years. The intervention includes students aged 7-9 and consists of pulling students from their regular mathematics classes … into small, homogenous groups for mathematics instruction for 3 to 4 hours per week, for two periods of 4-6 weeks per … school year. All students, not only struggling students, are pulled out. We find that students in treatment schools increased …

years. The intervention includes students aged 7-9 and consists of pulling students from their regular mathematics classes … into small, homogenous groups for mathematics instruction for 3 to 4 hours per week, for two periods of 4-6 weeks per … school year. All students, not only struggling students, are pulled out. We find that students in treatment schools increased …

This first volume of PISA 2012 results summarises the performance of students in PISA 2012. It describes how … performance is defined, measured and reported, and then provides results from the assessment, showing what students are able to do … in mathematics. After a summary of mathematics performance, it examines the ways in which this performance varies on …