DSGB leaflets
(and extracts from the magazine)
DSGB Aims & Principles
DSGB Aims (short)
Twelves and Tens"
Professor Aitken
Twelves v. Tens
Base Twelve and the Primes
by Don Hammond
Foresight Contribution
by A.F.Whillock
Educational Comments
In PDF format:
Polygons
gives reasons why base twelve is better than other bases, with reference to polygons
(PDF)
The Case against Decimalisation
by Professor Aitken
(PDF)
Two-Way Notation
by J.Halcro Johnston explains how two-way notation can be used with base twelve
(PDF)
Primes back to front"
explores prime reversals (eg 79 and 97) with Two-Way Notation
(PDF)
prime forms
(different bases and in general)
(PDF)