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: 298 items
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Mathemateg bob dydd 1 free course icon Level

Science, Maths & Technology

Mathemateg bob dydd 1

Bydd y cwrs rhad ac am ddim hwn yn datblygu ac yn gwella eich sgiliau mathemateg hanfodol ar gyfer gwaith, astudio a bywyd bob dydd. Mae gan y cwrs bedair sesiwn, sy'n ymdrin â'r pynciau canlynol: rhifau, mesur, siapiau a gofod, a thrin data. Bydd digonedd o enghreifftiau i’ch helpu i symud ymlaen, ynghyd â chyfleoedd i ymarfer eich dealltwriaeth.

Free course
48 hrs
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The evolving Universe free course icon Level

Science, Maths & Technology

The evolving Universe

The Big Bang is said to be the origin of our Universe. This free course, The evolving Universe, will help you to comprehend what happened in the moments immediately after the Big Bang and during the initial cooling period. You will also gain an understanding of how this event turned in to the Universe we live in today.

Free course
12 hrs
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Geological processes in the British Isles free course icon Level

Science, Maths & Technology

Geological processes in the British Isles

The landscape of the British Isles has undergone dramatic changes during the history of the Earth, from shallow sea to desert to the familiar terrain of the 21st century. In this free course, Geological processes in the British Isles, you will explore the processes that have shaped the British landscape over time, gaining insight into the ...

Free course
9 hrs
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Scales in space and time free course icon Level

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 ...

Free course
12 hrs
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Studying mammals: Plant predators free course icon Level

Nature & Environment

Studying mammals: Plant predators

From the mouse-deer to the elephant, plant eaters come in all shapes and sizes. But how do they manage to flourish on a salad diet? In this free course, Studying mammals: Plant predators, we will examine the special features that allow them to extract their nutrients from leaves, and see how some plants protect themselves from these predators. ...

Free course
10 hrs
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Icy bodies: Europa and elsewhere free course icon Level

Science, Maths & Technology

Icy bodies: Europa and elsewhere

The new discipline of astrobiology that is, the science of searching for extraterrestrial life, is not only rapdly growing, but has also captured the public imagination. This free course, Icy bodies: Europa and elsewhere, examines the emergence of icy satellites of distant planets as potential sites of extraterrestrial life, looks at the ...

Free course
17 hrs
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Theories in technology evaluation free course icon Level

Science, Maths & Technology

Theories in technology evaluation

This free course, Theories in technology evaluation, is devoted to exploring and analysing the theoretical and political nature of evaluation and assessment. It introduces theories and paradigms that play important roles in how we design, conduct and use evaluations and assessments, and deals with the thorny issue of participation in evaluation.

Free course
20 hrs
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Univariate continuous distribution theory free course icon Level

Science, Maths & Technology

Univariate continuous distribution theory

This free course looks at a number of the basic properties of statistical models. Section 1 is concerned with the distributions of continuous random variables which are described by their probability density functions (pdfs) and cumulative distribution functions (cdfs). Section 2 is concerned with moments and covers, the concept of expectation ...

Free course
10 hrs
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Blood and the respiratory system free course icon Level

Science, Maths & Technology

Blood and the respiratory system

‘Don’t hold your breath’ is an expression you’ve probably heard many times, but may not have thought too much about. In this free course, Blood and the respiratory system, you’ll study why respiration is so important for life, including how air enters and leaves the lungs, how oxygen is transported in the blood, the many dynamic factors that ...

Free course
10 hrs
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Comparing stars free course icon Level

Science, Maths & Technology

Comparing stars

Stars can necessarily be observed only at a distance. Comparing stars is a 16-hour free course that introduces the HertzsprungRussell diagram, an essential tool in understanding the nature of stars. You should have some understanding of the basic stellar properties of luminosity and temperature in order to get the most from the course.

Free course
16 hrs
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Obesity: balanced diets and treatment free course icon Level

Science, Maths & Technology

Obesity: balanced diets and treatment

The incidence of obesity is on the increase in affluent societies, and the phenomenon commands increasing attention from health professionals, legislators and the media. This free course, Obesity: balanced diets and treatment, looks at the science behind obesity, examining the dietary, physiological and genetic aspects of the topic.

Free course
15 hrs
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An introduction to exoplanets free course icon Level Badge icon

Science, Maths & Technology

An introduction to exoplanets

This free course, An introduction to exoplanets, introduces our galaxy's population of planets, and some of their many surprises. It explains the methods used by astronomers to study exoplanets, and provides a general introduction to the methods of scientific inquiry. The course culminates in discussion of life elsewhere in our Galaxy.

Free course
24 hrs