Here is a step-by-step guide to using this lesson plan in the classroom/laboratory. We have suggested these steps as a possible plan of action. You may customize the lesson plan according to your preferences and requirements.

1.Introduce the topic by using a reading and an associated activity

Reading and Associated Activity (30 – 60 min)

• Introduce the topic of Riemann sum and the types of Riemann sums by using the reading,“Calculating the area under a curve using Riemann sums” from D. Q. Nykamp at Math Insight.
• Conduct the activities using the applets to further explain how to calculate the area under a curve by using the Riemann sum and how this value can converge to the definite integral.

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2. Conduct a classroom/laboratory activity

Classroom/Laboratory activity (~60 min)

Then, help your students apply the learned concepts through a hands-on classroom/laboratory activity, “U.S. and China CO2 Emissions”, by Thomas J. Pfaff at Sustainability Math. This activity uses CO2 emission data and population data for the U.S. and China for the period 1980 to 2015.

• analyze CO2 emissions for each country
• compare the CO2 emissions for the countries by using Riemann sums for the data from 1980 to 2015
• create a proposal for emission reduction by considering past and current CO2 emissions for the two countries
• Download the material in the project, “U.S. and China CO2 Emissions”, under Calculus I – Integration Related Projects.
• Students can perform the exercises described in the Word file by using the data in the Excel file.

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3. Conduct a classroom/ laboratory activity

Suggested questions/assignments for learning evaluation

Use the tools and the concepts learned so far to discuss and determine answers to the following questions:

• For a given function f(x) and n, calculate the left Riemann sum and right Riemann sum.
• For the same f(x) (as above) and double the value of n (from above), calculate and compare the left and right Riemann sums.
• Using Riemann sums, calculate and compare the total CO2 emissions (data records provided in the activity) for the U.S. and China from 1980 to 2015. What are the possible effects of these CO2 emissions on the Earth’s climate?

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Use this lesson plan to help your students find answers to:

1. For a given function f(x) and n, calculate the left Riemann sum and right Riemann sum.
2. For the same f(x) (as above) and double the value of n (from above), calculate and compare the left and right Riemann sums.
3. Using Riemann sums, calculate and compare the total CO2 emissions (data records provided in the activity) for the U.S. and China from 1980 to 2015. What are the possible effects of these CO2 emissions on the Earth’s climate?