Dataset on a mathematics teacher education session about rational numbers

This record contains anonymized transcripts from a group mathematics teacher education session. The dataset consists of transcripts derived from audio-recorded whole-group discussions involving preservice teachers in a teacher education course. The materials were anonymized and translated into English prior to deposit. Files are deposited under restricted access because they derive from a small-group educational setting, and their disclosure could compromise participant confidentiality. Access may be granted for research purposes upon reasonable request, subject to any applicable institutional and ethical requirements.