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Direct linkHyde, Hartley – Australian Mathematics Teacher, 2008
Parabolic shapes are easy to find. Many homes outside the cable area have parabolic antennas to receive television transmissions from a satellite far out in space. Parabolic extrusions are used as reflectors behind fluorescent tubes and solar heated water pipes. Parabolic reflectors are used to build solar ovens, searchlights and radio telescopes.…
Descriptors: Geometry, Geometric Concepts, Teaching Methods, Mathematics Instruction
Brown, Jill – Australian Mathematics Teacher, 2004
Technology is evolving and now some secondary classrooms see students using computer algebra systems (CAS), however, Zbiek (2003) points out that "graphical representations seem to abound in CAS-using classrooms" and "many [research] studies of the use of CAS depend highly on the graphing component of the tool". Kissane (2001) suggests that with…
Descriptors: Mathematics Instruction, Educational Technology, Graphing Calculators, Case Studies
