A History of the Teaching of Elementary Geometry: With Reference to Present-day ProblemsTeachers College, Columbia University, 1906 - 163 strani |
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Stran 21
... Latin Europe even up to the middle of the seventeenth century . The period was one of retrogression in this respect when compared with the time of the early Greeks . But we shall also see that Euclid was not entirely free from this ...
... Latin Europe even up to the middle of the seventeenth century . The period was one of retrogression in this respect when compared with the time of the early Greeks . But we shall also see that Euclid was not entirely free from this ...
Stran 32
... Latin . Another translation was made by Gherardo of Cremona in about 1186 , and in 1260 Johannus Campanus made a copy of Adelard's translation and gave it out as his own . These translations had a stimulating effect on the study of ...
... Latin . Another translation was made by Gherardo of Cremona in about 1186 , and in 1260 Johannus Campanus made a copy of Adelard's translation and gave it out as his own . These translations had a stimulating effect on the study of ...
Stran 41
... Latin Europe from the Arab translations carried into Spain , but the Roman architect Vitruvius Pollio knew of his work , and it is safe to suppose that use was made of it . One might expect that Euclid would have found its way into ...
... Latin Europe from the Arab translations carried into Spain , but the Roman architect Vitruvius Pollio knew of his work , and it is safe to suppose that use was made of it . One might expect that Euclid would have found its way into ...
Stran 44
... Latin Europe by way of Spain . Two other names are associated with the early Christian education of the Middle Ages , those of Cassiodorus ( cir . 480-575 ) and Isidore of Seville ( cir . 570-636 ) . Both of these recognized the order ...
... Latin Europe by way of Spain . Two other names are associated with the early Christian education of the Middle Ages , those of Cassiodorus ( cir . 480-575 ) and Isidore of Seville ( cir . 570-636 ) . Both of these recognized the order ...
Stran 48
... Latin , but Leonardo's work in its general treatment was not at all Euclidean . It must be classed as a practical geometry as its title indicates , although , as Professor Cantor2 points out , the stereometric propositions are drawn ...
... Latin , but Leonardo's work in its general treatment was not at all Euclidean . It must be classed as a practical geometry as its title indicates , although , as Professor Cantor2 points out , the stereometric propositions are drawn ...
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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.