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 de matematicas" » "historia las matematicas"
"historia el matematico" » "historia en matematicas", "historia la matematica", "historia del matematico", "historia en matematico", "historia e matematico"

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