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In this activity, learners build a sextant to measure the altitude, or height above the horizon, of an object. The activity was originally designed to accompany a previous NASA-funded educational program, entitled The Sun in Time.

In this investigation students explore how resolution affects information content on remotely sensed images, relate remote sensor resolution (pixel size) to information content, and gain an understanding of the information content of different kinds... (View More)

Students examine a series of remotely-sensed images of the US, scaling from the continent to San Francisco, and distinguish the concepts of scale and resolution. At greater resolution, students are able to identify different land classes on the map,... (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 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 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)

In this activity serving as an introduction to remote sensing, students list what they remember seeing in a familiar environment, check their accuracy, and discuss the results. Then they apply their experiences and new skills to an unfamiliar... (View More)

This is an activity about the Sun's position in the sky. Learners will use a clear plastic hemisphere to create a model of the sky and mark the position of the Sun in the sky on the hemisphere several times throughout the day. From this information,... (View More)

Audience: High school
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