Globe:
Describe the lines of distortion:
Longitude is the measurement east or west of the prime meridian. Longitude is measured by imaginary lines that run around the Earth vertically (up and down) and meet at the North and South Poles. These lines are known as meridians. Each meridian measures one arc degree of longitude. The distance around the Earth measures 360 degrees.
The meridian that runs through Greenwich, England, is internationally accepted as the line of 0 degrees longitude, or prime meridian. The anti meridian is halfway around the world, at 180 degrees. It is the basis for the International Date Line.
Half of the world, the Eastern Hemisphere, is measured in degrees east of the prime meridian. The other half, the Western Hemisphere, in degrees west of the prime meridian.
what distortion do you see?
When we flatten a round Earth onto a piece of paper, there will be problems with any projection we choose. Just as flattening a ball of cookie dough stretches and pulls the dough into a new surface, the map projection stretches and pulls the parts of the Earth into a new surface so it all can lie flat on the paper.
Since we know that all map projections have errors (distortions), we have to know what types of errors a map has so that we can pick the best projection to show the information we want to map. Maps will have distortions of one or more of these properties: Distance, Direction, Area, Shape, or Scale.
why use a globe?
Globes and maps are a crucial learning tool in a myriad of classes - social studies, geography, and science class, to name a few. Globes help children understand where they live, where other places in the world are located, as well as learning the unique shape of the Earth. Although globes have been used as teaching aids for quite some time, interactive globes have become a mainstay in many elementary classrooms. These interactive globes can electronically identify certain regions and provide relational understanding to many locations. Interactive globes incorporate technology to answer questions and provide information, allowing for an immersive experience for teacher and student alike. few more points:
(i'll add the rest in another one)
