What Is "Typical" for Different Kinds of Data? Examples from the Melbourne Cup

Autor/in	Watson, Jane
Titel	What Is "Typical" for Different Kinds of Data? Examples from the Melbourne Cup
Quelle	In: Australian Mathematics Teacher, 70 (2014) 2, S.33-40 (8 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0045-0685
Schlagwörter	Secondary School Mathematics; Data; National Curriculum; Outcome Measures; Competition; Numeracy; Word Problems (Mathematics); Semantic Differential; Correlation; Classification; Teaching Methods; Foreign Countries; Australia + Suchen Sie Ihr Suchwort? Daten; Wettkampf; Rechenkompetenz; Textaufgabe; Korrelation; Classification system; Klassifikation; Klassifikationssystem; Teaching method; Lehrmethode; Unterrichtsmethode; Ausland; Australien
Abstract	There are five words that are critical to an appreciation of what is "typical" in data sets that students encounter across the middle school years. The first three words--mean, median and mode--are nouns that define measures of typicality in data sets. The next two words--categorical and numerical--are adjectives that describe the types of data sets to which we may wish to apply the measures. The purpose of this article is to present and discuss in a down-to-earth fashion, with authentic data sets, the relationship of the three measures of typicality and the two types of data introduced in the curriculum. Although the mean, median, and mode have been in mathematics text books for many years it is sobering to read in the research literature that teachers' understanding of the measures is little different from that of students and both struggle (Jacobbe & Carvalho, 2011). (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	2022/4/11