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Rounding and estimation
Science, Maths & Technology

Rounding and estimation

...think to yourself that the coat shown costs about £300. £290 is considerably closer to £300 than it is to £200, so £300 is a reasonable approximation. In this case, 290 has been rounded up to 300. Similarly, 208 would be rounded down to 200 because it is closer to 200 than it is to 300. Both numbers have been rounded to the nearest hundred pounds. When rounding to...
View course Rounding and estimation
Level 1: Introductory 5 hrs
Data analysis: visualisations in Excel
Science, Maths & Technology

Data analysis: visualisations in Excel

...system separators’, you can enter alternative symbols to use instead. [Screenshot showing how to select the advanced option in Excel] Figure 5 Advanced options in Excel You can adjust the date format by selecting a cell that contains a date, then clicking on Format in the Home ribbon under Cells and Format Cells … or by right-clicking on the cells and selecting Format...
View course Data analysis: visualisations in Excel
Level 1: Introductory 6 hrs
The impact of technology on children's physical activity
Health, Sports & Psychology

The impact of technology on children's physical activity

...think back to when you were a child growing up, and answer the following questions: What technology did you have access to? How did you spend your free time? Discussion Depending on your age you may have had access to very similar technology to that which is around now. However, for some people a TV may have been the sole form of technology you had access to. Free time...
View course The impact of technology on children's physical activity
Level 1: Introductory 6 hrs
What chemical compounds might be present in drinking water?
Science, Maths & Technology

What chemical compounds might be present in drinking water?

...system. Video 2 The dissolution of sodium in ammonia. What is seen upon the dissolution of sodium in ammonia in Video 2? Alkali metals, such as sodium, dissolve reversibly to give blue solutions (in contrast to their more familiar vigorous reactions with water). The blue colour is thought to arise from electrons solvated by ammonia molecules...What chemical compounds...
View course What chemical compounds might be present in drinking water?
Level 2: Intermediate 6 hrs
Surface water
Nature & Environment

Surface water

...system, including all its tributaries, is called a river catchment. The water in a river comes not only from direct precipitation, springs and overland flow (i.e. water flowing across the ground surface, excluding that in streams and rivers; this is rare in temperate vegetated areas) but also from the underground flow of water, directly to the river. Part of this...
View course Surface water
Level 2: Intermediate 8 hrs
Abolitionism must come from below: A critique of British Anti-Slavery Abolition
Society, Politics & Law

Abolitionism must come from below: A critique of British Anti-Slavery Abolition

...System of Moral Philosophy (Volume 2), published in 1755, he argued that ‘‘perpetual labour’ may be ‘justly adjudged’ as an appropriate punishment for law breakers. He goes on: … no law could be more effectual to promote a general industry, and restrain sloth and idleness in the lower conditions, than making perpetual slavery of this sort the ordinary...
View article Abolitionism must come from below: A critique of British Anti-Slavery Abolition
Article 20 mins
Being an Olympic Parent: the family behind the athlete
Health, Sports & Psychology

Being an Olympic Parent: the family behind the athlete

...think of how supportive my family had been through the years, how through all the sports I tried they were there pushing me on, driving me to Eton for track or to Birmingham for football. They always gave me everything I needed.” (Greg Rutherford, 2012 Olympic gold medalist) In most cases, parents are responsible for introducing their children to the sport. For example,...
View article Being an Olympic Parent: the family behind the athlete
Article 5 mins
Impossible Peace 2: On a wing and a prayer
OpenLearn Ireland

Impossible Peace 2: On a wing and a prayer

...thinking back to 2003 and to the last act of decommissioning, when the IRA put arms beyond use as part of a sequence to restore the political institutions at Stormont. But that initiative fell apart when the Ulster Unionist leader David Trimble demanded more detail from de Chastelain on what exactly had been destroyed; detail the Commission could not supply because of the...
View article Impossible Peace 2: On a wing and a prayer
Article 5 mins