Search Results - Päivi Perkkilä

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    Mastery of the Concept of Percentage and Its Representations in Finnish Comprehensive School Grades 7-9 by Jorma Joutsenlahti, Päivi Perkkilä

    Published 2024
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    Adult Pre-Service Teachers Applying 21st Century Skills in the Practice by Päivi Valli, Päivi Perkkilä, Raine Valli

    Published 2014
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