![]() ![]() Degrees of longitude vary in size, decreasing as one moves in both directions toward the poles.Ĥ.Each degree of latitude represents 69 miles, each minute 1.15 miles, and each second 0.02 miles.You can write a coordinate in many different ways to precisely express a location on earth.For example, one reads "47* 15' 25" as "47 degrees, 15 minutes, and 25 seconds." Explain that each number reflects location in degrees, minutes, and seconds.Lines of longitude run vertically and provide locations east and west.Lines of latitude run horizontally and provide locations north and south, depicting north as a positive number and south as a negative number.Show the students a globe, and explain to them the lines of latitude and longitude. Refer to the NM data-collection form, and point out the section on taking latitude and longitude.ģ. Ask students how they can validate the location of objects placed on the diagram in the previous activity. Part 2: Latitude and Longitude Lines and Using GPS Unitsġ. Use transparent tape so students can move the objects around easily in the next section. Ask students to attach each item to the diagram where they think it belongs. ![]() They will add these to the schoolyard diagram.Ħ. Each student will draw the object listed on his or her note card on small pieces of paper. Write the points of interest you come up with on note cards, and give one to each student.ĥ. Brainstorm different elements they'd like to include on the map, such as flagpoles, swings, trees, baseball diamonds, or lights.Ĥ. Ask students to sketch a map of the schoolyard in their field journals, noting important landmarks and geography.ģ.
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