| As the theory of external educational assessment and assessment system are introduced into and traditional assessment activity's disadvantages are discovered, the idea of traditional assessment and methods has already gradually quit the stage. On the base of development of times and curriculum, the idea of developmental assessment should hasten successful steps of basal-educational innovation. Performance assessment(thereinafter for short "PA") derives from term opposite to standard test whose central is multiple choice. PA is a quality assessment method in order to assess students' potential and achievement generally, factually. It emphasizes particularly on assessing advanced ideation and ability to solve actual problem through prior knowledge; It emphasizes assessment as feedback. So the exploiture of primary mathematics PA will not only help to shape and improve students' mathematical attainment, teachers' ability and habit of critically reflect their teaching, but also help to exert prompting and oriented function.The dissertation adopts the method of action research, evolves research on the base of study and integration external PA's modes and methods, principia and application. This action research lasts over half a year. During this collaborative action research, we used such methods as observation, interview, writing diary and participating in teachers discussing, etc., to communicate, inspire and promote each other, we finally frame the mode and methods of primary mathematics PA, construct some PA tasks and corresponding criterion, and make use of PA in practice.We find countermeasure to solve the problem, sum up valid strategy and expand the variety of teaching and learning in the process of exploiture of primary mathematics PA. This provide the operationally guide and practical evidence for further research.Valid exploiture of primary mathematics PA will perfect the idea of developmental assessment and provide guarantee of implementing basal-educational innovation successfully. |