Curated OER
Was Kepler Correct?
Learners investigate the elliptical orbit around the Sun. They use the information gathered to measure the distance to the Sun from the closest orbital point and the farthest orbital point.
Curated OER
What Causes the Seasons?
Third graders investigate why the seasons occur throughout the year. They read a traditional wisdom story pertaining to the seasons. They create their own wisdom stories about the seasons and act them out for the class.
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Visiting the Arctic Circle
Students familiarize themselves with the Arctic Circle by locating it on a globe and wall map. They discuss they climate in the North Pole and the reasons for its low temperatures. They compare and contrast the climates of the Arctic...
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Stargazers And Skywatchers
Students recognize the daily motion of the Sun across the sky, defining the main directions of east, west, south and north. They see how the first calendars were based on changes in the Sun's noontime elevation, and on locations of...
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Stargazers and Skywatchers
Students observe the daily motions of the sun and relate them to the functions of a sundial. They determine the locations of sunrises and sunsets and determine how the elevation of the sun effects temperature.
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Tracking Sunrise and Sunset
Students collect, record, and graph the sunrise and sunset times. They explain how the relationship between the tilt of Earth's axis and its yearly orbit around the sun produces the seasons.
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Navigation
Young scholars study the basic methods for finding one's position on Earth. Latitude can be deduced from the height above the horizon of the pole star or of the noontime Sun, while longitude requires an accurate clock giving universal time.
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The Celestial Sphere
Young scholars are introduced to the celestial sphere, describing its apparent rotation and the special role of the pole star.
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Astronomy With a Stick
Young scholars find the altitude of the Sun at 10 A.M., at solar noon, and at 2 P.M. by measuring the height of the gnomon and the length of the shadow at each time. They record the measurements in their notebooks for later conversion.
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Length of the Day & the Seasons
Young scholars answer questions for each of the graphs and record their answers on the Student Observation Sheet. They use the data they have collected, hypothesize which graph represents which month of the year using each graph. They...
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