"Mental work" recorded in primary mathematics classes as part of the Classroom Interaction Process is not a simple, single activity of drill or quiz but a set of overlapping activities with different functions. A more analytical approach to mental work is advocated to enhance its usefulness as a classroom activity. (Author/SJL)

Two problem-solving posters with a Halloween theme are included. These activity sheets are designed to be easily reproduced for classroom use. (MP)

A short history of mathematical Olympiads in the People's Republic of China is given. Sample problems are included. (MK)

Presents weekly activities that focus on strategies derived from generalizations and patterns found in explorations using hundreds charts, manipulatives, and other models. (KHR)

Presents some ideas about how teachers can foster mathematical communication by encouraging students to find multiple solutions to problems. Discusses three problems that help develop communication ability in mathematics. Views communication of multiple solutions as an instructional strategy to help students make sense of mathematics. (KHR)

Discussed is the performance of college students on the task of solving chemistry problems involving Lewis structures. Difficulty of the task and of individual problems is described. A taxonomy of skills associated with Lewis structures is presented. (CW)

Investigates the effects of two context variables on the performance of seventh-grade students on a qualitative and numerical proportional reasoning test. Explores the nature of the relationships between rational number skills, qualitative reasoning about ratios, and numerical proportional reasoning. (Author/YP)

Utilizes the problem of determining the number of different ice cream cones and cups that can be made from a choice of 31 flavors to investigate the concepts of combinations and permutations. Provides a set of six related problems with their answers. (MDH)

Various methods for solving the problem of finding when the hour and minute hand of a watch have the same direction are explored. The relationship of these problems to the educational environment and the maturity of the student are discussed. (CW)

First of three experiments compared third graders who had studied worked, two-step arithmetic word problems to those learning through conventional problem solving. The former grouped showed superior test performance. In experiments two and three, children presented with integrated worked examples outperformed those presented with split-source…

This paper describes a proportional reasoning problem set within a real-life context and a complete analysis of one small group discussion of this problem over the course of a 90-minute block. The seventh-grade students' discourse is described to provide insights into typical mathematical interpretations of this problem, as well as some…

Basing their conclusions on studies in which (1) textbook problems were classified by students and parents and (2) texts were coded on several variables (e.g. sexually stereotyped occupations), the authors find textbooks are biased. They suggest several teacher strategies for countering this bias. (SD)

Physics 30 is a 12th-grade science course for students in Alberta, Canada. This document is the final test for the course. Intended for administration during June 1989, it contains 49 multiple-choice questions and 4 written-response questions. Two-and-one-half hours are allowed for completing the test. No answer key is included since scoring is…

Physics 30 is a 12th-grade science course for students in Alberta, Canada. This document is the final test for the course. Intended for administration during January 1989, it contains 49 multiple-choice questions and four written-response questions. Two-and-one-half hours are allowed for completing the test. No answer key is included since scoring…

This resource package deals with elementary level mathematics in daily living, substituting newspapers as a refreshing change from mathematics texts. A total of 40 exercises are intended to provide review and reinforcement for skills previously taught in formal lessons. Skill or concept areas included are: reading large numbers; basic operations;…