SellSTEM_ESR14_02

This dataset accompanies the published paper Professional Development for Primary School Teachers Intended to Promote Students’ Spatial Ability. It includes data from group discussions, classroom observations, pre-questionnaires, and pre- and post-test results of students. The dataset provides a comprehensive view of the professional development process, teacher reflections, classroom practices, and the measured impact on students’ spatial abilities, supporting the findings of the study.