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Students will compare aerial photos of their area from the past with current photos, noting differences and then conducting ground truth investigations to determine what happened. Finally, students will use the information they gather about past... (View More)

Students will research and evaluate information about global warming, identify decision-making criteria for action or lack of action, and decide what level of certainty is sufficient to take action. They should debate the issue of when we know... (View More)

Students will "digitize" photographs of human faces using various grid sizes and shades of gray. Through this activity, they gain an understanding of image resolution and how much information is needed to answer various questions.This introductory... (View More)

Students will collect samples of particles in the air on simple slides they make themselves. They will classify, count and chart their findings, draw conclusions, make predictions, and compare their findings to other available data. Supplies needed... (View More)

This introductory chapter for educators provides background information to support classroom investigations of global climate change. Topics addressed include the structure and composition of the atmosphere, General Circulation Models (GCMs), 2xCO2... (View More)

In this introductory global change investigation, students gather and record visual and written data from their surroundings, and through analysis, show how the sampling window chosen for examination can affect an outcome, sometimes resulting in... (View More)

Students critically interpret graphical data and evaluate and discuss the difficulties inherent in interpreting and forecasting long and short term trends in this introductory climate change investigation. Graphs of data needed for this exercise are... (View More)

In this open inquiry activity introducing concepts of remote sensing, students will discuss and research different invisible phenomena. They will then test and verify the existence of selected invisible phenomena by using measurement or detection... (View More)

In this introductory activity, students learn about perspective, range and resolution and explain how the optimal viewing zone varies with what it is they want to know. Students view a large object such as a poster, store front, or even a brick wall... (View More)

Students will use remotely sensed images and topographic maps to classify land cover types in their watershed. A field trip to specific sites will allow the students to ground truth cover types found on the remotely sensed images and extrapolate... (View More)

Keywords: Ground truth