DESCRIBING GRAPHS, CHARTS, AND TABLES PART 1 INTRODUCTION Writing a description of data presented in a graphic form (a line graph, a chart, or a table) is a common requirement for candidates undertaking Writing Task 1 of the IELTS test. While many candidates have been successful at this task, many others have had difficulty writing this kind of description. Our experiences as candidates taking the IELTS test and as teachers teaching preparation courses for the IELTS test inform us that, despites the overwhelming number of books offering advice and practice toward the completion of this task that candidates have access to these days, a number of prospective Vietnamese test-takers of the IELTS test need classroom-based instructions on how to recognize the basic types of graphs, charts, and tables, and understand data presented in a graph, a chart, or a table. They also need guidance on how to select important data (not all data) to write a report on, using a logical organization, with a wide range of vocabulary and structures. 1.1 Types of Graphs, Charts, and Tables TASK 1 Match the following types of graphic forms and the ways in which the data in each type are presented. Type 1. Line Graphs 2. Column Graphs/ Bar Charts 3. Pie Charts 4. Tables Data are presented as Segments in a disc-shaped form Numbers in cells Unbroken, broken or dotted lines Columns or bars 1 TASK 2 Examine the following graphs, charts and tables (Visuals, pp. 9-10). Then answer these questions. a. Which graphic form displays trends – patterns in data changing over time? b. Which graphic form shows distribution of variables according to some categories? c. Which graphic form shows proportions – parts of a total number or amount? d. Which graphic form requires more interpretation? e. Which graphic form makes use of a horizontal axis and a vertical axis? Line Graphs Bar Charts 2 Pie Charts Tables 1.2. Purpose of Graphs, Charts, and Tables TASK Which of the following statements do you think best describes the purpose of providing graphs and tables in an academic text? (Visuals, p. 6) a. to explain what is in the text in a different way. b. to provide information which is additional to that provided in the text. c. to make it easier to understand an idea or a principle by using a visual rather than by just using words. d. to give an overview or an impression, or a summary. e. to provide more exact details than is desirable in the text. 3 1.3. Purpose of Writing about Graphs, Charts, and Tables TASK Which of the following do you think best describes the purpose of writing about graphs, charts, and tables (in real academic writing)? (Visuals, p.7) a. to explain what is in the graph, chart, or table in a different way which makes it easier to understand. b. to give exactly the same information in words, in order to emphasize it. c. to expand on what is in the graph, chart, or table by giving additional explanations about the reasons, etc. d. to draw attention to the most important aspects of the information shown in the graph, chart, or table. 4 PART 2 WRITING ABOUT GRAPHS, CHARTS, AND TABLES 2.1. Writing the Introductory Sentence Writing an introductory sentence for a report is not the same as writing an introduction for an essay. This means: a. you do not discuss the information in the graph/chart/table. Your primary concern is to “write a report to describe the information” b. you do not begin the introduction with a broad general statement about the topic. c. you do not give your opinion about the significance of the information. One way to write the introduction for a report on a graphic form is to refer to the visual directly. In this way, an introductory sentence can be composed of a maximum of 6 components. 1. The type of graphs. Give a specific label to the graphic form. Is it a line graph, a bar chart, a pie charts, or a table? 2. A conjugated verb or verb phrase In books on IELTS, you are presented with quite a few verbs and verb phrases to be used in this position. Here are four of them: show, illustrate, give information on, and present data on. Make sure the verb agree with the subject of the introduction when you write. 5 3. What the graphic form is about. In many task questions, this information appears immediately after the verb. An example of what this means is seen in the following task question. (101 Helpful Hints for IELTS, p. 138) The bar chart below shows the number of overseas students enrolled in a second year Graphic Design course at a college in the south of England. Write a report for a university lecturer describing the information shown. Alternatively, read the title of the graph/chart /table. Usually the title appears in bold above or below the graphic representation. For example, in the chart below (Visuals, p.47), Japanese Marriages is the title of the chart. 