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Graphing Exponential Functions
Integrating technology into the 10th
grade classroom
By: Shawn McClory

Technology Integration
• Rationale: When graphing exponential
functions it is important to see the differences
in functions based on varying factors in the
equation. Visuals such as the St. Louis arch
can show students how it appears in everyday
life and other web based technologies can
show students the different behaviors of these
functions.

Internet Content
• There are a lot of different examples on the
internet of graphing different exponential
functions.
• The next several slides show examples of
information from the internet to enhance this
lesson

Khan Academy
• Khan Academy is a very reliable source for
helping teach material that someone is
struggling with. This link takes you to a video
from them that addresses graphing
exponential functions:
https://www.khanacademy.org/math/algebra/
algebrafunctions/graphing_functions/v/graphingexponential-functions

ThinkWell Blog
• On this site there is a lot of information that
help fully grasp the idea of graphing
exponential functions. There are some helpful
videos as well as explanations that will
address different areas of graphing.
• http://blog.thinkwell.com/2011/03/graphingexponential-functions-useful-patterns.html

YouTube Video
• Thsere are a lot of videos on YouTube that are
created by different people to address
graphing exponential functions. These all have
different approaches and can help if a couple
ways do not make sense because there are
different ways of looking at it. Here is one
example:
http://www.youtube.com/watch?v=ls78_2UBcdY

Agency for Population Growth
• Exponential functions are used to monitor
population growth which can be a rising
problem for different species. Here is one
organization that looks at population growth:
• http://www.csa.com/discoveryguides/ern/01
mar/overview.php

Population Control of Cats and Dogs
• Population control of everything can be
monitored through different exponential
functions. This is an agency that speaks to
monitoring the population of cats and dogs.
• https://www.avma.org/KB/Policies/Pages/Dog
-And-Cat-Population-Control.aspx

Animal Population Control
• This is the CT state agency that monitors
animal population in general. They also use
exponential functions and this gives a
background of why it is necessary to do this:
• http://www.ct.gov/doag/cwp/view.asp?a=136
7&q=259104

Inspiration
• Step by Step guide of how to graph after a
lesson in case a student forgets the order of
the steps

Online Graphing Calculator
• On this website students can enter equations
and graph them to see how different
equations can change the graph that comes
from it. This can be very beneficial to seeing
the different behaviors of the graphs.
• http://www.meta-calculator.com/online/

Worksheets to practice
• The following website links have worksheets
for practice for the students
• http://www.kutasoftware.com/FreeWorkshee
ts/Alg2Worksheets/Graphing%20Exponential
%20Functions.pdf
• http://www.utdanacenter.org/mathtoolkit/do
wnloads/lessons/alg2_exponential_ws1.pdf
• http://sites.tenafly.k12.nj.us/~jmoreng/Precal
culus/P%7BE(x)%7DOld.pdf

Subject Specific Resource
• This website gives a very in depth explanation
and background of exponential functions. This
could be used in a classroom by having the
students do a little research before actually
learning about the functions. It gives a very good
overview and could have the students learn some
on their own before the real lesson
• http://www.purplemath.com/modules/graphexp.
htm

Uses of Internet
• Similar to a previous website this one allows students
to graph any function they want and see the behavior.
This could be very helpful to realizing patterns in the
way graphs look:
http://www.walterzorn.de/en/grapher/grapher_e.htm
• It could also be very beneficial for students to see how
it is applied in real life so a website that lists some of
these could be interesting for them. This is one that I
found that does it but there are a lot of possibilities:
http://www.uiowa.edu/~examserv/mathmatters/tutori
al_quiz/log_exp/realworldappsexponential.html

Web 2.0
• On Facebook there is a page where you can “like”
exponential functions and it shows you other people
who have. This gives you an opportunity to connect
with other people who know about the topic:
https://www.facebook.com/pages/Exponentialfunction/109582162394532
• It can also be difficult to do some problems so there is
a website that students could ask questions on and
anyone can post helpful hints and solutions. This could
connect people from all over the world on this one
topic: http://mathhelpboards.com/pre-calculus21/help-exponential-function-word-problem3434.html

Reliability of Sources
• Some of the sources used for this are much
more reliable than others. Those that came
college or other educational website I trust
much more than those that didn’t. Similarly
those who anyone can post to can be tough
because people do not always know as much
about a subject as they believe they do. In the
notes all of the URLs are listed.

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Mc clory, shawn graphing exponential functions

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Mc clory, shawn graphing exponential functions

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