Making Observations and Inferences
Robert F. Wagner School of Art and Technology, Queens
Summer Research Program for Science Teachers
August 2011
Subject:
Grade Level: 7th & 8th
Unit: Nature of Science
Duration: 60 minutes
Introduction:
This lesson allows the students to discover that science is
everywhere. It encourages students
to apply their scientific skills and to think creatively in their everyday
lives.
Aim: How do scientists make observations and inferences?
Objectives:
Students will be able to:
Vocabulary: Observation, inferences, hypothesis
Materials:
Do Now:
Turn to the person sitting
next to you. Make three observations about your partner. What do your
observations tell you about that person?
Procedure:
1.
Students are introduced with the terms
observation and inference.
2.
Students are divided into groups of 4.
3.
Each group is given an envelope with sixteen
checks. (Do not open the envelope until instructed).
4.
Students are told that the checks came from a
real family. They are asked to write a storyline about the family by
interpreting the checks.
5.
Pull out ONLY 4 checks, and discuss with the
group what situation the checks imply.
6.
Record the implied scenario in the lab notebook
as Original hypothesis.
7.
Now, pull 4 more checks and modify the scenario
and record as Tentative Hypothesis 1.
8.
Now, pull 2 final checks and further modify the
scenario and record as Tentative Hypothesis 3.
9.
Each group will be given a few minutes to meet
with other groups to compare data.
10.
Each group will come back together to formulate a
final hypothesis based upon all the available data. Record this in the notebook
as Final Hypothesis.
11.
One person from each group will present their
findings.
12.
In conclusion, answer the following questions in
the lab notebook
a.
What bits of information on the checks were
valuable to your group in formulating a hypothesis?
b.
What information was useless?
c.
List any misleading information that was
presented.
d.
Why do we say that a hypothesis in science is
“tentative”?
e.
How could your hypothesis become a theory?
f.
Is your final hypothesis “correct”? Explain.
New York State Science Standards:
Standard 5c: Uses evidence from reliable sources to develop
descriptions, explanations, and models.
Standard 5d: Proposes, recognizes, analyzes, considers and
critiques alternative explanations, and models.
Standard 5e: Identifies problems; proposes and implements
solutions; and evaluates the accuracy, design, and outcomes of investigations.
Standard 5f: Works individually and in teams to collect and
share information and ideas.
Standard 5g: Records and stores data using variety of
formats.
Standard 7b: Argues from evidence.