Mathematics at the Cross-roads: A Critical Survey of the Teaching of Mathematics ...Maskew Miller, limited, 1942 - 239 sider |
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Side 43
... sides , less four right angles . If the sides of a convex polygon are produced in order , the sum of the exterior angles so formed is equal to four right angles . x If two triangles have two sides of the one equal to two sides of the ...
... sides , less four right angles . If the sides of a convex polygon are produced in order , the sum of the exterior angles so formed is equal to four right angles . x If two triangles have two sides of the one equal to two sides of the ...
Side 44
... side of the one equal to the corresponding side of the other , the triangles are congruent . The angles at the base of an isosceles triangle are equal , and conversely . x If two triangles have three sides of the one equal to three sides ...
... side of the one equal to the corresponding side of the other , the triangles are congruent . The angles at the base of an isosceles triangle are equal , and conversely . x If two triangles have three sides of the one equal to three sides ...
Side 49
... sides together with twice the rect- angle contained by one of those sides and the projection on it of the other side . In any triangle , the square on the side subtending an acute angle is equal to the sum of the squares on the other two ...
... sides together with twice the rect- angle contained by one of those sides and the projection on it of the other side . In any triangle , the square on the side subtending an acute angle is equal to the sum of the squares on the other two ...
Innhold
Chapter | 1 |
THE UNION OF SOUTH AFRICA ITS EDUCATIONAL | 10 |
Stranglehold of Examinations and Domination by Univer | 22 |
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African secondary schools Afrikaans algebra and geometry applied arithmetic Bulletin of Educational calculus Cape Department Cape Province circle commercial arithmetic compulsory concept Council of Teachers curriculum deductive Department of Education Educational Statistics England English equal equations Euclid example exercises experimental factors formal geometry formal proofs formula fractions function graphs High School Ibid informal geometry interests intuitive Joint Matriculation Board Junior Certificate examination large number logarithms Malherbe manipulation mathe Mathematical Association Mathematics in Secondary mathematics syllabus Mathematics Teacher matics matriculation examination methods millimetres National Council Orange Free parallelogram Percentage of Pupils practical present primary school problems propositions Refer reorganization Report Secondary Education Senior Certificate course sides solid geometry South Africa South African schools South African secondary stage Standards VII straight line taught Teaching of Geometry teaching of mathematics technical textbooks theorems thinking Transvaal triangle trigonometry Union of South vocational Yearbook