This study investigated how specific characteristics of multipiece, miniature, realistic play props (thematically open-ended village set versus thematically closed-ended train set) designed to enhance children's pretense influenced their scenario creativity, object transformations, and the frequency and use of specific internal-state language. The…

The primary purpose of this classroom experiment was to examine the effectiveness of concrete (hands-on) manipulatives as compared with virtual (computer-based) manipulatives on student review of fraction concepts in third grade and introduction of symmetry concepts in fourth grade. A pretest-posttest design was employed with a sample of 91…

In this quasi-experimental study, the researcher investigated the effectiveness of three tactual strategies and one non-tactual strategy of content specific vocabulary acquisition. Flash cards, task cards, and learning wheels served as the tactual strategies, and vocabulary review sheets served as a non-tactual strategy. The sample (n = 85)…

This study examined the effects on math performance of the use of the rekenrek, a manipulative developed by Adrian Treffers. The rekenrek looks like an abacus, but differs in that it is based on a five-structure and not a ten-structure system. It is comprised of two rows of 10 beads, each broken into two sets of 5 by color (i.e., in each row the…

"Progress in Mathematics[C] 2006" is a new core curriculum for students in kindergarten through grade 6. "Progress in Mathematics[C] 2006" differs substantively from "Progress in Mathematics[C] 2000" in both content and assessment material. "Progress in Mathematics[C] 2006" uses a sequence of systematic…

The purpose of this study was to describe elementary preservice teachers' difficulties with understanding algebraic generalizations that were set in an authentic context. Fifty-eight preservice teachers enrolled in an elementary mathematics methods course participated in the study. These students explored and practiced with authentic, hands-on…

This handbook provides activities for teachers who wish to provide concrete learning experiences for students in a humanistic environment in a mathematics laboratory program. It is designed to serve as a stimulant to encourage teachers to open their minds and employ their imaginations in developing further activities. It is expected that the…

Outlines New York and federal laws governing the collection of natural materials (plants, animals, birds, reptiles, amphibians, insects, bird nests) for teaching purposes. Notes sources of helpful information and required permits. (MH)

"Houghton Mifflin Mathematics" is a core curriculum for kindergarten through grade 6 students at all ability levels. According to its developer, "Houghton Mifflin Mathematics" emphasizes the five content strands and processes recommended by the National Council of Teachers of Mathematics Standards. At each grade level the…

This is the fifth in a series of publications to help teachers use a mathematics laboratory approach in the elementary school. It provides 64 activities, developed by teachers and field-tested in classrooms. It is designed to be used with any basic mathematics program, as a stimulant to encourage teachers to use their imagination to develop…

THIS CURRICULUM REPORT DESCRIBES A SPECIAL EDUCATION PROGRAM FOR EDUCABLE PRESCHOOL RETARDATES TOGETHER WITH AN ACCOUNT OF ITS DEVELOPMENT IN EXPERIMENTAL CLASSES OF NEW YORK CITY. THE SETTING AND PROCESS OF THE DEVELOPMENTAL CURRICULUM, THE CURRICULUM GUIDE AND ITS IMPLEMENTATION, AND THE OBSERVED BEHAVIOR AND GROWTH OF THE PARTICIPATING CHILDREN…