http://www.j-sda.or.jp/about-jsda/sd-statistics/stati02.html
What do you notice about the figures? For example, look at the 2008 graph for sales of carbonated drinks and compare it to the 2008 graph of juice drinks. The graphs seem to show the same amount of sales, because the bar is at the same height for each. But look at the figures to the left of each graph. Carbonated drink sales were 3 million kl in 2008, while juice drink sales were half of that! The bars in the graphs are the same height, but the units are completely different!
Can you find some more differences in the units? Please be careful when using data from graphs, and be sure the units match up when you compare them. Also, always be sure to include your source so I can look at the original data when I read your essays.
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The graph at right illustrates the bonito catch for the Data Essay in the comments below. The comments box doesn't allow images, so I have posted the graph here. This image is a scan from a Word document, so the quality is not so clear.
The following essay is what we called a Data Essay. The point of this was to find an issue of personal interest, research data about the issue that can be presented in a graph using the graph function of Word, and explain the data clearly in an essay. This was one of the most difficult of the essay "genres" we attempted this year. The graph related to this essay is posted above.
ReplyDeleteTraditional Japanese Bonito Fisheries by CCC
There are many traditional fisheries in Japan, but they are disappearing little by little because it is hard to catch fish by traditional fishing methods. People who catch fish in traditional fisheries are decreasing. In particular, people who catch bonitos by hook-and-line fishing, one of the traditional methods, are decreasing.
Please look at the bar graph (above). The vertical axis shows catches of bonito in tons and the horizontal axis shows years from 1960 to 2008. The bar’s contents shows the proportion of ways to catch bonitos. The dark gray bars at the bottom show the proportion of hook-and-line fishing, and the middle bars show the proportion using purse seine. The top bars show other methods. The largest proportion from 1960 to 1980 is hook-and-line fishing. But from 1980, the proportion using purse seine starts to increase rapidly, and most bonitos are caught by using purse seine now. The catches by hook-and-line fishing in 2000 are the same as in the 1960s.
This graph shows that most bonito fisheries between 1980 and the present use purse seine. Using purse seine catches many more bonitos than catching by hook-and-line fishing, so most fishermen now use purse seine. But hook-and-line fishing doesn’t catch too many bonitos and doesn’t put as much stress on the bonito population. People are talking about whales and tunas, but they aren’t talking about bonitos. If people don’t start to talk about bonitos, they may disappear faster than whales and tunes.
Source
http://database.asahi.com/library2/main/start.php
Kikuzo II visual Asahi Shinbun Database