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Grigoropoulos, Jenny E. – International Journal of Progressive Education, 2019
Business ethics is a highly discussed and debated subject in today's corporate and business world, as well as in educational and academic circles. There are certain parameters, which influence the extensive level and degree to which ethics has been analyzed by scholars and researchers in recent years, such as globalization, technology, intangible…
Descriptors: Foreign Countries, Middle School Students, Blindness, Concept Formation
Oxman, Victor; Stupel, Moshe – International Journal of Mathematical Education in Science and Technology, 2021
The present paper describes a dynamic investigation of polygons obtained by reflecting an arbitrary point located inside or outside a given polygon through the midpoints of its sides. The activity was based on hypothesizing on the shape of the reflection polygon that would be obtained, testing the hypotheses using dynamic software, and finding a…
Descriptors: Mathematics Instruction, Preservice Teachers, Preservice Teacher Education, Geometric Concepts
Horzum, Tugba; Arikan, Ahmet – International Journal of Progressive Education, 2019
This study investigated the concept images of blind students about the polygon concept. For this purpose, four open-ended questions were asked to five blind middle school students. During the interviews, geometric shapes were presented with raised-line materials and blind students were given opportunities to construct geometric shapes with…
Descriptors: Foreign Countries, Middle School Students, Blindness, Students with Disabilities

Senk, Sharon L. – Journal for Research in Mathematics Education, 1989
Secondary geometry students were tested for van Hiele level of thinking, geometry knowledge and achievement, and proof-writing achievement. Proof-writing achievement correlated significantly with van Hiele level entering geometry knowledge and geometry achievement. The predictive validity of the van Hiele model was supported. (Author/DC)
Descriptors: Cognitive Development, Concept Formation, Geometric Concepts, Mathematics Achievement

Jenson, Robert J. – Arithmetic Teacher, 1988
Suggests one possible way to combine the technological facility of the computer with students' natural abilities for concept formation. Describes the software the "Geometric preSupposer." (PK)
Descriptors: Computer Assisted Instruction, Computer Uses in Education, Concept Formation, Elementary Education