Biological - NIH Office of Science Education - National Institutes of ...

Figure 2.2. Astronaut data.
Student comments should reflect that sleep is a dynamic process.
This means that the body remains physiologically active with characteristic
changes in brain and muscle activity, as well as changes in
other physiological parameters. Sleep is not uniform, but rather consists
of discrete stages that cycle throughout the night.
For classes using the print-based version
of this lesson:
1. Introduce the print-based version of this lesson by explaining to the
class that they will use a hypothetical scenario to learn about the
physiology and major stages of sleep.
You can refer to statement 8 on Master 1.1: “Sleep is time for the
body and brain to shut down for rest.” (False.) How did the students
respond and why? Is sleep really a time when not much occurs physiologically?
Students can now investigate this idea.
2. Show the class the transparency of Master 2.1, Astronaut Scenario,
and read it aloud.
3. Give each student a copy of Master 2.2, Astronaut Telemetry Evaluation
Form, and single copies of Masters 2.3, 2.4, and 2.5, which contain
the telemetry data for the three astronauts.
As an alternative, students may work in teams of three. If they work
in teams, have each student analyze data for a different astronaut and
discuss it with their team. This approach ensures that each student is
actively participating in the activity.
Assessment:
Instruct students to
answer questions
about animal sleep
such as a) Do other
animals sleep? b) How
is their sleep similar to
human sleep? and
c) How is their sleep
different from human
sleep? Make available
to students relevant
information from the
Information about
Sleep section and
from Web sites listed
in the Additional Web
Resources for Teachers
section.
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Student Lesson 2