Free courses
Produced by The Open University, a world leader in open and distance learning, all OpenLearn courses are free to study. We offer nearly 1000 free courses across 9 different subject areas. Our courses are available to start right away.
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level 2: intermediate icon
Science, Maths & Technology
Metric spaces and continuity
This free course contains an introduction to metric spaces and continuity. The key idea is to use three particular properties of the Euclidean distance as the basis for defining what is meant by a general distance function, a metric. Section 1 introduces the idea of a metric space and shows how this concept allows us to generalise the notion of ...
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level 3: advanced icon
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Science, Maths & Technology
Scholarship of Teaching and Learning in STEM
This free course, Scholarship of Teaching and Learning in STEM, provides a toolkit for conducting Scholarship of Teaching and Learning (SoTL) within Science, Technology, Engineering and Mathematics (STEM). SoTL involves educators using their disciplinary knowledge to investigate a question about learning and teaching, gather evidence in a ...
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level 1: introductory icon
Science, Maths & Technology
IT in everyday life
We now live in a global village where distance is no longer a barrier to commercial or social contact. This free course, IT in everyday life, will enable you to gain an understanding of the information and communication technologies that drive our networked world and how they now permeate our everyday lives.
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level 2: intermediate icon
Science, Maths & Technology
Pain and Aspirin
What causes pain and how do we stop it? This free course, Pain and Aspirin, looks at how the human body responds to the release of certain chemicals and as a result feels pain. Pain can be reduced by inhibiting the formation of such chemicals and you will learn how the molecular structure of aspirin has been formulated to help in this process.
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level 1: introductory icon
Science, Maths & Technology
Health and safety in the laboratory and field
Health, safety and risk assessment are of paramount importance both in the laboratory and the field. This free course, Health and safety in the laboratory and field, will help make you more aware of the hazards and risks involved wherever you undertake your research, as well as giving you an overview of the legal requirements attached to this ...
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level 1: introductory icon
Science, Maths & Technology
What do genes do?
This free course, What do genes do?, explores how information contained in DNA is used, explaining the flow of information from DNA to RNA to protein. Also introduced are the concepts of transcription (as occurs between DNA and RNA) and translation.
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level 1: introductory icon
Science, Maths & Technology
Scales in space and time
Scale – dealing with the miniscule to the massive, over milliseconds to millennia – is central to all the sciences. In this free course, Scales in space and time, you’ll go to the absolute limits of what can be measured – all through a study of an oak tree! By studying it you will be introduced to concepts in physics, chemistry, biology and ...
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level 1: introductory icon
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Science, Maths & Technology
Discovering chemistry
Chemistry lies at the centre of our modern life, playing a part in areas as diverse as the development of new drugs and materials, analysing our environment through to more mundane activities such as washing your clothes and making your tea. But to truly understand the role chemistry plays you need to have a sound grasp of a number of ...
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level 1: introductory icon
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Science, Maths & Technology
Citizen science and global biodiversity
This free course, Citizen science and global biodiversity, deals with the importance of biodiversity and explores how anyone can contribute to and be involved in identifying and recording wildlife, as a citizen scientist. It looks at what citizen science is, and how citizen science facilitates public involvement in scientific research ...
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level 1: introductory icon
Science, Maths & Technology
What is the genome made of?
Genomes are composed of DNA, and a knowledge of the structure of DNA is essential to understand how it can function as hereditary material. DNA is remarkable, breathtakingly simple in its structure yet capable of directing all the living processes in a cell, the production of new cells and the development of a fertilized egg to an individual ...
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level 1: introductory icon
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Science, Maths & Technology
Can renewable energy sources power the world?
We ask the question ‘Can renewable energy sources power the world?’ as a response to the growing awareness that increased use of renewable energy technologies is making a major contribution to global efforts to limit anthropogenic climate change. The course begins by examining the environmental concerns that have caused a rise in interest in ...
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level 2: intermediate icon
Science, Maths & Technology
Plate tectonics
Plate tectonics is an earth sciences topic that attracts a good deal of interest, given that it a topic very often featured in popular science programmes on TV and radio. It is a subject that has strong visual appeal. In this free course the coverage is self-contained, up to date and is written in a way that will be accessible to those with ...