In-service Italian primary mathematics teachers' knowledge and beliefs about possible students' mistakes in mathematics large-scale tests

This paper presents part of a larger research that is still under development. We discuss some results of a questionnaire administered to a sample of in-service Italian primary teachers. We show teachers responses about student answers in large-scale tests administered for Italian national assessments. The data collected show some aspects of teacher pedagogical content knowledge and beliefs. The analysis carried out in our study can become the starting point to design teacher educational program in which data from large-scale tests are used to reflect on student possible difficulties and mistakes.