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3.2 Congruence

The Division Algorithm tells us that, when we divide any integer by a positive integer n, the set of possible remainders is {0, 1, 2, …, n − 1}. Integers which differ by a multiple of n have the same remainder on division by n and are, in this sense, ‘the same’ as each other. We now
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The Economist asks: Can the liberal west survive?
Anne McElvoy explores the future of western liberal ideals. She is joined by former Economist editor Bill Emmott to debate how liberals must change to meet the challenges of their opponents
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8.6 Line spectra: Activity 8 Quasar redshifts

Activity 8: Quasar redshifts

Passive Voice With Present Perfect Tense
A teacher explains the how the present perfect tense works in the passive voice: S + has or have + been + past participle.  Examples on a whiteboard are given during the lesson.

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Keep on learning

Study another free course

There are more than 800 courses on OpenLearn for you to c
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Viewing Gamma Rays (Interactive)
In this interactive activity adapted from NASA, learn about gamma rays and how astronomers use them to study the universe. Explore the electromagnetic spectrum and investigate how the wavelength, frequency, and energy of a wave are related. Learn how gamma rays interact with matter and how the Fermi telescope works. Look at false-color gamma ray images of supernova remnants, pulsars, Earth, and gamma ray bursts.
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God of Antimatter
Prof. Gerald Gabrielse: Lecture
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Introduction

This free course provides a sample of postgraduate study in Technology http://www.open.ac.uk/ postgraduate/ find/ technology.

This course comprises: the transformation process model of operations; a video
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Conclusion

This free course provided an introduction to studying Mathematics. It took you through a series of exercises designed to develop your approach to study and learning at a distance and helped to improve your confidence as an independent learner.


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1.1.1 Where do we get our energy from?

The world's current energy systems have been built around the many advantages of fossil fuels, and we now depend overwhelmingly upon them. Concerns that supplies will 'run out' in the short-to-medium term have probably been exaggerated, thanks to the continued discovery of new reserves and the application of increasingly advanced exploration technologies. Nevertheless it remains the case that fossil fuel reserves are ultimately finite. In the long term they will eventually become depleted and
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5.2 Other transmission media

Wires are still used to carry electrical signals over short distances. At the time of writing, for example, most connections between telephones in private houses and the local telephone exchange still use wires. The telephone networks within office buildings are mostly connected with wires, and so are many computer networks (local area networks, LANs) within single buildings. However, all longer-distance communication, between towns, cities or countries, uses either optical fibre or microwave
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5.4.4 Monitor and critically reflect on your use of IT skills

As you use IT in your work, refer back to the outcomes you hope to achieve and the goals you have set yourself. Ask yourself questions such as:

  • am I on track to achieve my outcomes?

  • what difficulties in using information technology have I experienced and what have I done about them?

  • how have the choices and decisions I made impacted on the quality of my work?

  • do I need to make any changes in the way I
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System Design: Using UML Use Cases
System Design: Using UML Use Cases - UNSPECIFIED Keywords:modelling , UML , software engineering
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Europe's Response to the Challenge of Migration and Security [Audio]
Speaker(s): Dimitris Avramopoulos | Dimitris Avramopoulos will explore how Europe has reacted to the challenges brought about by migration in a globalised Europe. In 2015, Europe was confronted with an unprecedented migration and refugee crisis as well as rising security threats in the aftermath of several terrorist attacks. How did the European Union respond, politically but also operationally? What has changed since then? And is Europe today better prepared for the future? European Commissione
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Coordinate field staff activity from control room
This competency standard covers the skills and knowledge required to monitor field staff activities and co-ordinate responses to security incidents. It requires the ability to systematically control field staff activity, formulate and implement security responses, and review and report on operational effectiveness. This work would be carried out under limited supervision within organisational guidelines.
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Acknowledgements

The material below is part of an extract (chapter 4 pages pp. 101–142 and pp. 265–268) adapted for OpenLearn and contained in The Arts Good Study Guide, by Ellie Chambers and Andrew Northedge from The Open University. Copyright © The Open University, 2005. The Arts Study Guide forms part of the study material for The Open University course A103 An Introduction to the Humanities and has been designed to be used with other Open University courses.

Except for third party materi
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Absolute Beginner Questions Answered by Hiroko #3 - Why do DESU and MASU sound like DESS and MASS?
Learn Japanese with JapanesePod101.com! Asking questions is a big part of learning Japanese. Every day at JapanesePod101.com, we get so many great questions from you, the listeners. And in this video series, we’ll answer those questions! Join Hiroko and get some answers! In this lesson, you’ll learn Why do DESU and MASU sound like DESS and [...]
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Rights not set

References

Ahmed, K. (1995) ‘Glasgow reputations: powerful case for the prosecution’, Scotland on Sunday, 13 August.
Au, O. (1995) ‘Midsummer madness makes one Mean City’, The Sunday Times Scotland, 13 August.
Allardyce, J. (1995) ‘Smiling through’, The Scotsman, 8 August.
Bolitho, W. (1924) Cancer of Empir
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The California Trail Across Nevada
Jordan Thomas

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Waarom ga je naar de supermarkt? : A-B spreekoefening
okan.png

Dit is een oefening voor OKAN. Tijdens deze A-B oefening stellen de leerlingen vragen aan elkaar, bijvoorbeeld:
Persoon A: vraag: Waarom ga je naar de supermarkt? 
Persoon B: antwoord: Om boodschappen te doen.

Elke leerling krijgt een kaartje met …


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