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Gold Seal Lesson:
Blood Pressure
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Copernicus
Education Gateway
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Subject:
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Science
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Grade:
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9-12
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ICLE Standards:
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Occupation - use a sphygmomanometer to measure
blood pressure
Information - acquire, organize, and maintain
information use a computer to process information
Writing - communicate information in a written
report
Reasoning -
discover a rule or principle underlying the relationship between
sets of data
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Performance Task:
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Ramona is a senior studying nursing at the local
technical school, with plans to continue her education at a nursing school
in the local hospital. Ramona's goal is to become a Registered Nurse and
later continue her studies to become a Physician's Assistant.
Ramona's experience in the nursing program was put to use when her mother
complained of headaches and dizziness. Ramona immediately made an
appointment with the family doctor where Ramona's suspicions were confirmed.
Her mother was suffering from hypertension (high blood pressure). In the
doctor's office, her systolic pressure measured 165 millimeters of mercury
(mm Hg) and her diastolic pressure measured 110 mm Hg. The doctor placed
her on a low sodium diet. Further, he told her that if her blood pressure
had not dropped significantly within two weeks, he would prescribe some
medicine. The doctor asked Ramona to measure her mother's blood pressure
and sodium intake daily and record the data in tables. He wanted to see the
data and a report interpreting the results in two weeks.
In this activity students will use a spreadsheet to analyze the data
collected to determine if a cause and effect relationship between high
blood pressure and sodium intake exists.
Procedure:
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Transpose the data Ramona collected (in the tables below) into a
computer spreadsheet.
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Using the graphing function in the spreadsheet, create a line graph of
the systolic blood pressure, diastolic blood pressure, and the milligrams
of sodium intake.
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Using the statistical function in the spreadsheet, determine the
correlation coefficient between the systolic blood pressure and sodium
intake.
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Interpret the results of the graph and the correlation coefficient.
Table 1
Daily Systolic Blood Pressure (mm Hg)
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2 |
3 |
4 |
5 |
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7 |
8 |
9 |
10 |
11 |
12 |
13 |
14 |
| 165
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160
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155
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146
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141
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138
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135
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132
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130
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125
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125
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124
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126
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124
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Table 2
Daily Diastolic Blood Pressure (mm Hg)
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| 1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
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14 |
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110
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109
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103
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103
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101
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98
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85
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90
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90
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88
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87
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85
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86
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85
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Table 3
Daily Sodium Intake (mg Na)
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14 |
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5000
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4500
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4200
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4000
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3800
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3500
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3200
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2800
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2600
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2400
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2400
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2300
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2200
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2000
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Materials needed:
Computer
Spreadsheet software with statistical functions
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Knowledge / Skills:
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Understand the best procedures for statistical
data collection, organization, and display. (m5)
Understand the nature and purpose of a variety
of technical formats such as business letters, memos, instructions, policy
statements, technical proposals, user manuals, lab reports, etc. (ela30)
Understand the transport (absorption and
circulation) of materials throughout the body and related disorders such as
high blood pressure, leukemia, anemia, and coronary thrombosis. (s39)
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Rubric:
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4 Points =
The student was able to transpose the data in the table into a
computer spreadsheet accurately and efficiently. Without assistance he or
she could create a line graph of the three sets of data using the graphing
function in the spreadsheet. The student was able to use the spreadsheet
statistical function to determine the correlation coefficient between
systolic pressure and sodium intake. He or she could understand the results
of the data in the graph and the correlation coefficient and discover the
relationship among/between the sets of data. The student could write a
report effectively communicating his/her interpretations of the results.
3 Points = The student could accurately transpose
data from the tables to a computer spreadsheet. He or she could create a
line graph of the three sets of data with assistance. With coaching, the student
was able to use the spreadsheet statistical function to determine the
correlation coefficient between the systolic pressure and milligrams of
sodium. Assistance was necessary for the student to read the results of the
data in the graph, understands the correlation coefficient, and discover
the relationship among/between the sets of data. He or she had to rewrite parts of the report so that it was
clear in meaning.
2 Points = The student had to correct some
transposed data entered in the spreadsheet. He or she needed considerable
help and extra time to create a line graph. The student could not use the
statistical function in the spreadsheet to determine the correlation
coefficient between systolic pressure and sodium intake. He or she could
not accurately interpret the results in the data. The written report was
clear and accurate after it was rewritten.
1 Point = The student did not complete the project and make a written
report of the results.
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Keywords:
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LIFE SCIENCE
HUMAN BODY
TECHNOLOGY INTEGRATION
DATA COLLECTION
DATA ANALYSIS
DATA DISPLAY
GRAPH
TABLE
CORRELATION
CIRCULATION
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Grades:
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Kg [] - 1 [] - 2 [] - 3 [] - 4 []- 5 [] - 6 [] - 7 [] - 8 [] - 9 [X]
- 10 [X] - 11 [X] - 12 [X]
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ICLE Application:
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D
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© 2000 International
Center for Leadership in Education
1587 Route 146 - Rexford - NY - 12148
518.399.2776 Fax: 518.399.7607
137
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