II.+BLP1-+Student+Entrance+to+BLP1

=BLP1- Population Dynamics and the H1N1 Virus=

Image 1. Picture taken of the H1N1 influenza virus from the CDC Influenza Laboratory.

I. Overview
In this lesson you will be learning about human population dynamics and the effect of the H1N1 flu virus (a influenza virus) on the human population of the United States. You will initially learn about the H1N1 virus and basic human population dynamics. Next, collaboratively, you will investigate human population dynamics as related to the spread of a disease through a hands-on activity and an online applet.

Simply stated, we will investigate human population growth with and without a major H1N1 pandemic. We will examine this growth in mathematical language.

II. Vocabulary and Background Information
A. First, watch the movie that your instructor shows you about the H1N1 virus. media type="youtube" key="TVLo2CtB3GA" height="364" width="445"

B. Second, as a class we will define the following terms:

 Human Population Dynamics 1 Human Population Dynamics 2  Unlimited Growth 1 Unlimited Growth 2 Exponential Growth Exponential Growth 2 Limited Growth Limited Growth 2 Logistic Growth Logistic Growth 2

III. Exploration of Human Population Dynamics
Next as a class we will explore human population dynamics when a population is not being affected by disease using SAS Curriculum Pathways. Your instructor will help you do so. We will divide into 10 or fewer groups of 2-4 students.

Bio1Team1 Bio1Team2 Bio1Team3 Bio1Team4 Bio1Team5 Bio1Team6 Bio1Team7 Bio1Team8 Bio1Team9 Bio1Team10

You will respond using the Discussion tab. When your group is ready to respond to a question, make sure to reply to the correct question and in the subject line put "Bio1Team#" where # is your group number.

Key questions:

1. Explain in words mathematically what the graph reflects when the birth and death rate are equal. Is this a case of unlimited or limited growth? Does the graph represent exponential or logistic growth? 2. Explain in words mathematically what the graph reflects when the birth rate is greater than the death rate. Is this a case of unlimited or limited growth? Does the graph represent exponential or logistic growth? 3. Explain in words mathematically what the graph reflects when the death rate is greater than the birth rate. Is this a case of unlimited or limited growth? Does the graph represent exponential or logistic growth?

Exploration of Human Population Dynamics when affected by H1N1
Next as a class we will explore human population dynamics when a population is being affected by H1N1 using SAS Curriculum Pathways. Your instructor will help you do so.

Key questions:

4. Explain in words mathematically what the graph reflects under the normal parameters of influenza (the Spanish flu of 1918- a H1N1 derivation). Is this a case of unlimited or limited growth? Does the graph represent exponential of logistic growth? 5. Explain in words mathematically what the graph reflects under the parameters of H1N1 (Set the "Virulence" to 0.013 as H1N1 is less virulent than the Spanish flu). Is this a case of unlimited or limited growth? Does the graph represent exponential of logistic growth? 6. Examine the graph when the number of infected individuals is chosen- explain in words what this mathematically represents?

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IV. Tracking the Spread of H1N1
Next, your group will investigate the spread of H1N1 flu in a given region of the U.S. using an Applet from USA Today ([]). You will place your information on your team pages that are linked below.

1. Collect time and population counts for your area of the U.S. 2. Using a spreadsheet program with graphing ability, create a table and then make a graph from that table. You will be plotting infected people/million humans (Y axis) by time- days (x axis). Make a scatter plot and make sure to label your x and y axis. 3. Hold down shift-command-4 on your .mac and take a snapshot of your graph. Upload it to the Wiki and embed it in your group page using the insert image icon on the wiki Editor toolbar. 4. Underneath your image, add a graph number and title to your graph. (example: "Graph 1. H1N1 data from Region 5 of the U.S.") 5. Interpret your graph and compare your to the other regions of the U.S.

Example Page Bio1Team1 Bio1Team2 Bio1Team3 Bio1Team4 Bio1Team5 Bio1Team6 Bio1Team7 Bio1Team8 Bio1Team9 Bio1Team10