This article presents a study in which applications were integrated in the Multivariable Calculus course at the Technion in the framework of supplementary tutorials. The purpose of the study was to test the opportunity of extending the conventional curriculum by optional applied problem-solving activities and get initial evidence on the possible…

Learning to question is essential for determining pathways of conservation and development in southwestern Amazonia during a time of rapid global environmental change. Teaching such an approach in graduate science programs in regional universities can be done using play-acting and simulation exercises. Multiple working hypotheses help students…

When serial neurocognitive assessments are performed, 2 main factors are of importance: test-retest reliability and practice effects. With children, however, there is a third, developmental factor, which occurs as a result of maturation. Child tests recognize this factor through the provision of age-corrected scaled scores. Thus, a ready-made…

Children's number sense in kindergarten was used to predict their calculation fluency in second grade (N = 198). Using block entry regression, usual predictors of age, reading, memory, and verbal and spatial cognition were entered in the first block and number sense measures were added in the second block. Number sense measures contributed a…

The mathematical performance of 182 third and fourth graders in 8 different areas of mathematics was examined. The children belonged to 4 achievement groups: children with mathematic difficulties (MD only), children with both mathematic and reading difficulties (MD-RD), children with reading difficulties (RD only), and normally achieving children…

Analysis of variance (ANOVA) was invented in the 1920s to partition variance of a single dependent variable into uncorrelated parts. Having uncorrelated parts makes the computations involved in ANOVA incredibly easier. This was important before computers were invented, when calculations were all done by hand, and also were done repeatedly to check…

This manual provides information needed to meet the standards for pesticide applicator certification. Section one is concerned with the morphology, life cycle and breeding areas of mosquitoes and the diseases resulting from their presence. The second section covers similar categories in relation to the black fly population. Calculation methods and…

A math teacher describes an approach to help special education students solve addition and subtraction problems through a system involving finger counting. The systems for subtraction and addition solve the problem faced by students unable to memorize facts and unable to use their fingers when numbers exceeded five. (Illustrations of the approach…

A calculation method using the 10 fingers to perform the four basic operations with whole numbers can be an introductory and supplementary approach to math instruction for handicapped children. Using the finger calculation method to learn arithmetic is supported by J. Piaget's stages of cognitive development. Studies showing the worth of this…

A method of computing percentile ranks from the logistic distribution function is described. The method was applied to three distributions of number-right scores from the Law School Admission Test, and compared to percentile ranks computed using linear interpolation. (Author/JKS)

The purpose of this study was to determine conditions under which young children enumerate by counting in multiples. Contrasting effects of different numerosities and perceptual arrangements are discussed in terms of contextual support for the use and development of numerical skills among young children. (Author/RWB)

The difference between estimation (the mental skill of making an educated guess) and approximation (finding a result precise enough for a specific purpose) is discussed. (MNS)

A multiple baseline design was used to demonstrate the effectiveness of a self-instruction training sequence across three groups of three preschool handicapped students to improve their ability to count a requested number of objects from one to ten. Eight of nine students showed improved accuracy in counting objects and generalized these gains to…

A math teacher recounts how six weeks of computer assisted instruction, about which she had been very skeptical at first, resulted in substantial gains for six learning disabled students in addition, subtraction, multiplication, and division. (CL)

Researchers in education and the social sciences make extensive use of linear regression models in which the dependent variable is continuous-valued while the explanatory variables are a combination of continuous-valued regressors and dummy variables. The dummies partition the sample into groups, some of which may contain only a few observations.…