Perspectives on the Teaching of Geometry for the 21st Century

Geometry seems to have lost much of its former central position in mathematics teaching in most countries. However, new trends have begun to counteract this tendency. There is an increasing awareness that geometry plays a key role in mathematics and learning mathematics. Although geometry has been eclipsed in the mathematics curriculum, research in geometry has blossomed as new ideas have arisen from inside mathematics and other disciplines, including computer science. Due to reassessment of the role of geometry, mathematics educators and mathematicians face new challenges. In this ICMI study, the whole spectrum of the teaching and learning of geometry is analyzed. Contributors from all over the world took part in the study, which was conducted on the basis of recent international research, case studies, and reports on actual school practice. This book should be of interest to mathematics educators and mathematicians who are involved in the teaching of geometry at all educational levels, as well as to researchers in mathematics education.