Sharing great ideas and resources with maths teachers around the world
I’ve recently been exploring the story behind the headlines when it comes to the PISA tests. It’s a story that needs telling as it places some pretty large caveats on any interpretation of the international league tables published by PISA. There are many PISA sceptics who cite such arguments as: The tests are only taken by, and percentages quoted about, students in school that day. It ignores the non-attenders who can account for significant proportions of society in many countries.Only approximately 10% of students take the full test. The rest take only part of the test and their answers to the questions they didn’t take are estimated using a Rasch model.