Describes a method for determining the rate constants of enzyme reactions involving two substrates with the use of double reciprocal plots. (MLH)

Graphs, bars, charts, and diagrams have been used by designers, writers, and scientists to communicate. Now, research suggests that graphic organizers benefit teaching and learning. This article describes graphic organizers: sequential, conceptual, hierarchical, cyclical, Venn, fishbone or Ishikawa, squeeze and stretch, why-why, t-chart, KWL…

This article presents problems to challenge students over and above the standard curriculum problems assigned at a Course I level. Every additional problem in the article can be solved using only the tools provided by Course I. (AIM)

Describes an activity in which students are given a set of designs and are required to use their electronic grapher to reproduce the designs. The activity reinforces students' understanding of lines and of the formula for a linear function. (MKR)

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…