https://tidsskrift.dk/NOMAD <p><strong>NOMAD, Nordic Studies in Mathematics Education, Nordisk Matematikkdidaktikk</strong></p> <p>The journal <em>Nordic Studies in Mathematics Education</em> – Nordisk Matematikkdidaktikk, NOMAD – is a journal publishing results from research in mathematics education. It addresses all that are interested in following the progress in this field in the Nordic and Baltic countries, Denmark, Estonia, Finland, Iceland, Latvia, Lithuania, Norway and Sweden.</p> <p>NOMAD publishes issues quarterly.</p> NCM, University of Gothenburg en-US NOMAD Nordic Studies in Mathematics Education 1104-2176 https://tidsskrift.dk/NOMAD/article/view/156622 <p class="p1">The experience of part-whole relations has been identified as being of importance <span class="s1">for the development of proficient counting strategies. In an intervention in first </span><span class="s1">grade (seven-year-olds), one activity was about partitioning numbers in different </span>ways using finger patterns. We analyzed the enactment of the activity using variation theory as a theoretical framework, and identified critical aspects for students’ learning: to differentiate between finger pattern and finger number, to differentiate <span class="s1">between parts and fingers, to make parts bigger than 1, to experience commutativity, </span>and to see zero as one part. The findings provide new knowledge about what needs to be discerned by students in order to be able to partition numbers up to 10, using finger patterns for illustrating part-whole relations.</p> Angelika Kullberg Maria Nord Copyright (c) 2025 Angelika Kullberg, Maria Nord https://creativecommons.org/licenses/by-nc-sa/4.0 2025-04-09 2025-04-09 30 2 10.7146/nomad.v30i2.156622