Dataset for: Enhancing Combinatorial Reasoning and Pedagogical Transferability through REACT-Based Instruction

This dataset supports the study examining the effects of REACT-based instruction on combinatorial reasoning and pedagogical transferability among pre-service primary teachers. The dataset includes: - Pre-test and post-test scores - Analytic rubric scores across five dimensions (PS1–PS5) - Group assignment (Experimental vs Control) Additional materials include: - R scripts for statistical analysis - Scoring rubric - Codebook and documentation All data have been anonymized.This dataset can be reused for secondary analysis, replication studies, and research on mathematical modelling and pedagogical content knowledge in teacher education.