Pi Division and Addition

Autor/in	Scott, Paul
Titel	Pi Division and Addition
Quelle	In: Australian Mathematics Teacher, 64 (2008) 2, S.21-23 (3 Seiten) PDF als Volltext (1); PDF als Volltext kostenfreie Datei (2) Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0045-0685
Schlagwörter	Leitfaden; Unterricht; Lehrer; Arithmetic; Numbers; Mathematics Instruction; Equations (Mathematics); Mathematical Concepts; Teaching Methods + Suchen Sie Ihr Suchwort? Lesson concept; Instruction; Unterrichtsentwurf; Unterrichtsprozess; Teacher; Teachers; Lehrerin; Lehrende; Addition; Arithmetik; Arithmetikunterricht; Rechnen; Zahlenraum; Mathematics lessons; Mathematikunterricht; Equations; Mathematics; Gleichungslehre; Teaching method; Lehrmethode; Unterrichtsmethode
Abstract	The number Pi (approximately 3.14159) is defined to be the ratio C/d of the circumference (C) to the diameter (d) of any given circle. In particular, Pi measures the circumference of a circle of diameter d = 1. Historically, the Greek mathematician Archimedes found good approximations for Pi by inscribing and circumscribing many-sided polygons about this circle, and calculating their perimeters. Since Pi stands for an infinite decimal, for practical purposes it is useful to find fractions which have a value close to Pi. In this article, the author presents several examples of Pi division and addition problems. (ERIC).
Anmerkungen	Australian Association of Mathematics Teachers (AAMT). GPO Box 1729, Adelaide 5001, South Australia. Tel: +61-8-8363-0288; Fax: +61-8-8362-9288; e-mail: office@aamt.edu.au; Web site: http://www.aamt.edu.au
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10