from The Open University
Alternatively you can skip the navigation by pressing 'Enter'.
Canals: The Making of a Nation: HeritageTuesday, 6th October 2015 20:00 - BBC FourEpisode 1 of 6 investigates the heritage of our canal network and how the Birmingham and Fazeley Canal is still... Read more: Canals: The Making of a Nation: Heritage
The world’s busiest railway 2015 – Mumbai Railway: Episode 4Wednesday, 7th October 2015 00:45 - BBC Two
Canals: The Making of a Nation: HeritageWednesday, 7th October 2015 00:55 - BBC Four
The world’s busiest railway 2015 – Mumbai Railway: Episode 4Wednesday, 7th October 2015 01:15 - BBC Two
The Great British Year: WinterAvailable until Friday, 6th November 2015 22:00A frozen nation, but not a wasteland... Read more: The Great British Year: Winter
The Bottom Line: Autumn 2015: Art and the Business of TasteAvailable for over a year
The world’s busiest railway 2015 – Mumbai Railway: Episode 4Available until Friday, 6th November 2015 01:15
BBC Inside Science: Preserving global diversity: Kew specialAvailable for over a year
Strange coloured teeth; strange coloured bonesAre bones and teeth always white? Not always... Read more: Strange coloured teeth; strange coloured bones
OpenLearn Live: 6th October 2015Celebrating a small village with a role in two explosive events in history - then more free... Read more: OpenLearn Live: 6th October 2015
Innovation through representationInnovations are realised through design, and some of the most useful tools in the designers’... Try: Innovation through representation now
English: skills for learningThis course is for anybody who is thinking of studying for a university degree and would like to... Try: English: skills for learning now
Squares, roots and powers
From paving your patio to measuring the ingredients for your latest recipe, squares,...
From paving your patio to measuring the ingredients for your latest recipe, squares, roots and powers really are part of everyday life. This free course, Squares, roots and powers, reviews the basics of all three and also describes scientific notation, which is a convenient way of writing or displaying large numbers.
After studying this course you should be able to:
- evaluate the squares, cubes and other powers of positive and negative numbers with or without your calculator
- estimate square roots and calculate them using your calculator
- describe the power notation for expressing numbers
- use your calculator to find powers of numbers
- multiply and divide powers of the same number
- understand and apply negative powers, the power 0 and the power 1 for any number
- express any given number in scientific notation
- convert a number from scientific notation to conventional decimal form
- use scientific notation and the rules of powers to find estimates for calculations
- read results displayed in scientific notation on your calculator.
- Current section: Introduction
- Learning outcomes
- 1 Squares, cubes and roots
- 2 Powers
- 3 Scientific notation
- 4 Open Mark quiz
Study this free course
Enrol to access the full course, get recognition for the skills you learn and track your progress. Make your learning visible!
Squares, roots and powers
This free course, Squares, roots and powers, reminds you about powers of numbers, such as squares and square roots. In particular, powers of 10 are used to express large and small numbers in a convenient form, known as scientific notation, which is used by scientific calculators.
Enrol to get a record of achievement
By enrolling on this course and setting up a free Open University account you can track your progress in My OpenLearn. When you’ve finished you can print off the free activity record to demonstrate your learning.
This OpenLearn course provides a sample of Level 1 study in.
This is an extract from an Open University course which is no longer available to new students. If you found this interesting you could explore more free Mathematics Education courses or view the range of currently available OU Mathematics Education courses.
Copyright & revisions
Originally published: Friday, 10th June 2011
Last updated on: Wednesday, 29th April 2015
- Creative-Commons: The Open University is proud to release this free course under a Creative Commons licence. However, any third-party materials featured within it are used with permission and are not ours to give away. These materials are not subject to the Creative Commons licence. See terms and conditions. Full details can be found in the Acknowledgements section.
- This site has Copy Reuse Tracking enabled - see our FAQs for more information.
If you enjoyed this, why not follow a feed to find out when we have new things like it? Choose an RSS feed from the list below. (Don't know what to do with RSS feeds?)
Remember, you can also make your own, personal feed by combining tags from around OpenLearn.