

Misleading Graphs
Presentation
•
Mathematics
•
8th Grade
•
Medium
+2
Standards-aligned
Donna Henely
Used 23+ times
FREE Resource
17 Slides • 6 Questions
1
Misleading Graphs

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How are the misleading
Misleading graphs are sometimes deliberately misleading and sometimes it's just a case of people not understanding the data behind the graph they create.
The “classic” types of misleading graphs include cases where: The Vertical scale is too big or too small, or skips numbers, or doesn't start at zero.
3
4
Can you guess who made which graph?
5
Fill in the Blanks
Type answer...
6
If you said Terri made the first one, you are correct.
The scores are not that different. Look at the scale and where it starts on both graphs.
7
What makes this graph misleading?
8
Multiple Choice
What made the graph misleading?
bars are all the same color
scale is not at 0
title is incorrect
9
What would make this graph misleading?
10
Multiple Choice
Why is this graph misleading?
Scale doesn't start at 0
bars are different colors
labels are wrong
there is no scale
11
Did you notice there is no scale?
12
There are some kinds of graphs which must be avoided. Those are – Pie charts, 3D and different tricks, radar graphs, donuts and surface graphs.
The worthy data for the Pie charts is not easily available.
The 3 D graphs are little bit confusing
13
What cupcakes do you think they want to really sale?
14
Multiple Choice
Which cupcakes did they want you to think sold the best?
Vanilla
Chocolate
Red Velvet
Banan
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Why is this circle graph misleading?
16
Look how the pie pieces are distorted. Boys (RED) is bigger almost 50%
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This is a pictograph. Why is it misleading?
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Multiple Choice
Which animal is distorted to mislead you?
cat
horse
dog
other
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Hopefully you notice the horse is HUGE and the same number as other.
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What would mislead you about this graph?
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Multiple Choice
Which sport equipment is distorted to mislead?
Baseball
Basketball
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What is the best way to protect yourself against misleading graphs?
Read the labels, the scale, the numbers and the context-and ask what story the picture is trying to tell you
23
Now watch the Ted Talk on you Google Classroom.
Misleading Graphs

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