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)