The sign-chart method is often used to solve polynomial inequalities involving products or quotients. Presented are examples that extend this method to solve higher-degree polynomial, radical, exponential, logarithmic, absolute-value, and trigonometric inequalities and whose graphic representations lead to intuitive discussions of continuity. (MDH)

Based on a teacher's experience of teaching third-grade mathematics, this article reviews some of the problems faced in representing mathematical concepts to children, respecting children as mathematical thinkers, and creating a sense of community in the classroom. (MDM)

Presented is a conversation with students that gives an insight into the ways students think about decimals. Students were introduced, with the use of a calculator, to decimal notation and systematic experimentation. What students had learned throughout this conversation is discussed. (KR)

Investigated was the learning of the mathematical uses of "more,""fewer," and "less" at a very early stage in the development of ideas. (CW)

Presented is a method which may be used to help students start their own original investigations and create their own conjectures about fundamental mathematics concepts. An example of this method is provided. (CW)

Presents thought experiments and science activities for helping students think about quantum mechanics and the idea of randomness. (PR)

Dutch researchers investigated the effects of Obuchova's method of teaching measurement to kindergarten children with no knowledge of conservation or seriation. Results indicated training was highly effective. Skills were transferred to conservation tasks not taught in training. Transfer to concepts not included in training was also observed. (SM)

Using R. S. Siegler's retrieval-required task, 19 male and 22 female third graders were examined before they had been introduced to multiplication in school. Examination of error patterns suggests that the basic assumptions of the distribution-of-associations model need to be tested directly and that the retrieval-required task confounds retrieved…

Features an assignment involving average monthly temperatures that can serve as an example of curve-fitting for a periodic function. (WRM)

Explains the strange effect a crosswind has on motion. (WRM)

Proposes that introductory physics courses extend the analysis of one-dimensional motion to a more sophisticated level. Gives four experimental setups and graphical analysis of the distance, velocity, and acceleration in the vertical and horizontal directions. (WRM)

Based on an analysis of student success rates in developmental math courses and the results of a survey of math programs at other community colleges in Virginia, the math faculty at Southwest Virginia Community College increased the number of credit hours for developmental mathematics courses to allow students more time to master fundamental…

Suggests using everyday examples to help students describe the relationships that emerge from the evidence displayed on line graphs during science investigations. (WRM)

Describes a lesson that provides an opportunity for students to obtain the equation for a line describing data they have collected, use the equation they have derived to set up an Egg Bungee Jump, and relate the numbers in the equation to the physical properties of the bungee jump. (WRM)