Results 231 to 240 of about 58,230 (252)
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The Mathematics Teacher, 1963
Students have some difficulty with the concepts and constructions of the altitudes, the perpendicular bisectors of the sides, the medians, and the angle bisectors of the triangle. Some students seem to show little understanding of the words of the definitions, and the mechanics of straightedge and compass construction often do not help to clarify their
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Students have some difficulty with the concepts and constructions of the altitudes, the perpendicular bisectors of the sides, the medians, and the angle bisectors of the triangle. Some students seem to show little understanding of the words of the definitions, and the mechanics of straightedge and compass construction often do not help to clarify their
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Journal of Geometry and Physics, 2005
Abstract An isomorphism between the Lobachevsky and de Sitter’s world geometries with the symplectic geometry and the Lie algebra of binary quadratic forms is used to derive the altitudes concurrence for the Lobachevsky and de Sitter triangles.
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Abstract An isomorphism between the Lobachevsky and de Sitter’s world geometries with the symplectic geometry and the Lie algebra of binary quadratic forms is used to derive the altitudes concurrence for the Lobachevsky and de Sitter triangles.
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2021
The aim of this research is to examine the efforts of 7th grade students to draw altitude in parallelograms and triangles. Moreover, it is to reveal the difficulties students experience in drawing altitude. For this purpose, a case study from qualitative research methods was managed.
ŞENGÜN, Kazım Çağlar, YILMAZ, Süha
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The aim of this research is to examine the efforts of 7th grade students to draw altitude in parallelograms and triangles. Moreover, it is to reveal the difficulties students experience in drawing altitude. For this purpose, a case study from qualitative research methods was managed.
ŞENGÜN, Kazım Çağlar, YILMAZ, Süha
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International Journal for Technology in Mathematics Education
Throughout the years of the history of the development of mathematics, starting with the ancient mathematicians, new things were discovered from time to time, which made it a central component of the computerized world, which serves us in many fields, with the young "swimming" in it, and the adults asking: how could we live without it! Even these days,
Moshe Stupel, Yehuda Fisher
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Throughout the years of the history of the development of mathematics, starting with the ancient mathematicians, new things were discovered from time to time, which made it a central component of the computerized world, which serves us in many fields, with the young "swimming" in it, and the adults asking: how could we live without it! Even these days,
Moshe Stupel, Yehuda Fisher
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2021
In this study I have used a theoretical framework integrating the theory of Fischbein and the theory of Shulman for examining the algorithmic knowledge of teachers. This framework has shaped the approach to both the formal and algorithmic aspects of knowledge, with reference to several components included in mathematical knowledge as well as ...
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In this study I have used a theoretical framework integrating the theory of Fischbein and the theory of Shulman for examining the algorithmic knowledge of teachers. This framework has shaped the approach to both the formal and algorithmic aspects of knowledge, with reference to several components included in mathematical knowledge as well as ...
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104.07 An inequality for the altitudes of the excentral triangle
The Mathematical Gazette, 2020openaire +2 more sources
106.28 Inequalities involving the inradius and altitudes of a triangle
The Mathematical Gazette, 2022openaire +1 more source
2007
Kroz učilice pripremljene u programu dinamičke geometrije izvedeni su i dokazani neki poučci koji uključuju ortocentar trokuta.
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Kroz učilice pripremljene u programu dinamičke geometrije izvedeni su i dokazani neki poučci koji uključuju ortocentar trokuta.
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104.35 Proof without Words: A right triangle ABC with altitude AH = BC
The Mathematical Gazette, 2020Victor Oxman, Moshe Stupel
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On the Altitudes of the Triangle and of the Tetrahedron
The American Mathematical Monthly, 1948openaire +2 more sources