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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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misleading graphs

MISLEADING GRAPHS

Powerpoint by Leah Montange

Lesson by Leah Montange and Daniel Perry

ealr s and gle s
EALR’s and GLE’s
  • Grade Level:  Grade 4
  • 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
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. 
think about it
Think About It:
  • What is misleading about this graph?
  • 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
The same data:

www.mediamatters.org/items/200503220005

factors that make a graph misleading
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
Think Pair Share
  • What is misleading about this graph?
  • 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
Activity Time
  • Gather class data
  • Make a class data table
  • Individually graph it:
    • Accurate graph
    • Misleading graph
slide12
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
Notes on Pedagogy:

Empowerment of students to be able to read the world.

We made a point of:

  • Using real published graphs from news sources, advertisements, reports, etc.
  • Having the class create misleading graphs using real data that the class generates