I attached the rubric as well as asigment. I can do this myself, but I am going out of the country to visit my family , and I need to get this done but I do not have the time. Thank you so much.Name
Date
Math Portfolio Rubric
UNIT NAME: EXPONENTIAL AND LOGRITHMIC FUNCTIONS
Portfolio Project: Viruses and Viral Videos
Excellent (4)
Good (3)
Criteria
(Weight)
Reasoning and
Communication
(x1)
Modeling
and/or
Use of Tools
(x2)
Presentation
(x1)
Fair (2)
Poor (1)
The student
provides a clear,
logical, and
precise
explanation of
his/her reasoning
and planning.
The student
provides an
adequate
explanation of
his/her reasoning
and planning.
The student
provides a partial
explanation of
his/her reasoning
and planning.
The student
provides a limited
explanation of
his/her reasoning
and planning.
The portfolio
project
demonstrates
excellent modeling
and/or use of tools.
The portfolio
project
demonstrates
adequate
modeling and/or
use of tools.
The portfolio
project
demonstrates
some modeling
and/or use of tools.
The portfolio
project
demonstrates little
or no modeling
and/or use of tools.
The portfolio
project
demonstrates a
fully developed
understanding of
exponential
functions and how
changes in the
coefficients affect
the behavior of the
graph.
The portfolio
project
demonstrates an
adequate
understanding of
exponential
functions and how
changes in the
coefficients affect
the behavior of the
graph.
The portfolio
project
demonstrates a
basic
understanding of
exponential
functions and how
changes in the
coefficients affect
the behavior of the
graph.
The portfolio
project
demonstrates an
inaccurate
understanding of
exponential
functions and how
changes in the
coefficients affect
the behavior of the
graph.
© 2015 Connections Education LLC. All rights reserved.
Points
Awarded
/4
/8
/4
Total points:
/16
Comments
© 2015 Connections Education LLC. All rights reserved.
2
Name
Date
Viruses and Viral Videos Portfolio
Directions: Ever wonder where the term viral came from when talking about
shared electronic media? Is it an accurate term to use? In this portfolio, you are
going to explore the relationship between actual viral growth and the spread of
electronic media.
Viruses
1. First you will focus on actual viral growth inside a human body. Pick a virus
and research its growth rate. If you are having trouble finding a growth rate
for a specific virus, make up your own growth rate. Use your growth rate to
create an exponential growth function. Make a table for the number of virions
(virus particles) that can grow inside a human body. Start with one virion on
the first day, and continue the table for two weeks. How does that compare to
the number of cells in a person’s body? You will submit the following.
a. a comparison to the overall number of cells
b. a growth function
c. a table of virions
2. Now use a graphing calculator or computer program to graph your function
from part 1. Your body also has ways of hunting and destroying viruses it
finds in your body. Describe how the behaviors of the graph would change if
you took into consideration other factors, like the immune system working or
the physical limitations of your body. Can you think of any additional factors
that could be considered? You will submit the following.
a. a graph of the number of virions in the body
b. additional factors to be considered
c. changes in the graph from other factors
3. Could the same general exponential growth model apply to the spread of a
virus from person to person, instead of growth of a virus inside a body? What
factors could influence the spread of a virus from person to person? Write a
brief paragraph comparing the growth of a virus inside a single person to the
spread of a virus from person to person. How might it be the same, how
might it be different? You will submit a brief paragraph.
Viral Videos
4. Next, think about how videos are posted and shared online. First, examine
an unpopular video on a single social medium. Suppose that, on the very
first day of this video was posted, it received its highest quantity of views.
As the days go on, the video receives fewer and fewer each day. Create an
exponential function that models the number of views the video gets each
day. Determine for yourself the number of times the video was initially
viewed on its first day, or its initial value, and decide on a daily decay factor
© 2015 Connections Education LLC. All rights reserved.
less than one. Now graph the function and make sure to track its number of
daily views over a one-month period. You will submit the following.
a. an unpopular video function
b. an unpopular video graph
5. Look at a popular video. Create another exponential function with a smaller
initial value (i.e., the number of times the video was viewed on its first day),
but this time, with a growth factor that is greater than one. Graph the
popular video function and make sure to show its number of daily views over
a one-month period. What are the differences in the functions and the
behavior of the graphs between the popular and the unpopular videos? You
will submit the following.
a. a popular video function
b. a popular video graph
c. a comparison of the unpopular video to the popular video
6. What are some factors that you did not consider in your model that could
influence the spread of a viral electronic media? Write a brief paragraph that
describes some additional factors that you could take into account, and how
that might change the behavior of the function and graph. You will submit
the following.
a. a brief paragraph
© 2015 Connections Education LLC. All rights reserved.
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