As actividades de investigação proporcionam aos alunos uma experiência viva e gratificante – levando-os a aprender processos como generalizar, considerar casos particulares, simbolizar, comunicar, analisar, explorar, conjecturar e provar. Investigação anterior, embora escassa, mostra as suas potencialidades mas t6ambém os seus problemas, resultantes dos alunos manifestarem, frequentemente, concepções incorrecta...
This paper presents some work developed through a collaborative project involving mathematics teachers and teacher educators, aimed at the development of classroom tasks involving students in mathematical investigations and the study of related teaching styles. We give a general overview of the project and present one task dealing with the concepts of powers and exponents. Then, we describe how it was used in t...
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