Various counting tasks were presented to 24 congenitally, totally blind children, aged 3-13, to determine the behaviors employed to ensure accurate counting. Three dimensions of tactile strategies were found, including "scanning,""organizing," and "partitioning." A developmental progression in the ontogenesis of each…

Outlines infants' and preschoolers' implicit protoquantitative reasoning schemas and shows how these combine with early counting knowledge to produce mathematical concepts of number. Reviews research on elementary school children's informal and invented arithmetic, and evaluates implications for mathematics education. (Author/BJV)

Describes a take-home exam story problem based on stoichiometry. Requires the student to determine the percentage of phosphoric acid in a large container of nitric acid if a man fell into it. Provides assumptions, clues, and an acceptable solution. (MVL)

This review of research finds that, when IQ and reading ability are controlled, "true" math deficits of students with learning disabilities, attention deficit disorders, and attention deficit hyperactive disorders (ADHD) are specific to mathematical concepts and problem types. Slow computation affects problem solving by increasing attentional…

Report provides new data concerning children's accuracy as measured by previous studies and clarifies progress of first graders during entire year on difficult single-digit addition and subtraction problems. Discussion focuses on advantages of an adding on interpretation of subtraction and the importance of emphasizing conceptual understanding…

Primary students can learn about computation and estimation by reading a story about the use of money, then following up with estimation and calculation activities. Intermediate students can explore the relationship between addition and multiplication using a computation game, collaborating on when, how, and why they use addition and…

Concepts from cognitive psychology are presented as an alternative framework to arithmetic instruction for students with disabilities. The approach, which emphasizes reasoning, communication, and problem solving, is applied to addition, division, multiplication, subtraction, and word problems. The purpose of arithmetic instruction is asserted to…

A 7-month longitudinal study of 20 2- and 3-year-old children shows that children at an early age already know that counting words each refer to a distinct numerosity, although they do not know to which numerosity. It takes children a long time to learn the latter. (SLD)

Examined whether superior mathematics performance of students from Japan, Korea, and China may be due, in part, to differences in cognitive representation of number affected by Asian language features. Results suggested that the unique characteristics of the Asian number language system may facilitate the teaching and learning of mathematics,…

Analysis of data from approximately 58,000 deaf and hard of hearing students (ages 6 through 21) analyzed relationships among reading comprehension and mathematics computation achievement scores, classroom attributes, and demographic factors associated with achievement. Adjustment of scores for demographic factors suggested higher performance for…

A study of 255 fifth graders and 177 eighth graders from 12 randomly chosen Mexican schools was conducted to identify and characterize the students' computational estimation skills and strategies. Data from computational estimation tests and selected interviews revealed that Mexican students employed general estimation processes similar to U.S.…

Four classroom activities for French instruction are described, including an exercise in contextual grammar, lessons in interpretation of charts and graphs, an exercise in extracting cultural information from text, and practice in calculating in French and applying basic economic concepts. (MSE)

Presented is an experiment where the concentrations of three metal ions in a solution are simultaneously determined by ultraviolet-vis spectroscopy. Availability of the computer program used for statistically analyzing data using a multivariate linear regression is listed. (KR)

Parents can encourage their children to become better mathematical thinkers. The article describes how to assist children with problem solving and presents activities that develop specific skills (estimating, counting, sorting, volume, fractions, multiplication, money, story problems, patterning, averaging, computation, magic squares, plane…

Compares exam scores in a pharmacy calculations course of 55 students in a traditional lecture format and 55 in computer-assisted instruction (CAI). Scores were similar before separation into groups and after six weeks of instruction by either method. The CAI program was easy to use and well received by students, and this group spent less time…