To Be Presented in the 11th Asian Technology Conference in Mathematics
December 12-16, 2006, Hong Kong SAR, China
Products of Geometric Transformations: Developing Expertise by Using the TI-84・s Cabri Jr.
Mathematics & Computer Science
California State University
Motivated by the pioneering work of Dr. J.-J. Dahan
(ATCM 2005), the present study explored how pre-service teachers constructed
their understanding of isometries and dilations with figures that were
drawn and transformed using Cabri Jr. In Part 1 of the study, the students
constructed images using a single transformation, either a reflection,
rotation, translation, or dilation. In Part 2, students used the technology
to make images that were the result of one or more of the isometries followed
by a size transformation.
|close window||Electronic Proceedings of ATCM||
© ATCM, Inc. 2006