5.4.3 How to evaluate accessibility

Accessibility guidelines and checklists can be used to evaluate a design or prototype. Despite the difficulties associated with the use of guidelines, they can be a useful tool for getting general insight into the accessibility of a website or system. As we discussed earlier, the main limitation of the use of guidelines or checklists is the fact that background knowledge of disability and assistive technology is required in order to effectively interpret and apply such guidelines.

Once
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5.5 What is blood?

So, having learned about how blood moves around the body, let's now look at what it's made up of and therefore why we need it at all, and why its health has an effect on sporting performance.

Blood has four main components – three types of cell and the watery liquid that holds these cells. Briefly, these four components are:

  • Red blood cells these cells give blood its characteristic colour. They make up about seven per cent of blood and t
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Elizabeth I - Documentary Part 2
This part of the video narrates Elizabeth's childhood and how she was raised by tutors. It described her knowledge of languages and how she studied hard. In 1544 Henry VII admits Elizabeth and Mary back as his legitimate children. She lives close to Henry vIII's forth wife, Katherine Par. Henry died when she was 13 and Elizabeth's life would become harder. Edward, Henry VIII's only male child, became Edward IV. There is reference to The Seymour family, Edward's mother's family.
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Engaging Students in Active Learning Worshop 6
How do we engage students in active learning? In this session, the
teachers examine the elements of authentic instruction and cooperative learning to identify ways of engaging students in social studies content. They review the importance of questioning in relation to higher-order thinking and explore classroom strategies to stimulate
thinking and bring social studies concepts to life for their students.

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Keep on learning

Study another free course

There are more than 800 courses on OpenLearn for you to choose from on a range of subjects. 

Find out more
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Pirate Volleyball Friday 11.14.14
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{Suresh 927} Nice sentences
{Suresh 927} Nice sentences अच्छे वाक्य ( Acchey vaaky) मैने एक बार भय और विस्मय महसूस किया | (Mainey ek baar bhay aur vismay mahsoos kiya.) I felt fear and […]

Terra Foundation Lectures in American Art 2017: Picturing a Nation: (1) Riding into History, Marchin
Professor David Lubin gives his first Terra Lecture in American Art on the Shaw Memorial in Boston. David M. Lubin is the Terra Foundation for American Art Visiting Professor 2016-17 at Oxford University, as well as the Charlotte C. Weber Professor of Art at Wake Forest University in Winston-Salem, North Carolina. Professor Lubin is the author of Act of Portrayal (Yale, 1985), Picturing a Nation (Yale, 1994), Titanic (BFI, 1999), and Shooting Kennedy (California, 2003), which was awarded the Smi
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3.7 Europe

Two very different European sources of law have had an impact on our legal system since the middle of the twentieth century. In this sense, they are one of our most recent sources of law. These two sources are first, the organisation of member states referred to as the European Union (EU), and second, the European Convention on Human Rights (ECHR). They are distinct sources of law. They each act as a source of law in different ways.

Membership of the EU is by application.
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Aquatic Ape 1 - BBC Documentary
This excellent documentary gives pros and cons of the so-called aquatic ape theory. Executive producer Moira Mann, narrated by Andrew Sachs. This documentary is suitable for high school students. Run time 09:54.
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Introduction

The majority of people who sleep on the streets, and in hostels and night shelters are men. However, the number of women, particularly younger women, in these circumstances has increased (Anderson et al., 1993). They are often people with complex care and support needs, which go way beyond the provision of accommodation. But, as you will learn in this course, complex needs are both a cause and a product of homelessness.

In this audio course, you will hear from four people, who will each
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Introduction: Producing Dubstep/Electro Synth Textures with Professor Loudon Stearns
Download Loudon's Session Files for Free at: http://bit.ly/HPCEBG Introduction: Producing Dubstep/Electro Synth Textures with Professor Loudon Stearns In this seven-part music production clinic, Professor Loudon Stearns goes in-depth into Dubstep and electro synth textures, featuring Native Instrument's Massive and Maschine, iZotope Ozone, and more. Loudon Stearns is the Course Author and Instructor of Berkleemusic's online course Composing and Producing Electronic Music. In this course you c
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Explosion testing
This company site includes detailed descriptions of the types of dust explosion and vapour explosion testing offered by the company as well as information on which standards these tests relate to.

There are slow motion video clips of explosions.
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Bicycle / pedal power : technology and applications
This site includes descriptions of a wide range of types of bicycle and tricycle for people of all ages and abilities.

It also has information on uses such as bicycle powered generators and trailers which can be towed by bikes. There are links to related sites with descriptions of particular aspects of the technologies.
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Rhetorica Scandinavica
Rhetorica Scandinavica is an interdisciplinary journal dedicated to promoting scholarly discussion of rhetoric, and research into role of rhetoric in shaping modern knowledge. It aims to bring together researchers across Scandinavia, and publishes information about relevant conferences, seminars and PhD presentations. Users of the online edition may access details of the contents of each issue and a summary of selected articles. The journal archive is searchable and contains issues of Rhetorica
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Tigers of India
Explore.org filmed this terrific video about the tigers of India and the
threat of extinction that they face today. Conservationists like Fateh
Singh are working hard to help the survival of these incredible big
cats. This video from the explore team showcases the great cause of the
conservationists while highlighting the beauty of the wild cat and the
environment.

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The Forbidden Symmetries
The emergence of quasi-periodic tiling theories in mathematics and material science is revealing a new class of symmetry, which had never been accessible before. Because of their astounding visual and structural properties, quasi-periodic symmetries can be ideally suited for many applications in art and architecture; providing a rich source of ideas for articulating form, pattern, surface and structure. However, since their discovery, the unique long-range order of quasi-periodic symmetries, is
Author(s): Ajlouni, Rima

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Optimising fermentation
Professor David Archer on optimising fermentation.
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11.6 Step 5 – critical revision

Once a solution has been obtained it is then necessary to explore the extent to which it effectively solves the problem and where necessary revise it. Although more attention has been given to the moment of inspiration during the act of insight than to any other stage of invention, it is this process of critical revision that is usually the longest, most difficult and costly stage.

Genius is 1 per cent inspirati
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Special : 1/4 and an announcement
Welcome to this special episode of the Arabic Podclass.

This is the first of a 4 parts series of episodes that reviews everything we talked about since the begining of The Arabic Pdoclass.

This episode is NOT totally free ^_^;;; 

The good news is that it costs only $1. You might consider it as a support for The Arabic Podclass not a greed for money ^_~

But that doesn't mean that The Arabic Podclass will not be free. It will stay free.

You j

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