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 matematica" » "history en matematicas", "history la matematica", "history el matematico", "historia en matematica", "history and matematica", "history of matematica"
"historia de matematico" » "historia de matematica", "historia de matematicas", "historia de mathematica"

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 matematica\") OR (((\"historia de matematico\") OR (\"historia oral mathematics\"))))~".
• Removing quotes may allow a broader search: (( history en matematica ) OR ((( historia de matematico ) OR ( historia oral mathematics ))))~.
• Adding a wildcard symbol may retrieve word variants: (("history en matematica") OR ((("historia de matematico") OR ("historia oral mathematics"))))*.