• Mapping kindergartners’ quantitative competence 

      Van den Heuvel-Panhuizen, Marja; Elia, Iliada (Peer reviewed; Journal article, 2020)
      In this study we investigated the structure of quantitative competence of kindergartners by testing a hypothesized four-factor model of quantitative competence consisting of the components counting, subitizing, additive ...
    • Supporting primary school students' reasoning about motion graphs through physical experiences 

      Duijzer, Carolien; Van den Heuvel-Panhuizen, Marja; Veldhuis, Michiel; Doorman, Michiel (Peer reviewed; Journal article, 2019)
      Reasoning about graphical representations representing dynamic data (e.g., distance changing over time), including interpreting, creating, changing, combining, and comparing graphs, can be considered a domain-specific ...