Instituto para la
Investigación Educativa
y el Desarrollo Pedagógico

Perhaps you should try some spelling variations:
"historia oral mathematics" » "historia of mathematics", "historia rural matematicas", "historia in mathematics", "historia del mathematics"
"history en matematicas" » "history de matematicas", "history las matematicas", "historia en matematicas", "history and matematicas", "history of matematicas"
"historia el matematico" » "historia la matematica", "historia del matematico", "historia en matematico", "historia e matematico"

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"history en matematicas\") OR (((\"historia el matematico\") OR (\"historia oral mathematics\"))))~".
• Removing quotes may allow a broader search: (( history en matematicas ) OR ((( historia el matematico ) OR ( historia oral mathematics ))))~.
• Adding a wildcard symbol may retrieve word variants: (("history en matematicas") OR ((("historia el matematico") OR ("historia oral mathematics"))))*.