2025 APHG Unit 1: Types of Maps

Azimuthal Projection

map projection that shows a disk-shaped portion of the earth

Cartogram Map

thematic map that distorts the size of regions to show a variable

Choropleth Map

thematic map that uses colors to show the distribution of data

Dot-Density Map

thematic map that uses dots to show the density of data

Gall-Peters / Peters Equal Area Projection

map projection that preserves area but distorts shape

Graduated/Proportional Symbol Map

thematic map that uses symbols of different sizes to show a variable

Isoline Map

thematic maps that uses line to connect areas of equal value

Mercator Projection

map projection that preserves shape and direction but distorts area at the poles

Political Map

map that shows borders

Robinson Projection

map projection with an globe-like appearance that distorts all aspects