are often linked to the globalised production of â€˜big brandâ€™ labels. This course examines how campaigners have successfully closed the distance between the brands and the sweatshops, while others argue that such production â€˜kick startsâ€™ economies into growth benefiting whole communities.

This OpenLearn course is an adapted extract from the Open University course Author(s): The Open University

References

Attfield, R. (2003) Environmental Ethics: An Overview for the Twenty-First Century, Cambridge, Polity Press.
Beck, U. (1992) Risk Society: Towards a New Modernity, London, Sage.
Beck, U. (1998) â€˜Politics of risk societyâ€™ in Franklin, J. (ed.) The Politics of Risk Society, Cambridge, Polity Press.
Benington, J.
Author(s): The Open University

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There are more thanÂ 800 coursesÂ on OpenLearnÂ for you t
Author(s): The Open University