Instituto para la
Investigación Educativa
y el Desarrollo Pedagógico

Perhaps you should try some spelling variations:
"history de matematicas" » "history las matematicas", "history dde matematicas", "history den matematicas", "history dy matematicas", "historia de matematicas", "history of matematicas", "historia del matematicas"
"history a matematicas" » "history la matematicas", "history y matematicas", "history 1 matematicas", "history and matematicas", "history of matematicas"
"historia e matematica" » "historia de matematica", "historia en matematica", "historia y 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 de matematicas\") OR (\"historia e matematica\"))) OR (\"history a matematicas\"))~".
• Removing quotes may allow a broader search: (((( history de matematicas ) OR ( historia e matematica ))) OR ( history a matematicas ))~.
• Adding a wildcard symbol may retrieve word variants: (((("history de matematicas") OR ("historia e matematica"))) OR ("history a matematicas"))*.