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Unit Plan
Radford University

Transformational Graphing in the Real World: Bacteria – Growth or Decay?

For Teachers 9th - 12th Standards
Grow—not decay—your knowledge of exponential functions. Young mathematicians graph exponential functions and explore how transformations affect the graphs. They decide whether the functions represent growth or decay in the context of...
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Worksheet
2
2
Flipped Math

Unit 7 Review: Exponential Functions

For Students 9th - 12th Standards
Take a break from learning new information and take time to review. Scholars review the unit by completing some practice problems. They rewrite expressions using exponents, solve exponential equations, graph exponential functions,...
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Lesson Plan
Kenan Fellows

Half-Life

For Teachers 9th - 12th Standards
Scholars shake their way to understanding half-life with the help of candy. They observe and record which side candy lands on to graph the exponential decay in the fifth lesson of seven integrating chemistry and algebra. Combining...
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Assessment
Illustrative Mathematics

Carbon 14 Dating in Practice I

For Students 9th - 12th Standards
How old is the plant? Here is a task that presents the exponential decay function for carbon 14 in a plant. Pupils use the function to estimate the amount of carbon 14 in the plant when it died and analyze the function to find what the...
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Worksheet
Curated OER

Exploring Exponential Models

For Students 11th Standards
Explore the difference between exponential growth and decay with this activity. Use tables, graphs, and algebraic methods to gain insight. The notion of an asymptote is also introduced. 
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Lesson Plan
Virginia Department of Education

Exponential Modeling

For Teachers 10th - 12th
Investigate exponential growth and decay. A set of six activities has pupils collecting and researching data in a variety of situations involving exponential relationships. They model these situations with exponential functions and solve...
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Lesson Plan
EngageNY

Modeling with Exponential Functions

For Teachers 10th - 12th Standards
These aren't models made of clay. Young mathematicians model given population data using exponential functions. They consider different models and choose the best one.
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Worksheet
Curated OER

Twenty-Nine Various Exponential Function Problems

For Students 11th - Higher Ed
In this exponential growth and decay worksheet, students identify equations as growth or decay, find balance in an account, find half-life, identify interest rate, identify the initial amount, and identify the growth factor. 
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Worksheet
Curated OER

Pre-calculus Unit 3 Test 2

For Students 10th - 12th
Students will solve exponential function problems, graph exponential functions, find the value of logarithms, determine future value, and compound interest. In this Pre-calculus lesson, students will use the properties of logs to solve...
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Lesson Plan
Curated OER

Exploring the Exponential Function

For Teachers 9th - 12th Standards
Learners collect and analyze data regarding exponential functions of the form y = abx.  Young scholars explore the affects of changing parameters on the graph of the function. 
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Worksheet
Shmoop

Functions Worksheet 5

For Students 9th - 12th Standards
To the point and deeper thinking are both types of questions included in the learning exercise. Begin the practice of solving quadratics and then finish with five questions asking quadratic and exponential application problems. 
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Lesson Plan
Curated OER

Making Money and Spreading the Flu!

For Teachers 9th - 11th Standards
Paper folding, flu spreading in a school, bacteria growth, and continuously compounded interest all provide excellent models to study exponential functions. This is a comprehensive resource that looks at many different aspects of these...
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Lesson Plan
Curated OER

Murder in the First Degree - The Death of Mr. Spud

For Teachers 9th - 12th Standards
Secondary learners investigate exponential functions in a real-world scenario. They collect data on the temperature of a cooling baked potato, enter the data into lists, and graph the data using a scatter plot before finding an...
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Lesson Plan
Curated OER

NUMB3RS Activity: A Matter of Half-Life and Death

For Teachers 11th - 12th Standards
Students investigate exponential decay.  Students explore the biological half-life of Cesium-137.  Students investigate the Goiania Accident of 1987 which is considered one of the worst incidents in the history of the Atomic Age. 
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Worksheet
Curated OER

Exponential Growth and Decay

For Students 11th
In this Algebra II worksheet, 11th graders solve verbal problems that involve exponential growth or decay.  The two page worksheet contains a combination of seven multiple choice and free response questions.  Answers are provided. 
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Lesson Plan
Curated OER

Chill Out: How Hot Objects Cool

For Teachers 9th - 12th Standards
Teach how to explore exponential equations.  For this Algebra II lesson, learners investigate the graph that occurs as a hot liquid cools.  Students model the data algebraically.
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Interactive
CK-12 Foundation

Geometric Sequences: Bacteria Colony

For Students 11th - Higher Ed Standards
Show budding mathematicians how to model a diminishing bacteria colony two ways—graphically and algebraically. Using the coordinate axis, pupils create a graph to represent the decay of a bacteria colony. They determine the number of...
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Lesson Plan
Curated OER

Exponential Functions f(x) = abx

For Teachers 9th - 12th Standards
Students define exponential functions and graph the equation. In this algebra instructional activity, students discuss exponential growth and decay as they graph their functions. They differentiate between the base of growth and decay.
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Worksheet
Curated OER

Exponential Growth and Decay

For Students 9th - 11th
In this algebra activity, students solve word problems. They identify the graph as exponential growth or decay. There are 7 questions with an answer key.
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Lesson Plan
Curated OER

Carbon 14 Dating, Variation 2

For Teachers 9th - 12th Standards
Your archaeologists begin this task with a table of values to estimate the time passed based on the half-life of Carbon 14 remaining in a plant. They then move on to find when a specific amount of Carbon 14 is present in the same plant,...
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Lesson Plan
Curated OER

Basketball Rebounds

For Teachers 9th - 12th Standards
Your young basketball players will build a table and develop a general formula for a decaying exponential scenario involving the rebound distance of a bouncing ball. Using a CBR and graphing calculator can make this even more hands-on...
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Activity
PBL Pathways

Potassium-Argon Dating

For Students 10th - Higher Ed Standards
Find the age of a fictional sample of rocks using a genuine approach. A well-designed lesson asks young mathematicians to use exponential modeling to analyze half-life. As a project-based learning activity, scholars communicate their...
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Lesson Plan
Curated OER

Forms of Exponential Expressions

For Teachers 9th - 12th Standards
Your young physicists analyze the forms of four equivalent exponential expressions representing an amount of a radioactive material in a substance. They show how each expression is equivalent to the others and what aspects of the decay...
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Lesson Plan
Curated OER

Infestation to Extermination

For Teachers 9th - 12th Standards
Students solve problems with exponential growth and decay. In this calculus lesson, students relate exponential functions to infestation and extermination. They take the derivative to find their answer.

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