Karl Menninger (October 6, 1898 – October 2, 1963) was a

German German(s) may refer to: * Germany (of or related to) **Germania (historical use) * Germans, citizens of Germany, people of German ancestry, or native speakers of the German language ** For citizens of Germany, see also German nationality law **Ge ...

teacher of and writer about mathematics. His major work was ''Zahlwort und Ziffer'' (1934,; English trans., ''Number Words and Number Symbols''), about non-academic mathematics in much of the world. (The omission of

Africa Africa is the world's second-largest and second-most populous continent, after Asia in both cases. At about 30.3 million km2 (11.7 million square miles) including adjacent islands, it covers 6% of Earth's total surface area ...

was rectified by

Claudia Zaslavsky Claudia Zaslavsky (January 12, 1917 – January 13, 2006) was an American mathematics teacher and ethnomathematician. Life She was born Claudia Natoma Cohen (later changed to Cogan) on January 12, 1917, in Upper Manhattan in New York City an ...

in her book ''Africa Counts''.)

References

*Dauben, Joseph Warren, and Christoph Scriba, eds. (2002), ''Writing the History of Mathematics'', Birkhäuser, Basel, page 483. *Menninger, Karl (1934), ''Zahlwort und Ziffer''. Revised edition (1958). Göttingen: Vandenhoeck and Ruprecht. *Menninger, Karl (1969), ''Number Words and Number Symbols''. Cambridge, Mass.: The M.I.T. Press. German historians of mathematics Ethnomathematicians 20th-century German mathematicians 1898 births 1963 deaths {{ethnologist-stub