Fraction ball: Playful and physically active fraction and decimal learning.

Fraction and decimal number learning are notoriously difficult for elementary-aged students. Fraction Ball represents a new way to engage children in fraction and decimal number learning that is playful, engaging, embodied, physically active, and rooted in cognitive science research. In our work, we provide evidence for the efficacy of Fraction Ball in promoting rational number learning through a rigorous experimental design. We also demonstrate ways in which the schoolyard is conducive to play-based interventions that can supplement classroom instruction to truly integrate learning across academic domains using an engaging and evidence-based approach. Importantly, this study serves as a model for how interventionists can engage educators as partners in intervention design and iterative implementation to improve learning outcomes for students and create useful educational innovations for teachers. Fraction Ball is affordable, easy to disseminate, and has the potential to promote rational number learning on a global scale.