Search results for author:"Richard Lehrer"
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Computers in the Schools Vol. 10, No. 1 (1994) pp. 227–54
Discusses the concept of knowledge design and its implementation with hypermedia composition tools; explains the instructional model used in research conducted on hypermedia presentations created by a ninth-grade history class; summarizes students'...
Journal of Educational Computing Research Vol. 2, No. 3 (1986) pp. 337–55
This study examined the instructional effectiveness of three software learning environments--LOGO, drill and practice, and teacher-directed activities--for preschool special needs children. Cognitive distancing was applied to classify children and...
Problem Solving, Metacognition and Composition: The Effects of Interactive Software for First-Grade Children
Journal of Educational Computing Research Vol. 3, No. 4 (1987) pp. 409–27
An experimental study compared the instructional effectiveness of Logo programming, commercially available software designed to aid composition and problem solving, and traditional teaching methods for low socioeconomic status first-grade students....
Journal of the Learning Sciences Vol. 7, No. 3 (1998) pp. 351–86
Describes a two-year design experiment in which sixth and seventh grade students designed hypermedia documents to be used by their classmates. Consensual patterns of students beliefs emerged. Presents information on how teachers assisted with the...
Journal of Educational Psychology Vol. 83, No. 1 (1991) pp. 124–33
Whether software-based mediated instruction reduces the incidence of misconceptions and errors by children learning the LOGO computer language was studied with 24 fourth and 46 second graders. Mediated instruction reduced errors and misconceptions...
Journal for Research in Mathematics Education Vol. 46, No. 4 (August 2015) pp. 423–454
We examined the codevelopment of mathematical concepts and the mathematical practice of defining within a sixth-grade class investigating space and geometry. Drawing upon existing literature, we present a framework for describing forms of...
Tracing the Evolution of Pedagogical Content Knowledge as the Development of Interanimated Discourses
Journal of the Learning Sciences Vol. 15, No. 4 (2006) pp. 549–582
For this article, the development of 1 teacher's pedagogical content knowledge (Shulman, 1986) was tracked longitudinally across 2 years as she taught a new instructional unit in middle school mathematics. Growth in pedagogical content knowledge is...
International Journal of Computers for Mathematical Learning Vol. 5, No. 2 (2000) pp. 115–41
Describes the design and assessment of a video-intensive case-based multimedia tool called HyperMeasure for educating prospective teachers about primary children's mathematical reasoning on linear, area, and volume measure. Reports on a descriptive...
Journal of Educational Computing Research Vol. 18, No. 2 (1998) pp. 123–45
Describes the design of a hypermedia tool for helping preservice teachers learn about the growth and development of children's mathematical reasoning based on research in cognitive science, and discusses results of an experiment that used single...
Journal of the Learning Sciences Vol. 8, No. 2 (1999) pp. 245–89
Assesses the cognitive consequences of reflective teaching practices compared to inquiry teaching practices on the acquisition and transfer of LOGO computer programming for 2nd- and 5th-grade students. Finds that children that participated in the...
Journal of the Learning Sciences Vol. 7, No. 3 (1998) pp. 429–49
A design context for developing children's understanding of the natural world via designing, building, testing, and evaluation of models was studied. Children were asked to design models of human elbows which provided opportunities to develop their...
Supporting the Development of Conceptions of Statistics by Engaging Students in Measuring and Modeling Variability
International Journal of Computers for Mathematical Learning Vol. 12, No. 3 (December 2007) pp. 195–216
New capabilities in "TinkerPlots 2.0" supported the conceptual development of fifth- and sixth-grade students as they pursued several weeks of instruction that emphasized data modeling. The instruction highlighted links between data analysis, chance,...
International Conference on Mathematics / Science Education and Technology 2000 (2000) pp. 2–3
Synergy Education Press, Inc. is a small company whose aim is to provide high-quality research-based teacher professional development materials for elementary mathematics and science educators. We will provide packages of multimedia and text-based ...
EdMedia + Innovate Learning 1999 (1999) pp. 1414–1415
Our interest in the design of cases is motivated by the need to develop tools for elementary teachers that will help them understand how students think about forms of mathematics typically unfamiliar to teachers, like geometry, space or measure. In...