GEOG 486
Cartography and Visualization



A. Objectives

By the end of this lesson you should be able to:

  • Identify the data representations that are effective for mapping count data.
  • Indicate why choropleth maps are not good representations for count data.
  • Produce effective small-scale thematic maps for count data.
  • Construct a layout using multiple data frames with visual hierarchy that appropriately fits with the information to be read.

B. Project Overview

This is the second week examining issues related to presenting data for thematic display and working with the Philadelphia crime data. In week 1 you learned about classifications and choropleth maps. This week we will discuss and use other map representations, especially those that are better for representing count data (rather than rates as you used in your choropleths). Your task this week is to create a series of maps (on one layout) using different kinds of data representations that portray different aspects of the Philadelphia burglary data.

C. Lesson Checklist

Lesson 5 is one week in length. (See the Calendar in Canvas for specific due dates.) To finish this lesson, you must complete the activities listed below. ou may find it useful to print this page so that you can follow along with the directions.

Step Activity Access/Directions
1 Read the concepts introduced for this lesson. See the Concept Gallery page to begin.
2 Work through the Lesson 5 Project. See the Proportional Symbol, Graduated Symbol, Dot Density Maps page to begin.
3 Submit the Lesson 5 Project. Detailed instructions located on the Lesson Project Tasks page.
4 Continue working on Capstone Project Proposal. Visit the Capstone Project Proposal page. Note: You will not be turning the proposal in until Lesson 6.
5 Take Lesson 5 Quiz. Take Lesson 5 Quiz in Canvas.


If you have any questions now or at any point during this week, please feel free to post them to the Lesson 5 Discussion Forum. While you are there, feel free to post your own responses if you, too, are able to help a classmate.