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Results: 301 items
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Science, Maths & Technology

### Scattering and tunnelling

Scattering is fundamental to almost everything we know about the world, such as why the sky is blue. Tunnelling is entirely quantum-mechanical and gives rise to such phenomena as nuclear fusion in stars. Scattering and tunnelling is a free course that investigatyes examples and applications of both these fascinating concepts.

Free course
20 hrs
free course icon Level

Science, Maths & Technology

### Rounding and estimation

Scientific calculators are a wonderful invention, but theyre 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
free course icon Level

Science, Maths & Technology

### Ratio, proportion and percentages

From politics to cookery, ratios, proportions and percentages are part of everyday life. This free course is designed to help you become more familiar with how figures can be manipulated, then you can check whether that discount really is as big as they claim!

Free course
5 hrs
free course icon Level

Science, Maths & Technology

### Practising science: Reading the rocks and ecology

Have you ever wondered how scientists analyse the environment? This free course, Practising science: Reading the rocks and ecology, introduces you to the techniques used by science students at residential schools. You will learn how to determine where rocks have come from and how they were made. You will also examine the processes involved in determining the ecology of a particular area.

Free course
14 hrs
free course icon Level

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, using calculus. You will need to do lots of differentiation in this section. Section 2 introduces a number of important properties of point estimation.

Free course
10 hrs
free course icon Level

Science, Maths & Technology

### Introduction to computational thinking

You will learn about algorithms and abstraction in this free course, Introduction to computational thinking, and encounter some applications of computational thinking in various disciplines, ranging from biology and physics to economics and sport science.

Free course
12 hrs
free course icon Level

Science, Maths & Technology

### Personal development planning for engineering

This free course, Personal development planning for engineering, has been written in keeping with the requirements of UK-SPEC and the professional engineering institutions (e.g. ImechE, IET etc). It will provide you with a range of relevant information and guidance in critically assessing and scrutinising your career development aspirations.

Free course
12 hrs
free course icon Level

Science, Maths & Technology

### Interpreting data: Boxplots and tables

This free course, Interpreting data: Boxplots and tables, is concerned with two main topics. In Section 1, you will learn about another kind of graphical display, the boxplot. A boxplot is a fairly simple graphic, which displays certain summary statistics of a set of data. Boxplots are particularly useful for assessing quickly the location, dispersion, and symmetry or skewness of a set of data, and for making comparisons of these features in two or more data sets. Boxplots can also be useful for drawing attention to possible outliers in a data set. The other topic, which is covered in Sections 2 and 3, is that of dealing with data presented in tabular form. You are, no doubt, familiar with such tables: they are common in the media and in reports and other documents. Yet it is not always straightforward to see at first glance just what information a table of data is providing, and it often helps to carry out certain calculations and/or to draw appropriate graphs to make this clearer. In this free course, some other kinds of data tables and some different approaches are covered.

Free course
16 hrs
free course icon Level

Science, Maths & Technology

### Further Laboratory Skills for Biology and Health

An OpenSTEM laboratory school providing you with 25 hours of ‘hands on’ experience of several widely used molecular techniques for quantifying gene expression. Western blot analysis is performed to examine protein levels with colorimetric and chemiluminescent visualization of HRP-linked secondary or biotin-streptavidin reagents. For RNA quantitation, you use qPCR approaches to quantitate mRNA in human cells: PCR efficiency, absolute quantitation against GAPDH calibration standards, cDNA synthesis by reverse transcription, relative quantitation against other commonly used reference genes using ΔCt analysis and dual label hydrolysis probe quantitation. To gain the badge, you must have successfully participated in all aspects of practical training/techniques at this OpenSTEM ‘Further skills for biology and health’ Laboratory School (SS032), demonstrated awareness of and working to relevant health and safety guidance and actively engaged with data analysis and interpretation. Earn this Open University digital badge if you complete this course! The badge can be displayed, shared and downloaded as a marker of your achievement. The badge is awarded for successfully completing the laboratory school.

Free course
18 hrs
free course icon Level

Science, Maths & Technology

### Further 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 making up standard solutions and serial dilutions, use of automatic pipettes, solvent extraction, use of rotary evaporator, column chromatography, recrystallisation, handling air sensitive reagents and heating under reflux under a nitrogen atmosphere, TLC, and characterisation using IR and NMR spectroscopy. The laboratory protocols are designed to develop good laboratory practice (GLP). To gain this badge, you must have successfully participated in all aspects of practical training/techniques at the OpenSTEM ‘Further laboratory skills for chemistry’ Laboratory School (SS031), and demonstrated awareness of and working to relevant health and safety guidance. Earn this Open University digital badge if you complete this course! The badge can be displayed, shared and downloaded as a marker of your achievement. The badge is awarded for successfully completing the laboratory school.

Free course
18 hrs
free course icon Level

Science, Maths & Technology

### Laboratory Skills for Science

An OpenSTEM laboratory school providing you with 18 hours of ‘hands on’ experience with an introduction to several widely used techniques in chemistry and physics.  Techniques include preparing solutions, pipetting, titration, handling radioactive sources, colorimetry and spectrometry as well as recording data and observations, plotting graphs and interpreting results. The laboratory protocols covered are designed to develop good laboratory practice (GLP). To gain the badge, you must have successfully participated in all aspects of practical training/techniques at the OpenSTEM ‘Laboratory skills in Science’ Laboratory School (SS001/SS011), and demonstrated awareness of, and working to, relevant health and safety guidance. Earn this Open University digital badge if you complete this course! The badge can be displayed, shared and downloaded as a marker of your achievement. The badge is awarded for successfully completing the laboratory school.

Free course
18 hrs