Only descriptive assessments and feedback are used, depending on how student assessment is described in the school curriculum or municipal education plan. Finnish schools accept that there may be some limitations on comparability when teachers do all the grading of students. But the fact that primary school is, to a large extent, free from standardised testing enables teachers to use creative teaching methods and pupils to concentrate on learning and sustaining their natural curiosity. The national PISA report concludes that only 7% of 15-year-old Finnish students said they feel anxious when working on mathematics tasks at home compared to 52% in Japan (Kupari & Valijarvi, 2005).