**Local/Global Knowledge Systems: four categories**

1) Science and Technology in "The West" (professional mainstream)

2) Science and Technology in non-western state societies (“ancient empire
civilizations")

3) Vernacular science and technology (“street smarts,” “just plain folks”)

4) Indigenous science and technology (band and tribe societies)

Examples from social studies of
mathematics:

1) Bloor's analysis of social choice in Euler's theorem of polyhedra

2) Needham shows how the Chinese Chu Shih-chieh
triangle can be mapped onto Pascal’s triangle by a rotation of ninety
degrees.

3) Jean Lave's __Situated Cognition:__ knitting as algorithm

4) Marcia Ascher on symmetry in Maori art