Search

Search Results

• Compositions of dilations and isometries in calculator-based dynamic geometry

  257-266

  Jack A. Carter

  Beverly J. Ferrucci

  Views:

  32

  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.

• The time spent on board games pays off: links between board game playing and competency motivation

  119-131

  András Ferenc Dukán

  Katalin Fried

  Csaba Szabó

  Views:

  143

  The impact playing has on the development of thinking is an important topic of psychology of learning, brain research and mathematics didactics.
  Our research is also connected to the aforementioned topic. We investigated the effects of playing board games on competence motivation and the development of mathematical competencies.
  In this paper, we present the results of an experiment carried out in a secondary school class.
  The experimental group spent one of three weekly mathematics lessons playing board games.
  Apart from the several advantages of playing games in general, we can conclude that, based on the results of the national competence measurement, the mathematical competence of the students developed properly.
  The readiness and the progress of the pupils were compared on the basis of input and output tests and an initial knowledge measurement and, at the same time, we compared their level of mathematical competence with the results of the national competence
  measurement.

  Subject Classification: 97C70, 97D40