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| Secondary School Mathematics | 5 |
| Transformations (Mathematics) | 5 |
| Mathematics Education | 4 |
| Deduction | 3 |
| Mathematics | 3 |
| Analytic Geometry | 2 |
| Geometric Concepts | 2 |
| Geometry | 2 |
| Plane Geometry | 2 |
| Curriculum | 1 |
| Generalization | 1 |
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| Mathematics Teaching | 5 |
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| Bell, A. W. | 5 |
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Bell, A. W. – Mathematics Teaching, 1973
Descriptors: Geometry, Mathematics, Mathematics Education, Secondary School Mathematics
Bell, A. W. – Mathematics Teaching, 1972
The third in a series of four articles, this is concerned with establishing the main properties of the general linear transformation of the plane, equations of lines, area, and change of axes. For earlier articles, see MT number 57, Winter 1971, pp. 14-19 and MT number 58, Spring 1972, pp. 49-55. (DT)
Descriptors: Analytic Geometry, Geometry, Mathematics, Mathematics Education
Bell, A. W. – Mathematics Teaching, 1972
Descriptors: Deduction, Geographic Concepts, Instruction, Mathematics Education
Bell, A. W. – Mathematics Teaching, 1971
The first of three articles showing how inductively-obtained results in transformation geometry may be organized into a deductive system. This article discusses two approaches to enlargement (dilatation), one using coordinates and the other using synthetic methods. (MM)
Descriptors: Analytic Geometry, Deduction, Geometric Concepts, Mathematics
Bell, A. W. – Mathematics Teaching, 1974
Descriptors: Curriculum, Deduction, Generalization, Geometric Concepts
