The first paper in this volume, "Geomorphic Effects of Flood-Control Channel Works" (H. Rasid), examines the basic mechanisms of morphologic instabilities in man-made or modified channels in terms of their altered hydraulic characteristics and geomorphic responses to such induced changes. Two tables, two figures, and a 33-item…

In the face of widespread geographic ignorance, the article applauds the improved status of geography in the schools, describing it as the science best able to meet the challenge of ensuring that students' mental maps of the world are filled in with great and accurate detail. The field is defined through a multiple definition as both a physical…

This issue of Update contains four separate geography lesson plans on the topics of: (1) the mobility and interactions of people, goods, and ideas; (2) creating thematic maps and comparing the relative wealth of South American countries; (3) identifying and applying key geographic concepts; and (4) human-environment interactions. Each lesson plan…

This document summarizes the results of a national survey that tested 4th, 8th, and 12th graders' ability to analyze geographic data in a variety of formats; explain complex geographic phenomena and processes; and show knowledge of relationships between human and geographic events. The survey tested three content dimensions: space and place,…