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Mustafa, Asif Khan – Mathematics Teacher, 2001
Presents a method for determining the coordinates of the endpoint of a line segment given its slope, point of origin, and length. Applies the notion of similar triangles to quickly solve this type of problem. Includes a calculator program. (KHR)
Descriptors: Analytic Geometry, Geometric Concepts, Graphing Calculators, Instructional Materials

Naraine, Bishnu – Mathematics Teacher, 1993
Explores the concept of extraneous roots in radical equations using an alternative to traditional algebraic methods. Using calculator- or computer-based graphs, accounts for extraneous roots by examining the four possible cases of systems of equations that can produce the solution to the radical equation. (MDH)
Descriptors: Algebra, Analytic Geometry, Computer Assisted Instruction, Computer Oriented Programs

Dick, Thomas P. – School Science and Mathematics, 1992
Explores the role that symbolic-graphical calculators can play in the current calls for reform in the mathematics curriculum. Discusses symbolic calculators and graphing calculators in relation to problem solving, computational skills, and mathematics instruction. (MDH)
Descriptors: Abstract Reasoning, Algebra, Analytic Geometry, Cognitive Processes