Reflection: Online Resources Are humans on the verge of collapse? (2 of 3) - Section 1: FRAME: Predicting future populations


The IPAT "equation" can be difficult for students to understand.  Some differentiated materials are included in this lesson, but teachers wanting to support students with conceptual frameworks related to human population growth might be interested in other resources.  Three resources that I have found to be useful include:

  1. World of 7 Billion: "Lessons for grades 9 – 12 are appropriate for a number of courses including Biology, Environmental Science (Honors, AP, IB), World History, Economics, AP Human Geography, and Global Studies. Topics covered include demographic differences worldwide, poverty and wealth distribution, global public health trends, community/societal decision making, climate change, gender equity, social justice, and human impacts on specific ecosystems." (Source:
  2. "Environmental Science 101 consists of 176 short video lessons that are organized into 18 chapters. Each video is approximately 5-10 minutes in length and comes with a quick quiz to help you measure your learning. At the end of each chapter, you can complete a chapter test to see if you're ready to move on or have some material to review. Once you've completed the entire course, take the practice test to see if you're ready to earn credit." (Source:
  3. Annenberg Learner Habitable Planet course: "What factors influence human population growth trends most strongly, and how does population growth or decline impact the environment? Does urbanization threaten our quality of life or offer a pathway to better living conditions? What are the social implications of an aging world population? Discover how demographers approach these questions through the study of human population dynamics." (Source:

  Alternatives to IPAT
  Online Resources: Alternatives to IPAT
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Are humans on the verge of collapse? (2 of 3)

Unit 4: Populations
Lesson 13 of 16

Objective: During this second of a three lesson sequence, students will be able to 1) develop a claim about the potential collapse of human society; 2) critically respond to other students' claims with counterclaims; and 3) evaluate a claim by applying the IPAT equation

Big Idea: The growing human population threatens the stability of Earth. How might we understand how human population growth and consumption patterns influence the environment in order to design more sustainable human development?

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carrying capacity of humans
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