L og on to the website www.gapminder.org and select <Gapminder world> from the menu bar at the top. The coloured bubbles on the opening chart each represent a country. If you hover your mouse over the bubble the country’s name is displayed. The colour represents its geographic region, as shown on the world map in the upper right of the screen, and the bubble’s size represents its population. Hover your mouse over a region on the map such as ‘East Asia’ and notice how the same colour bubbles are emphasised on the chart. On all the graphs the year is shown on the background in grey. Press the <Play> button at the bottom and see how the bubbles change in size and position over time for the two variables shown on the introductory chart.
Now create your own chart. On the horizontal axis title-bar below the chart, click your left mouse button and select <Life expectancy> from the menu offered. Then go to the vertical title axisbar (on the left), left click and select <Children per woman>. Click <Play> and notice how the fertility rate and life expectancy changes over time.
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