Statistics Lesson Extension

 Teacher Preparation Teachers will need: Students will need: access to a browser. Objectives Students will learn how statistics can be represented in different types of graphs. Lesson Outline Focus and Review Define the terms bar graph, line graph, and pictograph. Guided Practice Direct students to the Colgate website. Students should study the different types of line graphs on the site. Have students record their interpretations. Teacher Input Record students interpretations on the board. Take a closer look at the two graphs with the class as a whole. What could have made these graphs clearer? How did the marketing department trick you into seeing something that was not there? ** Graph in proportion and zero line included for comparison ** Independent Practice Divide the students up into groups of even numbers. Divide each group in half. Give half of the group one picture from the worksheet. Give the other half the other picture. Do not let each group see the others picture. Give students time to review and interpret their picture. Without showing each other their picture, have each group explain to their other group members what information their picture portrayed. Closure Discuss which graph is accurate and which one is not. Discuss what made the misleading graph misleading and the differences between the two graphs.

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