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ERIC Number: EJ868148
Record Type: Journal
Publication Date: 2009-Nov
Pages: 2
Abstractor: ERIC
Reference Count: N/A
ISSN: ISSN-0025-5785
The Power of Two
Kathota, Vinay
Mathematics Teaching, n216 p44-45 Nov 2009
"The power of two" is a Royal Institution (Ri) mathematics "master-class". It is a two-and-a half-hour interactive learning session, which, with varying degree of coverage and depth, has been run with students from Year 5 to Year 11, and for teachers. The master class focuses on an historical episode--the Josephus Problem--given a circle of "n" people where every alternate living person is killed in succession, where should one stand in order to be the last person alive, the survivor? Working in groups, through a mixture of pattern-recognition and problem solving, the challenge is accessible and provides an informal introduction to number systems, in particular, place value, binary representation, and the notion and importance of proof. This article is based on the experience of Jan Chodurek, who adapted the master-class to meet the needs of learners at Finchley Catholic High School.
Association of Teachers of Mathematics. Unit 7 Prime Industrial Park, Shaftesbury Street, Derby, DE23 8YB, UK. Tel: +44-1332-346599; e-mail:; Web site:
Publication Type: Journal Articles; Reports - Descriptive
Education Level: Grade 8
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers - Location: United Kingdom