
Contact me: email: laurel.langford@uwrf.edu My schedule My office location: 206E NH My office phone number: 7154254360 
Grading policies, etc Syllabus 
Useful Links: 
Weekly topics, assignments, readings, announcements, etc.  Cool extra links and references 
Sept 12: Counting and whole number representations Homework assignment, (quiz on D2L), The Yoruba number system. The article: The Work of Glendon Lean on the Counting Systems of Papua New Guinea and Oceana is in the content section of D2L, and can be requested through the library. 
Mental floss on number systems A collection of cool number systems words A high school level introduction to Babylonian numbers 
Sept 19:
Addition, subtraction, multiplication and maybe
division: Egyptian, Greek, Babylonian (Chinese rod numerals?) Presentation: Egyptian multiplication Extra reading on Babylonian numbers multiplication 

Sept 26:
Fractions: Egyptian, Babylonian, Indian and the
Euclidean algorithm for GCDs Presentation: Euclidean algorithm 

Oct 3:
Solutions to linear equations (and more
complicated linear equations) Presentation: Solution by false position or Brahmagupta's solutions 

Oct 10:
Irrational numbers and geometry Presentation: irrationality of prime square roots 

Oct 17: How Greek geometry influenced the development of logic and mathematics  
Oct 24: Solving quadratic equations Presentation: completing the square visually 

Oct 31 Higher order equationsdegrees 3, 4, and maybe 5 Presentation: simplifying degree 3 polynomials. 

Nov 7  
Nov 14  
Nov 21  
Nov 28  
Dec 5  
Dec 12  