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Module

? Question 4: Which countries or regions show the highest proportion of GDP in trade for 4
1970? Which countries show lower proportions?

Step 6

Now click the “Trend Analysis” tab in the red “Theme” box, and check the “Calculate
difference” option. Choose to look at the difference between 1970 and 1980, and display
the difference “in percent.” Click “update map” to see your results. Abu Dhabi, UAE

? Question 5: Is GDP in trade increasing or decreasing? For which regions or countries?
? Question 6: Redraw the trend analysis map for 1980 to 1999, and compare the results.
Does the visual pattern fit your hypothesis from Question 3? Why or why not?

? Question 7: How does the “No data” category affect the different views of the choropleth
map? (A choropleth map uses shading, colouring or a symbol to show the geographical
distribution of the information.) How does it affect your perception of the global balance
of trade?

? Question 8: Explore and evaluate the generalization, scale and projection, and data
classification of this interactive map. In what ways does each factor limit your interpretation
of globalization trends?

Step 7

Print a copy of the map that you made, and copy and paste it into a Word document.

3. Using the histogram
A histogram shows the distribution of data values for one continuous variable. Rather than
showing each individual variable along a single axis, as you saw with line graphs in Exercise 1,
a histogram divides the data into data classes, and then plots the frequency of occurrences

of those data classes relative to the variable as a whole.

Step 8

Click the “Table” tab above the map. This should take you to a table showing the 1970 GDP
trade values by country.

Step 9
Click “Histogram” to get a pop-up window showing a histogram display of the tabular data.
Print the histogram pop-up using the print options on your computer, then close the pop-up.

IEA Training Manual Workshop for the National Reporting Toolkit (NRT) 45