Instituto para la
Investigación Educativa
y el Desarrollo Pedagógico

Perhaps you should try some spelling variations:
"history en matematicas" » "history de matematicas", "history las matematicas", "historia en matematicas", "history and matematicas", "history of matematicas"
"historia and matematica" » "historia en matematica", "historia la matematica", "historia de matematica", "historia un matematica", "historia una matematica"
"history 1 matematicas" » "history y matematicas", "history 2 matematicas", "history 3 matematicas", "history a matematicas", "history of matematicas"

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 (\"history 1 matematicas\"))) OR (\"historia and matematica\"))~".
• Removing quotes may allow a broader search: (((( history en matematicas ) OR ( history 1 matematicas ))) OR ( historia and matematica ))~.
• Adding a wildcard symbol may retrieve word variants: (((("history en matematicas") OR ("history 1 matematicas"))) OR ("historia and matematica"))*.