Considered is the open-ended question of the various means of marking an n-inch ruler so that the distance of any integral number of inches from 1 to n can be ascertained with a single measurement. The relationship between a sparsely marked ruler, which is one gracefully marked with the fewest number of marks, and specific discrete graphs is…

This theme journal issue is devoted to an exploration of peace and its history in Iowa. The features and activities include: Iowa's Peace Tradition; A Global View; World Map; A Mesquakie Tale; Swords into Plowshares; Make a Peace Crane; Student Protest; Goldfinch Patriotism Debate; Peace Meal; A Short Story; and Work It Out. (DB)

Providing teacher background on the concepts of wages and profits, paying particular attention to how elementary children experience and learn these concepts, this document presents 3 teaching units. The grade K-2 unit, "A Job Well Done," provides activities which focus on different types of jobs and the intrinsic and extrinsic rewards…

Clapping music for two performers provides the basis for a series of mathematical problems in combinatorics and group theory. A discussion provides insight about how to avoid overlooking global extrema in constrained max-min problems when solving systems of algebraic equations. (JJK)

This theme issue examines three historical and current problems surrounding wealth and power. The first article looks at King Leopold of Belgium and his exploitation of the Congo. The second article explores John D. Rockefeller and the Standard Oil monopoly. The final article examines the antitrust case against the Microsoft Corporation. Each…

Five sets of activities for students are included in this document. Each is designed for use in secondary school mathematics instruction. Topics include: (1) "5-Con Triangles"; (2) "Striking Sequences"; (3) "Invariants"; (4) "On the Ball," (a geometry lesson); and (5) "Coloring Maps." These topics focus on geometric and statistical concepts. Each…

Providing teacher background on the concepts of productivity and capital goods, this document presents 3 teaching units about these ideas for different grade levels. The grade K-2 unit, "How Do They Do It?," is designed to provide students with an understanding of how physical capital goods add to productivity. Activities include a field trip to…

This document includes an introduction to the role of government in the production of public goods and services and 3 brief teaching units. The introduction describes the nature of a mixed economy and points out why most people identify the production of goods and services with private enterprise rather than government. It develops a rationale for…

This publication features articles that illustrate how several Northwest teachers are using problem solving to achieve rigorous and imaginative learning in their classrooms. Articles include: (1) "Open-Ended Problem Solving: Weaving a Web of Ideas" (Denise Jarrett); (2) "Teenager or Tyke, Students Learn Best by Tackling Challenging Math" (Suzie…

The "Clipboard Connection" is a methodology to facilitate the rapid circulation of relevant pre-existing materials from Chapter 1 Technical Assistance Centers of relevant materials from Chapter 1 Technical Assistance Centers (TACs) to their clients, teachers of educationally disadvantaged children in resource centers. Each…

This issue explains the concept of externalities (benefits or burdens which accrue to society when there is a difference between the private cost or benefit of an action and the social cost or benefit of that action). These external or social costs of individual actions are often referred to as spillover costs. Three brief teaching units follow…

This teaching guide begins with an explanation of the role of money in the economy, focusing on its circulation or exchange. The use of money as a unit of account, a store of value, and a medium of exchange are explained. Three brief teaching units are included. The grade K-2 unit, "Money Counts," provides games and activities which develop the…

Designed to present communications problems faced by the elderly and to assist classroom teachers to develop activities for dealing with them, this booklet begins by examining stereotypes of older persons which minimize and distort communication with them. It outlines common misconceptions about the elderly, centering on their state of mind,…

This material asks social studies students in Canada to recognize the implications of the lifestyles of citizens in developed countries, and the power that consumers have to create change for a better world, to be agents of positive development. Development is seen as a four faceted process. This model implies that development is an approach to…

This compilation consists of 26 consecutive issues of the journal "Seedbed," published from February 1979 through July 1986. Each issue contains articles written by teachers for teachers. "Seedbed" is an outcome of the Teachers' Center Project at Southern Illinois University at Edwardsville. It is designed to be neither scholarly nor trivial. Each…