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Hotchalk Global

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Global Warming: Fact or Myth?




9, 10, 11, 12  

Title: Global Warming: Fact or Myth?

Grade/Subject Level: 9 – 12


Overview:     Engage students through presentations, video clips, worksheets, and reading to develop an understanding about global warming. The various media sources may generate interest among students about causes of global warming and what biases are found in the media regarding this issue.

Purpose:       Develop awareness among students regarding global warming. Understand the causes of global warming and methodologies used to determine Earth’s temperature.

Lesson Objectives:

  • Students will develop a clear definition of global warming.
  • Students will review sources of data that are used to reconstruct the Earth’s climate record and will identify discernable, cycle patterns.
  • Students will understand that Earth’s climatic systems are dynamic and ever changing.
  • Students will recognize agreement among various data sets and methodologies that have been used to determine the Earth’s climate history and temperature record.
  • Students will understand the debate concerning whether the temperature spike that has occurred recently is an anomaly.
  • Students will identify bias found in media portrayals of the science of global warming.
  • Students will develop a personal answer to the question, “Is global warming happening?”



   Age of instrumentation, proxy data, hockey stick graph, IPCC,                 sponsorship, global warming, ice core data, bore hole pollen data, tree ring data, coral core data, ocean sediment core data, scientific corroboration

Materials Needed:

The Truth About Global Warming, 2.5 min: Warming/Lesson 2/L2 Truth About Climate

Climate Catastrophe Cancelled, 3 min: Warming/Lesson 2/L2 Catastrophe


60 min

Lesson Procedures:

  1. Distribute the Student Reading: The Temperature of the Earth, for students to read as homework or in class.
  2. Activity 1: Lead students through slide show, reviewing key information from the background reading, probing for understanding, and presenting new information using the Teacher Guide.
  3. Activity 2: Introduce video activity. Lead students through decoding of the two video clips using information in the Teacher Guide and the Student Worksheet, Activity 2, on decoding the video clips.
  4. Activity 3: Distribute Student Worksheet, Activity 3: Trust and Sponsorship. Lead discussion of credibility, sourcing, and bias using questions in the Teacher Guide.
  5. Activity 4: Lead the Take a Stand activity using the questions in the Teacher Guide.



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