2019-05-212019-05-212019-02-14http://hdl.handle.net/123456789/11235engUrheberrechtlich geschützthttps://rightsstatements.org/page/InC/1.0/interleaved practicecomparisonsubtraction strategiesmathematicselementary schoolstrategy-specific adaptivityflexibility370Interleaved Learning in Elementary School Mathematics: Effects on the Flexible and Adaptive Use of Subtraction StrategiesAufsatz