4. Units of measurement This information may be given in the task question, but more often it may be seen in the vertical axis of a line graph or a bar chart. For example, in the line graph above, percentage is the unit of measurement. 5. Areas/Categories This information may be provided in the task question and/or it may appear in the graph/chart/table. In the line graph in 3 above, love marriages and arranged marriages represent this component. 6 6. Time periods This information (or the absence of this information) is usually seen in both the graphic form and the task question. Here are some common time expressions: Around/about In for during Between – and before after from –to/until by Around/about: Around/about 1980 there was a change in the number of female part-time employees. In: In 1999 … In the 20th century … In the subsequent four decades … In the first ten years … For: For the first six months … for twenty years … During: During the first half of this century … During the remainder of the year … From – to/until: From 2005 to 2007 … From August to December … Between – and: Between 2005 and 2007 … Between August and December … Before/after: Before 1960 the number remained small, but after 1965 there was a sudden increase. By: By the late 19th century the rural workforce had declined significantly. By the end of 2050, the rural workforce will have declined significantly. 7 TASK Look at the graphic forms in task 1, section 1.1. Types of Graphs, Charts, and Tables and the following introductory sentences. Identify the components in each introductory sentence by putting them between slashes (/…/), and write the corresponding number (for example, 1 for type of graphs, and 6 for time period) over each component. a. The line graph shows the consumption of cigarettes in billions in an Asian country in four years. b. The line graph gives information on the quantity of pork, beef/buffalo, poultry, and sheep/goat which was produced worldwide over the period 1950-1990. c. The bar chart shows the percentage of 5-14 year old boys and girls who were employed worldwide and in 4 regions in 1995. d. The bar chart illustrates the amount of water (in thousands of litres for each person) consumed per year in European countries in five decades between 1950 and 2000. e. The pie chart compares the percentage of computers which were connected to the Internet in high-income countries, middle-income countries, and low-income countries for the month of July, 1999. f. The pie chart illustrates the percentage of domestic waste categorised into 6 types of materials for the year of 1999. g. The table presents data on the number of computers with Internet connection all over the world in 13 successive years, from 1987 to 1999. h. The table shows the number of overseas students coming to study in 50 major countries. These students were grouped by the countries they originally came from. 2.1.1. Paraphrasing When writing the introductory sentence for a report on a graph or a table, you must not copy word for word key terms and phrases from the task question. Instead, you are advised to use other words, another appropriate structure or change the word order in a phrase to express the same meaning the key words and phrases have in the task question. 8 TASK Paraphrase the following possible introductory sentences, using the words provided after each sentence a. The line graph shows changes in employment patterns in the workforce of Vietnam in 2009. CHANGED b. The line graph shows changes in employment patterns in the workforce of Vietnam in 2009. TYPES OF JOBS c. The bar chart shows the amount of time three student spend on the assignments of their two core courses over the period of a semester. HOURS d. The bar chart shows the amount of time three student spend on the assignments of their two core courses over the period of a semester. 17 WEEK e. The bar chart shows the amount of time spent on household chores by men and women in three types of families. WHICH/THAT f. The bar chart shows the amount of time spent on household chores by men and women in three types of families. MALES g. The table shows water consumption per person in litres in a country in Africa between 2005 and 2007. THE CONSUMPTION h. The table shows water consumption per person in litres in Congo from 2005 to 2007. AFRICA i. The bar chart shows the projected number of silver goods sold by two companies in 2015. SALES VOLUME j. The bar chart shows the projected number of silver goods sold by two companies in 2015. PREDICTED 9 2.1.2. Tense use Apart from the reporting verb (which is usually conjugated in the simple present tense), other conjugated verbs in the introduction are often used with reference to the time period in which the data in the graph/chart/table