Instituto para la
Investigación Educativa
y el Desarrollo Pedagógico

Perhaps you should try some spelling variations:
"historia ys matematicas" » "historia las matematicas", "historia de matematicas", "historia en matematicas", "historia es matematicas", "historia mis matematicas", "historia des matematicas"
"historia la matematicas" » "historia las matematicas", "historia la matematica", "historia de matematicas", "historia en matematicas", "historia e matematicas"
"historia y matematicas" » "historia de matematicas", "historia en matematicas", "historia las matematicas"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("historia ys matematicas") OR ((("historia la matematicas") OR ("historia y matematicas"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"historia ys matematicas\") OR (((\"historia la matematicas\") OR (\"historia y matematicas\"))))".
• Removing quotes may allow a broader search: (( historia ys matematicas ) OR ((( historia la matematicas ) OR ( historia y matematicas )))).
• Adding a wildcard symbol may retrieve word variants: (("historia ys matematicas") OR ((("historia la matematicas") OR ("historia y matematicas"))))*.