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Published byQuentin Todd Modified over 9 years ago

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Broken-Line Graphs

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In your math notebook, define the following words: Line graph - a graph whose points are connected by a line or line segments to represent data – usually has one line or line segment Broken-line graph- a graph whose points are connected by a line or line segments to represent data – includes two or more line segments Precipitation - a deposit on the earth of hail, mist, rain, sleet, or snow Graph key - used to identify the number of categories present in a graph

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Turn to page 140 in your student reference book Use the graph in the example to answer the following questions: What do the horizontal and vertical axes show? What can you conclude from the graph?

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Science Link Broken-line graphs are often used to show trends and the results of scientific studies. As a class, we will complete math journal page 18

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The average number of days with a trace of precipitation (at least 0.01 inch) is shown for each month with a dot Line segments are then used to connect consecutive dots

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What month has the greatest number of days with precipitation? How can you tell? Which season has more days with precipitation— winter or summer? Which month has the least number of days with precipitation? How can you tell? Can you tell from the graph which month has the greatest amount of precipitation? Is there a period in which little change occurred? How would you describe the pattern or trend shown by the graph?

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Double-line graphs are often used to show comparative changes over time The graph of page 19 consists of two broken-line graphs on the same set of axes making it a double-line graph Look at the graph key Why is that so important? What data sets could be displayed using double-line graphs?

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Complete journal page 19, problems #2-#4

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Study Link 1.6 Math Boxes 1.6

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Research your favorite sports team Find the number of wins they had in the last ten seasons. Create a broken line graph and a bar graph to represent those wins. Make sure you include: Labels and values on your vertical and horizontal axis Title for each graph

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When you finish, let me know. You will switch your graph with another classmate. With your partner’s graphs, on a separate piece of paper calculate: Mean Median Mode (if there is one) Range

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