## 5.3.1 What is a histogram?

The simplest definition of a histogram is that it is a bar chart with the adjacent bars touching each other. Unlike a bar chart, histograms are usually drawn only with vertical bars. Generally, histograms are used to illustrate continuous data whereas bar charts are used to illustrate discrete data (distinct categories).

Author(s): The Open University

A bar chart is a good method of representation if you want to illustrate a set of data in a way that is as easy to understand as it is simple to read. In general, a bar chart should be used for data that can be counted so, for example, we could use a bar chart to show the number of families with 0, 1, 2 or more children. A bar chart could also be used to show how many people in one area use each of the different modes of transport to get to work.

Bar charts are very useful for comparing
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This section covers line graphs. We define the format, give some ideas about when it should be used, and draw some graphs. You can have a go at drawing a line graph in Activity 6, based on data that we supply.

A line graph, at its simplest, is a diagram that shows a line joining several points, or a line that shows the best possible relationship between the points. Sometimes the line will go through all of the points, and sometimes it will show the best possible fit. The line does not h
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## Activity 3

Imagine that you have been asked to investigate population growth in the EU. You might be considering the details of population growth or you may be thinking about representing the reasons for population gro
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This glossary is intended to provide a basic explanation of how a number of common mathematical terms are used. Definitions can be very slippery and confusing, and at worst can replace one difficult term with a large number of other difficult terms. Therefore, where an easy definition is available it is provided here, where this has not been possible an example is used. If you require more detailed or complete definitions, you should refer to one of the very good mathematical dictionaries tha
Author(s): The Open University

Bar charts show data in the form of bars that illustrate the relationship between the items of information in terms of size: the bars get larger (generally taller) as the amounts being shown increase.

When the bars touch, they show continuous data. In other words, data that changes gradually along some sort of a scale, for example weight, height, temperature, or length (these charts are called histograms, see Author(s): The Open University

The content acknowledged below is Proprietary (see terms and conditions) and is used under licence.

Grateful acknowledgement is made to the following sources for permission to reproduce material in this course:

Course image: Sebastien Wiertz in Flickr made available under Creati
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The task here is very different from our task when faced with numbers, where we need to deal with a high level of abstraction. Writing is often dense and multi-layered, and usually gives us, if anything, too much surface information about our subject. We need to make a mental effort this time in selecting and abstracting information ourselves. In order to do this effectively we need to be aware of the context of the writing. We need to check if we can, for instance, the political and s
Author(s): The Open University

Identity In Question
This album Investigates recent debates in sociology, cultural theory and psychoanalysis, and explores the nature of social identity, ‘socialisation’, subjectivity and personhood. The case studies explore the value and relevance of different theoretical frameworks for understanding identity by applying the main concepts in real situations. The material is taken from The Open University course D853 Identity in question.Author(s): The OpenLearn team

Cognitive Psychology
The consciousness of the human mind has long been a topic of fascination and curiosity amongst writers, artists and psychologists, from Carl Jung and Salvador Dali to Virginia Wolfe and Gertrude Stein. This album explores our understanding of consciousness, and features a discussion on some of psychology's most complex questions: what does it mean to be a conscious human, and what purposes our consciousness serves. This material forms part of The Open University course DD303 Cognitive psychology
Author(s): The OpenLearn team

Physical activity: a family affair
This free course, Physical activity: a family affair, aims to explore the effects that the family has on the amount and nature of physical activity a child participates in. The beliefs and behaviours of the family environment are the key psycho-social factors we investigate here. First published on Wed, 17 Feb 2016 as Author(s): Creator not set

Forensic psychology
In this free course, Forensic psychology, you will discover how psychology can help obtain evidence from eyewitnesses in police investigations and prevent miscarriages of justice. First published on Tue, 24 Apr 2018 as Forensic psychology. To find o
Author(s): Creator not set

The relevance of psychology to everyday concerns, and the ease with which it can be popularised and used, mean that psychological knowledge – some of it dubious, some of it accurate – is continually absorbed into culture and often incorporated into the very language we use. Examples of psychological concepts that have entered popular discourse include the notion that we are predisposed, both through evolution and through the functioning of our brains and nervous systems, to behave in cert
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Later in 2013, OpenLearn free courses will be available to be downloaded or taken away in several formats:

• print format
• course content XML
• OU XML package
• IMS Content Package
• IMS Common Cartridge
• plain zip
• Moodle back-up.

At the asset level, the major formats you will find are:

• text in XML or PDF
• animations in Flash
• i
Author(s): The Open University

Having experimented with some of the search tools available and got some results, the next step for anyone searching for relevant content is to evaluate these results in a systematic way. If you intend to use OERs for direct teaching and learning purposes, or for some repurposing prior to teaching and learning, there are several attributes that need to be considered first. Important attributes of quality OERs include:

• accuracy
• reputation of author
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## Define the acronyms

### Question 1

What do the followi
Author(s): The Open University

Anderson, D (1997) V&A Museum, A Common Wealth: Museums in the Learning Age. A Report to the Department for Culture, Media and Sport.
Osborne, K. (2004) Exeter Museums Service, at the MLA site Inspiring Learning for All, www.inspiringlearningforall.gov.uk [accessed 23 August 2004].
Inspiring Learning for All (2004) Quotation from a teacher from the London Museums Hub Focus Gro
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Asimov, I., ‘In my Own View’ in ed. Beare, H. (2001), The Encyclopedia of Science Fiction, Quoted from ‘Education, Technology and Change’ by Megan Blair (accessed on 22 September, 2005).
http://www.cybertext.net.au/tct2002/disc_papers/organisation/blair.htm
DfES (2002), Extended schools: providing opportunities and services for all, p. 6.
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There is a range of tools available to support you, including:

• The DfES financial management standard [accessed 26 January 2007]. See especially the guidance on the role of bursar [accessed 26 January 2007].

• Teachernet school finances webpage [accessed 26 January 2007].

• Schools Audit Commission [accessed 26 January 2007].

• DfES Value for money [accessed 26 January 2007].

Go to Ac
Author(s): The Open University

In part, the business manager can and should be an ‘educational resource manager’. By having someone who concentrates on areas such as administration, facilities management or human resources, it allows others to focus on teaching.

When I applied for the post of business and community manager, the advertisement specified that the successful candidate would have ‘an empathy and understanding of comprehensive education’.

The head explained after my appointment that he did no
Author(s): The Open University