id: 06265741
dt: j
an: 2014b.00580
au: Edwards, Michael Todd
ti: Visualizing transformations: matrices, handheld graphing calculators, and
computer algebra systems.
so: Math. Teach. (Reston) 96, No. 1, 48-56 (2003).
py: 2003
pu: National Council of Teachers of Mathematics (NCTM), Reston, VA
la: EN
cc: H60 U70 R20
ut: 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
ci:
li:
ab: Summary: The article presents some ways in which teachers and students can
use CAS-equipped 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.
rv: