Teaching and learning addition and subtraction bridging through ten using a structural approach

• Autores: Angelika Kullberg, Camilla Björklund, Maria Nord, Tuula Maunula, Ulla Runesson, Irma Brkovic
• Localización: Proceedings of the 45th Conference of the International Group for the Psychology of Mathematics Education / coord. por Ceneida Fernández Verdú, Salvador Llinares Ciscar, Ángel Gutiérrez Rodríguez, Núria Planas i Raig, Vol. 3, 2022 (Research Reports Ja – Se), ISBN 978-84-1302-177-5, págs. 83-90
• Idioma: inglés
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• Resumen

  • An eight-month-long intervention based on the idea of using a structural approach to addition and subtraction, and particularly bridging through ten, was implemented in Swedish Grade 1. A goal was that at the end of Grade 1, students would solve tasks like 15–7= using part-whole relations of numbers. In this paper, we report on learning outcomes from task-based interviews with intervention and control groups before, immediately after and one year after the intervention, to investigate long-term effects and whether students used a structural approach when solving tasks in Grade 2. Results show that students in the intervention group increased their learning outcomes the most and to a larger extent solved tasks in higher number ranges using a structural approach.