Szerző szerinti böngészés "Ferrucci, Beverly J."
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Tétel Szabadon hozzáférhető Compositions of dilations and isometries in calculator-based dynamic geometry(2008-12-01) Carter, Jack A.; Ferrucci, Beverly J.In an exploratory study pre-service elementary school teachers constructed dilations and isometries for figures drawn and transformed using dynamic geometry on calculators. Observational and self assessments of the constructed images showed that the future teachers developed high levels of confidence in their abilities to construct compositions of the geometric transformations. Scores on follow-up assessment items indicated that the prospective teachers' levels of expertise corresponded to their levels of confidence. Conclusions indicated that dynamic geometry on the calculator was an appropriate technology, but one that required careful planning, to develop these future teachers' expertise with the compositions.