Algebra, an important skill, provides a way to represent situations so they can be analyzed carefully. In the new algebra classroom, students will listen and talk to one another while learning to understand problems and devise solutions. Teachers will organize tasks (involving graphing, rating, and ranking techniques) to help students discover the…

Presents suggestions for helping elementary teachers learn students' names and helping students feel comfortable in the first week of school while studying mathematics skills related to graphing and data. The activities involve graphing students' names and reading a children's book then creating mathematics activities out of the lead character's…

Explores developing a concept image of functions. Includes assessment items, describes students' responses to these items, and interprets those responses. (KHR)

Offers graphical proof of the proposition that the dynamically efficient allocation of a depletable, nonrenewable resource allows higher net benefits to users in both time periods than any other allocation. States that in this proof the result is more general and does not require the numerical specification of other previous models. (JEH)

Presents a graphing activity to show transverse and longitudinal waves using spreadsheets. (Author/NB)

Used software environment to examine algebra students' attempts to reformulate narratives using verbal and iconic lexical sets. Described how natural language text turns into a script of events and processes, how the qualitative graphic description of the script is sketched using iconic notations, and how the graph turns into a subject for…

Discusses the use of a dynamic geometry software package to improve teaching of graph theory in basic graph sketching and in isomorphic, bipartite, and planar graphs. (JRH)

Examines the relative effectiveness of the traditional lab method and the microcomputer-based laboratory (MBL) for improving student understanding. Examines three areas of achievement: graphing interpretation skills, and interpreting motion graphs and understanding of motion. Results indicate that MBL laboratories are more effective than…

Presents evidence that there exists much confusion regarding the connection between the algebraic and geometric aspects of slope, scale, and angle. Participants responded to a simple but non-standard task concerning the behavior of slope under a non-homogeneous change of scale. Analysis of the responses reveals two main approaches termed…

Presents an activity in which students gather and analyze data involving the compatibility of human blood types. Uses student surveys, Venn diagrams, and random numbers. Includes activity sheets. (Author/NB)

Investigates adults' long-term memory of mathematics learned in high school. Reports findings regarding the subjects' attempts to draw graphs of simple linear functions. Categorizes diverse responses to the task of drawing a graph of a linear function. Analyzes in detail three cases based on recall theories that explain the mechanism of recalling…

Describes the new concept of HYPERBASE and its relationship to classical hypermedia; a multimedia database retrieval system (SOPHIADOC) and its features in relation to the HYPERBASE concept; and an experimental use of SOPHIADOC to organize and scroll selected images on the "First Emperor of China" videodisk. Fifteen project publications…

A Monte Carlo study determined the Inverse Scree Test's shape with various numbers of true groups and under different conditions of distribution shape and sample size. Six simulated distributions of 3,000 subjects each and 1 with 1,500 were created. Findings suggest relative distribution independence, number independence, and modest…

Reasons for color in sedimentary rocks are explored. Graphs relating the color of rock and corresponding organic content and oxidation state of iron, and of the temporal evolution of a rock sample, are presented. The development of these graphs is discussed. (CW)

Describes a model for the workload of a full text retrieval system and of a simulation model for a version of an existing system called Full/Text. The effectiveness of various data caching strategies using the 2 models are explored, and the impact of various parameters on the strategies are evaluated. (13 references) (LRW)