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 8 different subject areas. Our courses are available to start right away.

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Grid List Results: 297 items
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Potable water treatment free course icon Level

Science, Maths & Technology

Potable water treatment

Without it we are dead! Water is essential, but what processes must it go through to become fit for human consumption? This free course, Potable water treatment, will guide you through the continuous cycling of water between land, open water surfaces and the sea before moving on to an overview of the water treatment and supply process.

Free course
20 hrs
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Understanding antibiotic resistance free course icon Level Badge icon

Science, Maths & Technology

Understanding antibiotic resistance

Antibiotic resistance is a serious threat, compromising our ability to treat infections and increasing the risk of routine surgery. Resistant infections are increasing due to overuse of antibiotics and this has resulted in the emergence of 'superbugs' (bacteria resistant to multiple antibiotics). This free course, Understanding antibiotic ...

Free course
24 hrs
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Test kits for water analysis free course icon Level

Science, Maths & Technology

Test kits for water analysis

This free course, Test kits for water analysis, steps outside the laboratory to look at some examples of analytical procedures being carried out in the field using commercial test kits. These quick tests provide results on-site, extending the options available to analysts. The methods used are chemical or microbiological in nature, made portable...

Free course
12 hrs
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Introducing mammals free course icon Level

Nature & Environment

Introducing mammals

Mammals come in a bewildering variety of shapes and sizes, and yet all species have some characteristics in common. These similarities justify the inclusion of all such diverse types within the single taxonomic group (or class) called the Mammalia. This free course, Introducing mammals, offers a starting point for the study of mammals. It will ...

Free course
5 hrs
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Engineering: The nature of problems free course icon Level

Science, Maths & Technology

Engineering: The nature of problems

Engineering is about extending the horizons of society by solving technical problems, ranging from the meeting of basic human needs for food and shelter to the generation of wealth by trade. In this free course, Engineering: The nature of problems, we learn that engineers see the problems more as challenges and opportunities than as difficulties...

Free course
40 hrs
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Systems modelling free course icon Level

Science, Maths & Technology

Systems modelling

Maps and plans, architects and engineers, drawings, graphs and tables: all are models we use in everyday life. This free course, Systems modelling, will introduce you to the modelling process, enabling you to recognise that systems models may be used in different ways as part of a process for: improving understanding of a situation; identifying ...

Free course
4 hrs
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Systems thinking and practice free course icon Level

Science, Maths & Technology

Systems thinking and practice

What is systems thinking and practice? The essence of systems thinking and practice is in 'seeing' the world in a particular way, because how you 'see' things affects the way you approach situations or undertake specific tasks. This free course will help you to learn about the problems of defining a system and meet some of the key concepts used ...

Free course
8 hrs
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Successful IT systems free course icon Level

Science, Maths & Technology

Successful IT systems

Information technology (IT) systems are a critical part of our world, in business and the public and voluntary sectors. They are often highly complex and interconnected combinations of technology, organisations and people. Success and failure of IT systems can be seen in many different settings. Many are highly successful; others fail, sometimes...

Free course
9 hrs
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Volcanic hazards free course icon Level

Science, Maths & Technology

Volcanic hazards

This free course, Volcanic hazards, discusses the various hazards posed by different types of volcanic eruption, illustrated by examples from recent eruptions. The discussion is focused around reading Chapter 5 of Teach yourself volcanoes, earthquakes and tsunamis by OU volcanologist David Rothery.

Free course
10 hrs
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Diabetes complications free course icon Level

Science, Maths & Technology

Diabetes complications

Diabetes is an increasing problem among both adults and children. This free course, Diabetes complications, looks at the way the condition is managed once it has been diagnosed in order to reduce the risk of further complications. You will look at the role of each member of the team involved in the diabetes annual review and look at the risk ...

Free course
16 hrs
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Rounding and estimation free course icon Level

Science, Maths & Technology

Rounding and estimation

Scientific calculators are a wonderful invention, but they're only as good as the people who use them. If you often get an unexpected or ridiculous result when you press the enter button, this free course, Rounding and estimation, is for you. Learn how to do a calculation correctly and get the right answer every time.

Free course
5 hrs
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Laboratory skills for chemistry free course icon Level

Science, Maths & Technology

Laboratory skills for chemistry

An OpenSTEM laboratory school providing you with 24 hours of ‘hands on’ experience with several widely used techniques in chemistry. Techniques include pipetting, titration, solvent extraction, heating under reflux, crystallisation, filtration, melting point determination, TLC, UV-Vis analysis and IR spectroscopy. The laboratory protocols ...

Free course
18 hrs