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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Grid List Results: 244 items
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Water and human health free course icon level 1: introductory icon

Science, Maths & Technology

Water and human health

Water is a natural resource that is vital for human survival and health, although only a tiny fraction of the Earth's supply is available to humans and terrestrial animals. In this free course, Water and human health, we look at threats, such as pollution, to water's capacity to support life around the world.

Free course
9 hrs
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Rounding and estimation free course icon level 1: introductory icon

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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People-centred designing free course icon level 1: introductory icon

Science, Maths & Technology

People-centred designing

Designed products surround us all and range from bus tickets to buildings. This free course, People-centred designing, focuses firmly on usability and the increasingly important phenomenon of people-centred design. It aims to inform consumers of design (i.e., all of us) about this crucial characteristic of design. In addition to stimulating ...

Free course
12 hrs
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Surfaces free course icon level 3: advanced icon

Science, Maths & Technology

Surfaces

Surfaces are a special class of topological spaces that crop up in many places in the world of mathematics. In this free course, you will learn to classify surfaces and will be introduced to such concepts as homeomorphism, orientability, the Euler characteristic and the classification theorem of compact surfaces.

Free course
20 hrs
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Point estimation free course icon level 2: intermediate icon

Science, Maths & Technology

Point estimation

This free course looks at point estimation, that is, the estimation of the value of the parameter of a statistical model by a single number, a point estimate for the parameter. Section 1 develops some aspects of maximum likelihood estimation. In particular, you will find out how to obtain the maximum likelihood estimator of an unknown parameter,...

Free course
10 hrs
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Test kits for water analysis free course icon level 2: intermediate icon

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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Neighbourhood nature free course icon level 1: introductory icon

Nature & Environment

Neighbourhood nature

There is a fascinating world of nature all around us which we can see if we know how to look for it. Wherever you live, be it in a city or the countryside, you will find areas that support a range of wildlife. This free course, Neighbourhood nature, will provide you with basic scientific and observational skills so that you can go into your ...

Free course
1 hr
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Volcanic hazards free course icon level 1: introductory icon

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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The molecular world free course icon level 2: intermediate icon

Science, Maths & Technology

The molecular world

From diamonds to dynamite, everything involves a chemical reaction. This free course, The molecular world, introduces you to the concepts and principles that underpin chemistry at the molecular level. Everyday experiences are used to help you to understand the more complex issues.

Free course
20 hrs
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Laboratory Skills for Biology and Health free course icon level 1: introductory icon

Science, Maths & Technology

Laboratory Skills for Biology and Health

An OpenSTEM laboratory school providing you with 18 hours of ‘hands on’ experience with several widely used molecular and microbiological techniques to investigate bacterial antibiotic resistance. Techniques will include PCR, qPCR, agarose gel electrophoresis, bacterial plasmid transformation, micro-pipette handling, sterile working, ...

Free course
18 hrs
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Studying mammals: The insect hunters free course icon level 1: introductory icon

Nature & Environment

Studying mammals: The insect hunters

From pygmy shrews to armadillos, a wide range of mammals survive on a diet made up largely of insects. Many of these have fascinating adaptations suited to catching or rooting out their prey. In this free course, Studying mammals: The insect hunters, you will learn about these adaptations, along with survival strategies for when food is scarce. ...

Free course
10 hrs
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Exploring the relationship between anxiety and depression free course icon level 3: advanced icon

Science, Maths & Technology

Exploring the relationship between anxiety and depression

This free advanced level course, Exploring the relationship between anxiety and depression, serves as an introduction to masters level study in neurosciences and mental health. Focusing on anxiety and depression, you will consider key issues concerning diagnosis, causes and interventions, exploring how these conditions relate to each other. You ...

Free course
3 hrs