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"
"historia el matematico" » "historia en matematicas", "historia la matematica", "historia del matematico", "historia en matematico", "historia e matematico"
"history e matematica" » "history de matematica", "history en matematica", "history y matematica", "history a matematica", "historia e matematica", "history of matematica"

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