are put. TASK Put the verbs in brackets into an appropriate tense. a. The line graph shows the number of various types of publications that a college bookstore (sell) ……………… for February, 2000. b. The line graph shows the number of various types of publications that a college bookstore (sell) ……………… since February, 2000. c. The line graph shows the number of various types of publications that a college bookstore (sell) ……………… between February, 2000 and February, 2009. d. The line graph shows the number of various types of publications that a college bookstore (likely/sell) ……………… for February, 2012. e. The line graph shows the number of various types of publications that a college bookstore (sell) ……………… for one month. 10 PART 3 WRITING THE DESCRIPTION 3.1. Describing trends A trend is a pattern in the data that change over time. The trend may indicate an increase, a decrease, no change, or combinations of these patterns in the data over a period of time. 3.1.1. Introducing the trend These expressions are useful for the introduction of a trend: - On the whole, - Generally, - In general, - The overall trend is that … 3.1.2. Describing an ↑ trend in the data The following structures and words are helpful for this type of description: a. There + be + a/an + adj + N + in b. S + V + Adv Adj sudden rapid dramatic exponential significant sharp steep steady moderate gradual slow slight marginal Verb increase rise grow Noun increase rise growth 11 Adv suddenly rapidly dramatically exponentially significantly sharply steeply steadily moderately gradually slowly slightly marginally 3.1.3. Describing an ↓ trend in the data The following structures and words are helpful for this type of description: a. There + be + a/an + adj + N + in b. S + V + Adv Adj sudden rapid dramatic exponential significant sharp steep steady moderate gradual slow slight marginal Verb decrease fall decline drop Noun decrease fall decline drop Adv suddenly rapidly dramatically exponentially significantly sharply steeply steadily moderately gradually slowly slightly marginally 3.1.4. To describe followed by a horizontal representation, use these expressions: increase and ... reach a plateau plateau level off 3.1.5. To describe followed by a horizontal representation, use level off/out. 3.1.6. To describe little or no change, use these expressions: remain constant/steady/ stable stay the same there was little/ no change there was hardly any change 12 3.1.7. To describe a series of and , use the following language: fluctuate (v) fluctuation (n, c) ups and downs (n) erratic (adj) E.g. Sales fluctuated between January and June. Sales were erratic between January and June TASK 1 Examine the line graph below about world grain harvest area (IELTS Preparation and Practice, Academic Module, p. 102) and read a description of the graph. In the description, words showing changes in the trend are missing. Supply the missing words. From 1950 to 1956, there was (1)…………………… in land area devoted to grain harvest all over the world. Then, in the next 18 years, this land area (2)…………………… before (3)…………………… again over the period 1974-1980. After(4)…………………… in 1980, world grain harvest area (5)……………………till 1996, when it started (6)…………………… 13 TASK 2 Describe the trends in the production of different types of meat in the world between 1950 and 1990, as shown in the following line graph. (Visuals, p.33) 3.2. Describing Striking Features When the data in a graphic form are two many or since you cannot see any trend in the data, you can write a description of the information by focusing on some features that stand out from the graph/chart/table. In such a situation, you are advised to look for and describe: The highest datum The lowest datum The exceptions Useful Language One of the first things that can be seen in this graph is that … The most striking feature of this graph is that … One thing that stands out in this graph is that … Another thing that stands out in this graph is that … One exception to this trend is that … 14 TASK Examine the data in the bar chart below, and read the sentences following the chart. Which sentences express possible striking features that can be seen in the bar chart (101 Helpful Hints for IELTS, p. 138)? a. The majority of male students from France, Germany, Sweden, and Spain choose CAD as their core option enrolment, while the reverse trend is true for their female counterparts. b. All Syrian female students choose CAD as their core option, but the males from the same country see a 50-50 split in the choice of the core option. c. More females than males are enrolled in this second year Graphic course. d. No Vietnamese students (males and females) come to this college to take this course in Graphic Design. 