He used the results to draw this chart scatter chart

Info icon This preview shows pages 3–5. Sign up to view the full content.

View Full Document Right Arrow Icon
He used the results to draw this chart: Scatter chart: Chemical concentration and number of visitors At the same time the manager asked 18 visitors this question: ‘The odor you can smell originates from the pollution in the river. Is it spoiling your enjoyment of the Center?’ He displayed the results as a pie chart. Pie chart showing the percentage of visitors whose enjoyment was spoiled. ±²² ±²³ ±²´ ±²µ ±²¶ ±²· ±²¸ ±²¹ ±³º º ± ² ³ ´ µ · ¸ ¹ ±º ±± ±² ±³ ±´ ±µ !"#$%#&'(&)"# "+ $,%-)$(. )# ')/%' 0-1 2%' $34)$ -%&%'56 73-4%'"+/)8)&"'8&"9)/%'!%#&%' %($,-"#&,6 The Center Manager writes to the Environmental Officer to try to get something done about the river pollution: Tasks 1. Describe in detail what you think the two charts show. 2. Do you think the Riverside Center Manager’s argument is fair? Explain your reasoning. Dear Environmental Officer, Please find enclosed two charts. The scatter chart clearly shows that the increase in the concentration of the chemical in the river has caused a real drop-off in visitor numbers to the Center over the last year. The pie chart proves that people (not surprisingly) don’t like the acrid smell of pollution wafting up from the river. The river needs to be cleaned up; it’s not good for the environment and it’s certainly not good for my business. Please let me know what action you intend to take. Yours faithfully, Manager, Riverside Center
Image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Teacher guide Interpreting Data: Muddying the Waters T-3 Your goal is to be able to answer questions like these confidently by the end of the next lesson. At this stage, do not help students with the task or comment on their work. Stop them after 15 minutes, whether or not they have finished. Collect in students’ papers for analysis. Preparation for the next lesson (5 minutes) Explain the theme for the next lesson. You need three copies of the role-play script A Case of Muddying the Waters . Next lesson we are going to continue the theme of river pollution with some role-play. The role-play sets the scene for the task. An Assistant DA talks to a local Environmental officer and a Factory owner about the pollution of a river. Who wants to play these three roles? Give each volunteer a copy of the role-play script A Case of Muddying the Waters . Ask the volunteers to read over their parts before the next lesson. If you wish, enrich the role-play by asking the volunteers to bring in a few theatrical props. Assessing students’ responses Collect students’ responses to the task. Make some notes on what their work reveals about their current levels of understanding. The purpose of this is to forewarn you of issues that will arise during the lesson itself, so that you may prepare carefully. We suggest that you do not score students’ work. Research shows that this is counterproductive, as it encourages students to compare scores and distracts their attention from how they may improve their mathematics.
Image of page 4
Image of page 5
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern