| Learning Aims: |
- Develop a list with ten properties that can be used to identify a person
- Compare the different properties; decide which properties are the most useful
- Write down for each property how easy it is, as a criminal, to cheat on this property
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| Materials: |
| Pen and paper |
| Suggestions for use: |
- Start this as a classroom discussion.
- The first list with properties might look like this:
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Property
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Easy to cheat on
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Mass
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No, however one can go in disguise to pretend to be a lot fatter than in reality.
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Length
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No, also difficult to pretend to be shorter or taller than in real life.
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Age
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No, however by going in disguise one can seem to be of a different age.
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Gender
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No, however by going in disguise a woman may look like a man and vice versa.
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- The second list, filled in for the students, might look like this.
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Name
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Age (year)
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Gender (M/F)
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Length (m)
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Mass (kg)
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Eye color
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John
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16
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M
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178
|
75
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Brown
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Susan
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17
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F
|
164
|
58
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Blue
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Omar
|
16
|
M
|
168
|
79
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Green
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Britt
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15
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F
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169
|
67
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Green
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Holger
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17
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M
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183
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79
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Blue
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| Possible questions: |
- Which properties are the most distinctive in this class?
- How precise do you need to know certain properties?
For this specific case, all the suspects are part of the class and thus have similar age and background.
- Would the same list be useful for the police in general, when the group of suspects is more divers?
- Which properties (that are not important inside the group of students) might be important for general purposes, when the group of suspects is more divers?
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