3.2. Incorporating more data Usually, a statement of a trend or a striking feature is followed by an incorporation of more specific data (numbers, percentages, etc) to give the reader a more detailed view of the trend or the striking feature. You can do this in the following ways: 1. using prepositions + specific data: To The rate dropped to 30%. The rate increased to 70%. From …to The rate dropped from 40% to 30%. 15 The rate increased from 40% to 70%. By The rate increased by 30%, rising from 40% to 70%. The rate dropped by 10%, falling from 40% to 30%. At The rate remained constant at 30%. The rate peaked at 75%. Of There was an increase of 30% in the rate. The rate reached a peak of 75%. 2. Putting the specific data in brackets. There was a dramatic increase in the rate (from 30%to 70%). The rate was the highest in September (75%) and the lowest in May (30%). 3. Using a V.ing or V.ed phrase that incorporates the specific data. There was a dramatic increase in the rate, rising from 30%to 70%. The rate saw a dramatic increase of 30% in September, followed by a slight decline of 5% in October. TASK Incorporate detailed data to the description of trends and striking features that you have written for the tasks in sections 3.1.7 and 3.2 above. 3.3. Comparing and contrasting data. Note that the verb to compare means to show both the similarities and the differences between two things, while to contrast means simply to reveal the differences. 16 3.3.1. Showing similarities The words and phrases below are useful when showing similarities: Similarly In the same way Both … and Also As .. as Likewise The same As well as Too Just as x, y … Equally In a similar way/fashion, Not only … but also Like x, y … Just as x, so y … 3.3.2. Showing contrast You can use the following words and phrases to show contrast But However Nevertheless Yet On the other hand Unlike While Whereas Although Even though As opposed to By contrast Instead of Apart from Except for 17 TASK 1 Based on the information in the bar chart below, complete the gapped description following the chart. Use the words provided in the box and make necessary changes to the word form to fit the gaps. Use one word for each gap. follow large range similarity three while With its rice production of 192,971,000 tonnes , China was the (1)………………. producer of rice in the world in 1999. It was (2) ………………. by India, which produced 122, 244,000 tonnes, (3) ………………. the third largest producer, Indonesia, was responsible for about one (4) ………………. of that amount, at just over 46 million tones. Bangladesh, Viet Nam, and Thailand had (5)………………. levels of production, i.e. between 20 and 30 million tones each, while Malaysia, Japan, and the Philippines (6) ………………. between 10 and 16 million tones. The USA, which occupied a modest position on this top ten list, accounted for just over 8 million tones of rice in this year. 18 TASK 2 Write a paragraph to compare/contrast car theft rates between 1990 and 1998 in the four countries in the graph below (Prepare for IELTS, Book Two, p.89) 3.4. Describing projected data Occasionally, you are asked to describe data at some time(s) in the future. If that is the case, it is advisable that you use the following phrases and structures to describe the projected data. 1. The prediction is that… The projection is… The forecast is that… 2. It is anticipated/ predicted/forecast/estimated/projected/ expected that + S + will … 3. S + be + predicted/forecast/estimated/projected/ expected + to V. 19 TASK 1 Examine the following bar chart (IELTS Test Builder, p.121) showing the projected sales of two dealers of silver goods. Use appropriate structures to start the sentences describing changes in these sales. 1. 2. 3. 4. 5. 6. ………………………………………. sales will increase for both companies. The ………………………………………. sales of Mark Jones Ltd will start at 450,000 units in January, decrease by 200,000 units the following month, then recover gradually over the subsequent four months. ………………………………………. the sales of Mark Jones Ltd then will remain stable till the end of August when there is a dramatic increase to 60,000 units in September and October In December, the sales of Mark Jones ………………………………………. to reach its peak at 900,000 units. Despite an initial slight decline in February, Mark Jones Ltd’s sales………………………………………. to enjoy a steady increase over the next 4 months, from about 110,000 in February to roughly 280,000 in June. The subsequent months ……………………………………….a dramatic growth of an extra number of 250,000 units in the company’s sales in August, followed by a period of stability at 500,000 units sold per month between September and November, and a steady increase in December when a peak is set at 600,000 units. 20 TASK 2 Write a description about the presumed profits in thousands of euros for next year for three companies as seen in the bar chart below. 