The term ethno describes "all of the ingredients that make up the cultural identity of a group: language, codes, values, jargon, beliefs, food and dress, habits, and physical traits." Mathematics expresses a "broad view of mathematics which includes ciphering, arithmetic, classifying, ordering, inferring, and modeling.
 

D’Ambrosio, U. (2001, February). "What is Ethnomathematics,and how can it help Children in Schools?" In: Teaching Children Mathematics. Reston, VA: National Council of Teachers of Mathematics. 7(6), p. 308-310.