
06265741
j
2014b.00580
Edwards, Michael Todd
Visualizing transformations: matrices, handheld graphing calculators, and computer algebra systems.
Math. Teach. (Reston) 96, No. 1, 4856 (2003).
2003
National Council of Teachers of Mathematics (NCTM), Reston, VA
EN
H60
U70
R20
matrices as graphical objects
matrices as algebraic objects
approach
multiple perspectives
geometric perspective
modes of representation
graphics calculators
algebraic exploration
matrix multiplication
transformation geometry
matrix plotter program
reflections over axes
rotation matrices
points along the unit circle
isometries
determinants
area
computer algebra
hypothesis generation and testing
visualization
Summary: The article presents some ways in which teachers and students can use CASequipped graphing calculators to examine matrices as both graphical and geometric objects. CAS enables students to extend their knowledge of transformations in an active, exploratory fashion.