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

2. Once you have entered your class information, click on “Generate
Class Codes.” You will receive a unique class code for each class
that you entered on the previous form. Each class code consists of a
color followed by a five-digit number.
• Next, click on “Done”; this will take you back to the Web site
home page.
• Click on “Web Portion of Student Activities” (or have students
log onto the student Web site) and then on
“Lesson 1—What Is Sleep?”
• Enter the unique class code that you were assigned (and that
was e-mailed to you) to access the pages for entering data,
viewing data, or creating reports. At this site, you (or your students)
may enter the averages from each student’s sleep diary
(that is, average bedtime, average wake time, average number of
awakenings, average total sleep time, average number of caffeine-containing
drinks for morning, afternoon, evening) along
with each student’s corresponding sleepiness scale scores.
• Note that after entering an average bedtime and wake time, the
computer will calculate the average total sleep automatically.
3. Instruct students to work individually or in small teams. They
should develop a hypothesis, test it by using the data in the sleep
database, and provide a short, written summary of their findings.
When using the Web version of this activity, students have the
opportunity to analyze a much larger database. They can generate
many different hypotheses and reports keyed to specific descriptors
to test each hypothesis, as described below.
Students have a number of options for building custom reports of
records in the database, such as
a. all students who have entered data
b. females who have entered data
c. males who have entered data
d. those who have entered “yes” to snoring
e. those who have entered “no” to snoring
f. those who have entered “yes” to sleeping difficulties
g. those who have entered “no” to sleeping difficulties
h. those with a specific total sleep time
There are many more options. These summary reports provide the
calculated average for each parameter based on the portion of the
database that you selected. This database allows students to formulate
and test many different hypotheses by generating the appropriate
report and evaluating the resulting data. For example, hypotheses
that can be tested by using information in the database include
• Males sleep longer than females.
• Evening consumption of two or more caffeinated beverages
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Student Lesson 1