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Catranides, Peter – Mathematics Teacher, 1978
A mathematical derivation is given, developing the cardioid as an epicycloid locus. Curve-stitched designs are given for a family of epicycloids. (MP)
Descriptors: Analytic Geometry, Geometry, Graphs, Instruction
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Germain-McCarthy, Yvelyne – Mathematics Teacher, 1995
Presents a strategy for graphing conic sections on the polar plane without using a table of values by beginning with information gained from the graphs of circular functions. (MKR)
Descriptors: Algebra, Analytic Geometry, Calculus, Graphs
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Disher, Fan – Mathematics Teacher, 1995
Presents an activity in which students draw a picture, analyze each line and curve, and write the symbolic equations represented by the graph. Includes reproducible student worksheets. (MKR)
Descriptors: Algebra, Analytic Geometry, Art, Equations (Mathematics)
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Friedlander, Alex; Dreyfus, Tommy – Mathematics Teacher, 1991
Presented are activities concerning the method of graphing the equation y=kx in the Cartesian and other coordinate systems. Students progress from the graph of a straight line to the investigation of conceptually related geometric loci in non-Cartesian coordinate systems. (MDH)
Descriptors: Analytic Geometry, Geometric Concepts, Graphs, Learning Activities