EngageNY
Exponential Decay
I just bought that car, how can its value decrease already? Individuals use the data of a depreciating car value to create an exponential decay model. They then compare exponential decay and growth equations.
Howard County Schools
Exponential Decay Exploration
How can you model exponential decay? Explore different situations involving exponential decay functions and decreasing linear functions by performing activities with MandM candy, popcorn kernels, and number cubes.
Curated OER
Himalayan Herds: Fractional Exponential Growth
Young scholars solve problems by identifying exponential growth and decay and differentiating between patterns, relation and functions. In this algebra lesson, students apply concepts of exponential growth to solve problems.
Cornell University
Bacteria Take Over and Down
Bacteria outnumber all other forms of life on Earth. Scholars observe the growth of bacteria in petri dishes to understand their role in maintaining good health. Then, they observe the growth of bacteria after they introduce...
Curated OER
Twenty-Nine Various Exponential Function Problems
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.
Curated OER
What Causes Tooth Decay
Students investigate oral hygiene. For this personal health lesson, students discover the parts of a tooth and how to best protect them from disease. Students examine the effects of acids on tooth enamel and calcium.
Curated OER
Endocrine Disruptors in Our Drinking Water: Should We Be Concerned?
Young scholars investigate the different hormone contaminants in the water supply. In this math instructional activity, students analyze data tables and graphs. They demonstrate exponential growth and decay using frog populations.
Curated OER
Carrying Capacity of Ecosystems
Students define population and carrying. In this algebra lesson, students explore exponential growth and decay based on animals and things that grow or decrease exponentially. They graph their findings and discuss their results as they...
Curated OER
Food Safety Lab
Students use the scientific method to investigate the role of temperature in microbial growth. In this food preservation lesson, students set up an experiment with fruit in room temperature and in a refrigerator. They record the...
Curated OER
Forest Management ~ Diseases and Pests that Effect a Good Harvest Stand
The forestry presentation found here lists and describes a variety of tree diseases. A few unappetizing photos are included to show symptoms of some of these diseases, or the insects and fungi that cause them. If you have a class that is...
Curated OER
Moldy Jell-O
Mini mycologists plan an experiment to determine what affects the growth of mold on gelatin. A list of available materials is provided, but the procedure needs to be designed by the lab group. A data table is also provided in which to...
Curated OER
What Functions do Two Graph Points Determine?
Your algebra learners write linear, exponential, and quadratic equations containing the same two graph points in this collaborative task.
Mathematics Vision Project
Module 3: Polynomial Functions
An informative module highlights eight polynomial concepts. Learners work with polynomial functions, expressions, and equations through graphing, simplifying, and solving.
Curated OER
Pollution Solutions
Learners visit a local park to test the quality of the aquatic environments. They search for sources of pollution and examples of pollution control. Based on their obeservations and experiments, they rate their local environment.