A History of the Teaching of Elementary Geometry: With Reference to Present-day ProblemsTeachers College, Columbia University, 1906 - 163 strani |
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Zadetki 1–5 od 27
Stran ix
... ITALY 112-116 · The place of geometry in the curriculum Recent reforms in the teaching of geometry 112-115 115-116 RUSSIA . 116-119 The teaching of geometry in the elementary schools The teaching of geometry in the two types of normal ...
... ITALY 112-116 · The place of geometry in the curriculum Recent reforms in the teaching of geometry 112-115 115-116 RUSSIA . 116-119 The teaching of geometry in the elementary schools The teaching of geometry in the two types of normal ...
Stran 10
... Italy . When the Pythagorean school declined , after the death of its founder , the seat of learning was changed to Athens , which was then in the height of its power . 2 Geometry was studied arduously there by the Sophists , and ...
... Italy . When the Pythagorean school declined , after the death of its founder , the seat of learning was changed to Athens , which was then in the height of its power . 2 Geometry was studied arduously there by the Sophists , and ...
Stran 13
... Italy was disbanded for political reasons , its influence had already grown and other schools had been founded on the shores of the Mediterranean . About this time , fresh from her glories of the Persian wars , Athens , exceedingly ...
... Italy was disbanded for political reasons , its influence had already grown and other schools had been founded on the shores of the Mediterranean . About this time , fresh from her glories of the Persian wars , Athens , exceedingly ...
Stran 17
... Italy . We learn1 that the master lectured there on philosophy and mathematics , and that his listeners were of two kinds . In the first class the lectures were of a more general nature , and women were allowed to attend . In the second ...
... Italy . We learn1 that the master lectured there on philosophy and mathematics , and that his listeners were of two kinds . In the first class the lectures were of a more general nature , and women were allowed to attend . In the second ...
Stran 31
... Italian colonies . Indeed , in Italy , although geometry there was essentially practical , Euclid was not unknown , for Boethius ( cir . 500 A.D. ) incorporated in a work a statement of the propositions of Euclid I plus some others from ...
... Italian colonies . Indeed , in Italy , although geometry there was essentially practical , Euclid was not unknown , for Boethius ( cir . 500 A.D. ) incorporated in a work a statement of the propositions of Euclid I plus some others from ...
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algebra applications Archimedes arithmetic astronomy axiom began Boethius books of Euclid Cantor Chapter circle colleges conic sections constructions course Egyptians eighteenth century elementary geometry Elements employed Erfurt Euclid Euclidean France geome géométrie geometry was taught Gerbert Germany Geschichte given Greeks Günther Gymnasia Gymnasium heights and distances Heron of Alexandria high school Ibid influence institutions isosceles L'enseignement later Latin Legendre Leonardo of Pisa logical geometry lycées Math mathematics mathématiques mensuration ment mentioned method middle Monumenta Germaniæ parallel parallel axiom plane and solid plane figures plane geometry Plato practical geometry problems Proclus Professor proof proportion propositions pupils Pythagoreans secondary schools sequence shows sixteenth century solid geometry sphæra straight line study of geometry subject-matter of geometry surveying teachers teaching of geometry teaching of mathematics text-books texts Thales theorems theory tions to-day treatment triangle trigonometry universities Vormbaum Zittau
Priljubljeni odlomki
Stran 15 - The Comparison of the Five Regular Solids," was written by Aristaaus. This contained the theorem, "The same circle circumscribes the pentagon of the dodecahedron and the triangle of the icosahedron, these solids being inscribed in the same sphere.
Stran 28 - Two intersecting straight lines cannot both be parallel to the same straight line. 2. Only one straight line can be drawn through a given point parallel to a given straight line.
Stran 126 - ... abstract reasoning at a more advanced point? Where would be the harm in letting a boy assume the truth of many propositions of the first four books of Euclid, letting him accept their truth partly by faith, partly by trial — giving him the whole fifth book of Euclid by simple algebra; letting him assume the sixth book to be axiomatic; letting him, in fact, begin his severer studies where he is now in the habit of leaving off.
Stran 36 - Heron to prove his formula for the area of a triangle in terms of its sides, is...
Stran 41 - But geometry has a still greater connection with the art of oratory. Order, in the first place, is necessary in geometry, and is it not also necessary in eloquence? Geometry proves what follows from what precedes, what is unknown from what is known, and do we not draw similar conclusions in speaking?
Stran 10 - When is a straight line said to be ' placed in a circle ' ? 2. The angles at the base of an isosceles triangle are equal to...
Stran 28 - ... concerned with teaching than with learning, at all times. No doubt some of the geometries still teach as a self-evident truth the proposition that if two straight lines in one plane meet a third straight line so as to make the sum of the internal angles on one side less than two right angles those two lines will meet on that side if sufficiently prolonged.
Stran 24 - Proclus) invented this method of ex haustions, which may be considered as contained in two propositions. I. If from A more than its half be taken, and from the remainder more than its half, and so on, the remainder will at last become less than B, where B is any magnitude named at the outset (and of the same kind as A), however small. This proposition may be easily proved, and is equally true if the proportion abstracted each time be half or less than half.
Stran 14 - Elements' more carefully designed, both in the number and the utility of its proofs, and he invented also a diorismus (or test for determining) when the proposed problem is possible and when impossible. Eudoxus of Cnidus, a little later than Leon and a student of the Platonic school, first increased the number of general theorems, added to the three proportions three more, and raised to a considerable quantity the learning, begun by Plato, on the subject of the (golden) section*, to which he applied...
Stran 125 - Geometry : The subjects of Euclid I.-IV. with simple deductions, including easy loci and the areas of triangles and parallelograms of which the bases and altitudes are given commensurable lengths.