Instituto para la
Investigación Educativa
y el Desarrollo Pedagógico

Perhaps you should try some spelling variations:
"history and matematicas" » "history las matematicas", "history de matematicas", "history y matematicas"
"historia and matematicas" » "historia las matematicas", "historia de matematicas", "historia y matematicas", "historia un matematicas", "historia una matematicas", "historia no matematicas"
"historia en matematicas" » "historia de matematicas", "historia las matematicas", "historia del matematicas", "historia y 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 and matematicas\") OR (((\"historia and matematicas\") OR (\"historia en matematicas\"))))~".
• Removing quotes may allow a broader search: (( history and matematicas ) OR ((( historia and matematicas ) OR ( historia en matematicas ))))~.
• Adding a wildcard symbol may retrieve word variants: (("history and matematicas") OR ((("historia and matematicas") OR ("historia en matematicas"))))*.