CHDV
137 (3): Cognitive Development
Spring,
2002
Dr.
Weissman
Project
#2 ~ Piagetian Conservation Tasks
Objectives:
1.
To introduce students Piagetian methodology (interview)
2.
To introduce students to the concept of conservation, and the
accompanying theory surrounding concrete operational thought.
3.
To analyze and interpret the data collected.
4.
To write an APA-style paper based on the research
5.
To collaborate with peers throughout the research process.
Task:
For
this project you will work in pairs or small groups (of up to five
students). You will need to interview at least 6 children total (at
least two per student); half of the children interviewed should be aged
4- to 5-years, and half should be aged 7- to 8- years (so, if each
student in the group is interviewing 2 children, one should be from each
of the age ranges). The interviews should take about 20 minutes each.
You should record your questions and each child’s responses verbatim
and attach these to your written report.
Preparation:
Decide
where you will conduct your observation.
Materials
Needed:
Play-doh or modeling clay
10
pennies
2
identical (clear) plastic cups and one that is either tall and thin or
short and fat
Container
with water or other liquid
if
you want to make your own play-doh, the following website has several
good recipes:
http://www.recipesource.com/misc/kids/indexall.html
You
will conduct each of the following 3 tasks with each child. To do these
tasks, you will need to find a desk or table away from other children.
Task
1: Conservation of Number
After
establishing some rapport with the child, bring out the 10 pennies and
line them up into 2 vertical rows of 5 pennies each, in front of the
child. The pennies in the rows should be equally spaced so that each row
is identical. Then begin the interview:
Experimenter:
“See these pennies? I have two rows. Tell me, are there more
pennies in this row [point to one row], more pennies in this row [point
to other row], or are there the same numbers in each row?
[The
child needs to agree that there are the SAME numbers of pennies in each
row. Encourage the child to count each row to make sure]
Experimenter:
“Now watch what I’m going to do.”
[In
one of the rows, move the pennies so they are farther apart so that the
row is longer]
Experimenter:
“Now, are there the same numbers of pennies in each row?”
As
the child responds ask him/her to justify their answer, e.g. “why
does that one have more” or “why are they the same?”
Based on the child’s response, determine (and record) whether the
child is displaying conservation (Yes, No, In transition).
Task
2: Conservation of Number
Put
the pennies away and take out the cups and the container with liquid.
Set the two identical glasses in front of the child. Pour an equal
amount of liquid into each of the glasses. Then begin the interview.
Experimenter:
“See these two glasses? Tell me, is their more water (or whatever
liquid you used) in this glass [point to one glass] more in this
glass [point to the other glass], or is there the same amount of
water in each glass?
[The
child needs to agree that there is the SAME amount in each glass to move
on. If they want, let them pour a little out of one of the glasses
“until they are even.”]
Experimenter:
“Now watch what I’m going to do.”
[Pour
the contents from one of the glasses into the tall thin glass]
Experimenter:
“Now, is there the same amount of water in each glass?”
As
the child responds ask him/her to justify their answer, e.g. “why
does that one have more” or “why are they the same?”
Based on the child’s response, determine (and record) whether the
child is displaying conservation (Yes, No, In transition).
Task
2: Conservation of Mass
Next,
take out the play-doh and shape it into 2 identical round balls. Set
these in front of the child. Then begin the interview.
Experimenter:
“See these two balls? Tell me, does this one have more clay [point
to one ball] does this one have more clay [point to the other
ball], or do they both have the same amount of clay?
[The
child needs to agree that there is the SAME amount in each ball of clay
to move on. If they want, let them take some clay from one of the balls
“until they are even.”]
Experimenter:
“Now watch what I’m going to do.”
[Roll
one of the balls into a sausage/snake shape]
Experimenter:
“Now, does each piece have the same amount?”
As
the child responds ask him/her to justify their answer, e.g. “why
does that one have more” or “why are they the same?”
Based on the child’s response, determine (and record) whether the
child is displaying conservation (Yes, No, In transition).
Written
Report (due Tuesday, April 16th):
Your
paper should be written as a group, and should include the following
sections. Be sure to use APA-style!
Introduction
In
about a page, and using your text as a source, discuss what Piaget says
about the transition from preoperational to concrete operational
thought. Describe the concept of conservation and the tasks. Given
Piaget’s theory, what differences would you expect to find between
preschoolers and school-aged children. Be sure to use your own words or
to paraphrase rather than quote directly. When you paraphrase or quote,
you must cite the source, in this case your text (Siegler, 1998).
Method
In
a couple of paragraphs describe what you did to collect your data. Where
were you? Describe the characteristics of the children you interviewed
(age, sex), and the materials and procedures you used. Be sure to
include a transcript of the interview as an appendix to your paper.
Results
Your
analysis should involve a comparison of the responses between the 2
groups of children you interviewed. For each type of conservation task,
report whether the children displayed conservation and use quotes or
examples to support your conclusions. You should present your results in
a table that is easy to read. You should include your actual data as an
appendix to the paper.
Discussion
Interpret
your results. First, discuss whether you observed what you expected to
observe (i.e., age differences in conservation), given Piaget’s ideas.
If you observed age differences, what do they mean (according to
Piaget)? If you did not find age differences, what might explain this?
Second, besides Piaget’s interpretation, what are some other
explanations for what you observed? Finally, discuss whether you think
Piaget’s method accurately captures what preschoolers can or cannot
do. How might you change the procedure to more accurately reflect what
preschoolers know?
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