3.5. Expressing approximation. In some graphic forms, precise data are not readily available. In these cases, you should use the following words and phrases to express approximation: - Just/well under - Just/well over - Roughly - Nearly - Approximately - Around - About 21 3.6. Percentages, fractions, and proportions. Being able to convert between simple percentages, fractions and proportions gives you the advantage of being more flexible with word choice and thus offers you the option of not having to use a restricted set of words again and again in your description. TASK Write the following mathematical representations in words as percentages, fractions, and proportions. Math. Rep Percentage Fraction Proportion 1/5 ¼ ½ 2/5 ¾ 3.7. Describing portions in a pie chart. The following verbs are useful when you describe portions of a pie chart: - Make up - Constitute - Account for - Occupy - Represent - Capture - Comprise 22 TASK Examine the pie chart below and read the gapped description of the information illustrated in the chart. Fill in each gap with an appropriate verb or verb phrase from the list in section 3.7. above. Put the verb into the correct tense. In 1996/1997, oil (1) ……………………… the greatest proportion of electricity in Australia, at 59%. It was followed by brown coal, which (2) ……………………… 26% of the total amount of electricity being generated. Black coal and gas together (3) ……………………… 15% of generation, but hydro power (4)……………………… only 0,3%. PART 4 WRITING THE CONCLUSION Writing the Conclusion Writing a conclusion for a report on a graphic form is optional. This means you may not need to write a paragraph to conclude your description of the data contained in a graph/chart/table. However, in situations when a conclusion is needed (when your report does not reach 150 words, for example), the only option you have is to write one good, or at least acceptable conclusion. 23 In a conclusion, you first signal that what you are going to write about is a conclusion. Then you can write a comment on changes in the data, between data, or you can write about a correlation between types of data. You can also draw the reader’s attention to a noticeable feature in the data. It is important that you do not interpret the changes in the data or the correlation, using your opinion. The conclusion is just a comment about the changes that you can see in the data or the correlation as it can be seen from the data. You may have written about the overall pattern of the changes or the correlation in the Body section Trends/Striking Features. In such a case, do not repeat the information in the conclusion. You should try to write another comment on the data or a correlation between the data that you can see. The following phrases are useful for the introduction of a conclusion - In conclusion, - To conclude, - In summary, - To sum up, - It can be seen from the data that … - As can be seen from the data, - It is apparent from the data that … TASK 1 Which of the following serves as a good conclusion for a report on a graph / chart / table? a. your subjective explanation for a significant trend/feature in the data. b. a restatement of the introduction in other words, and/or structures. c. your opinion about the significance of the data. d. your observation of a striking feature seen in the data. This observation has not been written down in earlier parts of the report. e. a correlation that can be seen in the data. This correlation has not been mentioned in earlier parts of the report. f. a summary of the main findings. 24 TASK 2 Below are some possible conclusions for a number of graphs, charts, and tables in this unit. Which of these conclusion is a comment on the data or between data, shows a correlation between data, or draws the reader’s attention to a noticeable feature in the data? a. It is apparent from the bar chart that CAD is absolutely not the preferred choice as core option for Syrian female students enrolled in the second year Graphic Design course. b. In conclusion, Asia was home to the majority of the top ten rice producers in the world in 1999. c. In summary, government policies and market forces had an influence on the expansion or shrinkage of land area for grain harvest in the world between 1950 and 1996. d. In conclusion, there are two patterns in the projection of profits for the three companies for next year, namely, an overall upward trend with periods of stability for Tardy Ltd, and an initial increase from April to September, followed by a decrease in subsequent months for the other two companies. e. As can be seen from the data in the pie chart, virtually 100% of electricity generation in Australia in 196/1997 came from fossil fuels, with only an insignificant amount of 0,3 % coming from a renewable source. 25