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# MISLEADING GRAPHS - PowerPoint PPT Presentation

MISLEADING GRAPHS. Powerpoint by Leah Montange Lesson by Leah Montange and Daniel Perry. EALR’s and GLE’s. Grade Level:  Grade 4 EALR:  3. The student uses mathematical reasoning. Component:  3.1 Analyze information.

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Presentation Transcript

Powerpoint by Leah Montange

Lesson by Leah Montange and Daniel Perry

EALR’s and GLE’s
• EALR:  3. The student uses mathematical reasoning.
• Component:  3.1 Analyze information.
• GLE:  3.1.1 Analyze and compare numerical, measurement, geometric, and/or statistical information in familiar situations.
• EX: Differentiate between a valid and invalid comparison of mathematical information or results.
Learning Objectives
• Students will be able to identify whether graphs are misleading.
• Students will be able to identify the factors that can make bar graphs, line graphs, and scatter plots misleading.
• Students will be able to interpret whose interests are favored by misleading graphs.
• How could the graph be changed to reflect the data more accurately?
• Why would someone make a graph that is misleading in this way?
The same data:

www.mediamatters.org/items/200503220005

Factors that make a graph misleading:
• Y-axis scale is too big or too small
• Y-axis skips numbers, or does not start at zero
• X-axis scale is too big or too small
• X-axis skips numbers, or does not start at zero
• Axes are not labeled
• Data is left out
• What else?
Think Pair Share
• How could the graph be changed to reflect the data more accurately?
• Why would someone make a graph that is misleading in this way?
Activity Time
• Gather class data
• Make a class data table
• Individually graph it:
• Accurate graph
Interdisciplinary Connections:

Media Literacy

Accommodation Notes:

Opportunity to express socioeconomic class-related perspectives on the validity of data (See Trentatosta, p. 48)

Notes on Pedagogy:

Empowerment of students to be able to read the world.