Interpreting Maps

In todays class we talked about map scales and projection.  Map scales are the level of detail and the amount of area covered on the map depends on its map scale.  It's presented as a ratio or fraction which shows the relationship of a feature's size on a map vs. it's actual size on Earth.  Projection is a systematic transformation of the longitudes and latitudes and longitudes of locations from the surface of a sphere or anything 3D into locations on a paper which is 2D.  An example of projection is transferring locations on Earth's surface to a flat map.  Maps cannot be made without projection.  All maps aren't 100% accurate because that's impossible.