This unit was previously tried out during the spring of 1965 in New Jersey, and in the fall of 1965 in conjunction with the Introduction to Geography Unit (SO 000 431). It was then revised for this trial with four other units in the fall of 1966. At the beginning of the trial, the participating seventy teachers administered the verbal sections of the Cooperative School and College Ability Test (SCAT), Form 3A, to 3,034 seventh through twelfth grade students. They also administered a pretest in geography. Following the teaching of each unit, a unit test was administered to all of the students to measure understanding of the basic concepts taught in the unit. Students and teachers then filled out forms evaluating unit effectiveness. Teachers also evaluated the activities in each of the four parts of the unit: 1) The Location of Settlements; 2) Accessibility and Land Use Patterns; 3) Growth of the Cities; and, 4) Planning for Growth. In conclusion, many teachers commented that the greatest strength of the unit was its success in motivating and interesting a large number of students over an extended period, along with its timeliness and relevance to the lives of the students. The unit test and the results, the evaluation forms and the statistics are appended. See SO 000 430, SO 000 432, and SO 000 434 for the reports on the other units. (SBE)