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How to Factor a Trinomial with a Greatest Common Factor
Teacher works through an example of factoring a trinomial with a greatest common factor. He standing in front of and using a whiteboard. Sample video lesson-the complete lesson is at yourteacher.com -solves one equation.(2:14)

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1.2 Boundaries between mental health and illness

Activity 1: What is mental ‘health’?

0 hours 20 minutes

What do you think it means if someone is described as ‘mentally healthy’? Think of all the different ways of descri
Author(s): The Open University

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The Nagual Experiment
This paper refers to an experiment about the use of artificial life structures in order to simulate/evocate natural or artificial patterns. These patterns are the effect of the self-organisation of a population of individuals during their process of development and growth. Although the local dynamics and interactions have a chaotic (partially random) behaviour, the global dynamics of the population produces interesting and well structured patterns. The graphic images generated with these procedu
Author(s): Annunziato, M.

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1.2.6 Summary of Section 1.2

  1. Many people wish to limit the number of their offspring, and so resort to contraceptive measures.

  2. Chemical contraceptives interrupt the production of gametes, or prevent implantation.

  3. Mechanical or barrier contraceptives prevent egg and sperm from meeting and, in the case of IUDs, prevent implantation.

  4. Surgical methods of contraception involve physical alteration of the reproductive tract so as to prevent eggs and
    Author(s): The Open University

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6.2.2 Database servers

To be able to search a website like Lakeland's requires not only a web server but a database server. Like a web server, a database server is a computer that responds to requests from other computers. Its task is to find and extract data from a database.

The web and database servers form part of a distributed system. This means that separate computers exchange data and information across a network (in this case the internet) to produce results for a user. For
Author(s): The Open University

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Measuring Angles With a Protractor
This short video demonstrates how to use a protractor to measure the degree of an angle with step-by-step instructions. (1:40)
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1.2.1 To know or to do?

The so-called ‘content/process’ debate in mathematics involves discussion of the relative importance of content and process in mathematics. It originated as part of a discussion about the nature of mathematics, particularly of school mathematics, and of the purposes for which mathematics is learned. Identifying content and process in mathematics draws attention to the idea that mathematics is a human activity.

As a teacher of mathematics in the UK, you are faced with a national curr
Author(s): The Open University

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An optimization method of the facility location by genetic algorithm
In planning of community-facilities, it is important to decide the facility location to provide the effective service for residents. The behavior of residents using the facility and the evaluation methods of the location have been studied. But, finding the optimum location is very hard in actual planning because the volume of calculation depends on the number of feasible locating points of facilities. To conquer the difficulty of searching the optimum location, we propose an optimization method
Author(s): Aoke, Yoshitsugu and Muraoka, Naoto

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1.4.2 P is for Presentation

By presentation, we mean, the way in which the information is communicated. You might want to ask yourself:

  • Is the language clear and easy to understand?

  • Is the information clearly laid out so that it is easy to read?

  • Are the fonts large enough and clear?

  • Are the colours effective? (e.g. white or yellow on black can be difficult to read)

  • If there are graphics or photos, do they help
    Author(s): The Open University

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Discovering and understanding under-served communities
This resource will help you to improve your awareness and understanding of individuals who are under-served and the health challenges they face. It will also help you reflect on how you can tailor your pharmacy's services to help these people.
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http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

2.5 Collecting quantitative data

How can you collect quantitative data that summarise the nature of a habitat when it is three-dimensional? How, in fact, do you collect quantitative data?

Multi-storied habitats where the components have a different scale are usually recorded storey by storey, but using much the same methodology. There are two standard ways of collecting data quantitatively. The first involves recording species present within a standard area such as 10 cm × 10 cm, 0.5 m × 0.5 m, 1 m × 1 m, or 10 m ×
Author(s): The Open University

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4.4 Mechanisms that affect ageing of cells

So what are the causes of cellular ageing? A variety of causal mechanisms has been proposed, as you shall see. Many of these mechanisms o
Author(s): The Open University

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1.2.3 Mechanical methods of contraception

While hormone-containing pills represent a very sophisticated kind of contraceptive, mechanical contraceptives are a straightforward idea: they act by preventing sperm and egg from meeting. Mechanical contraceptives in their simplest form have been around since before Roman times; some are shown in Figure 4. The earliest ‘penis protectors’ were allegedly used less for contraception than as protection against disease, and as a badge of rank.

Author(s): The Open University

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Introduction

This unit takes you on a journey of discovery where you are invited to challenge ideas, both new and old, in relation to mental health. It is made up of a series of three extracts. The first extract, ‘Boundaries of explanation’, sets out the theme of boundaries: boundaries within and between groups; within and between explanatory frameworks; and within and between experiences of mental health and distress. The second extract, ‘Whose risk is it anyway?’, considers a critical account of
Author(s): The Open University

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2 The future of wind energy

A great advantage of using wind energy is that, unlike power generation from combustion of fossil fuels, it produces no gas emissions. Even a small 750 kW wind turbine operating with wind speeds just above that of turbine cut-off would reduce annual emissions to the atmosphere by 1200 t of carbon dioxide, 6.9 t of sulphur dioxide and 4.3 t of nitrogen dioxide, compared with the equivalent power output from coal-fired generators. Nevertheless, wind turbines and their infrastructures are substa
Author(s): The Open University

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3.4 School Improvement Partners

Following the introduction of School Improvement Partners during 2006–7, governing bodies will no longer be required to take external advice on the head teacher's performance management. Instead, each governing body will be advised by its School Improvement Partner on its management of the head's performance and appraisal. This advice (DfES/Ofsted 2005) will cover the areas currently covered by the External Adviser.


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Information Pioneers: Sir Tim Berners-Lee
This six minute video explains how the world wide web came to be and the rules that were used to start it including everything being free to join. The connections are stressed as well as how the developer is still working on creating a more sophisticated web. A good review of why the web was created as well as how it came into being.
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1 Why sustainable energy matters

One of the greatest challenges facing humanity during the twenty-first century must surely be that of giving everyone on the planet access to safe, clean and sustainable energy supplies.

Throughout history, the use of energy has been central to the functioning and development of human societies. But during the nineteenth and twentieth centuries, humanity learned how to harness the highly-concentrated forms of energy contained within fossil fuels. These provided the power that drove the
Author(s): The Open University

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Learning outcomes

  • Objetivos lingüísticos

  • Expresar sus gustos y preferencias en el contexto del arte;

  • Definir términos abstractos, especialmente en el contexto académico;

  • Expresar sentimientos y reacciones hacia acontecimientos específicos;

  • Analizar un cuento.

  • Objetivos culturales

  • Comprender que el significado de las categorías culturales, por ejemplo las de arte y artesanía, pueden variar seg
    Author(s): The Open University

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1.1.1 Operating the Windows calculator

The Windows calculator is supplied with the Windows operating system. This section provides you with basic instructions for its use, and a few practice activities. The Windows calculator also provides a help menu that you can use.


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