00444nam a2200133Ia 4500008004100000100002100041245013200062245002100194260000900215300001700224440003200241500001100273650002600284170725s9999    xx            000 0 und d  aWESTENSKOW, ARLA 3aAn iceberg model for improving Mathematical understanding and mindset or disposition: an individual summer intervention program  cWESTENSKOW, ARLA  c2017  apages 42745,  aJournal of Educationv197:1  aCJ0037  aMathematics Education