Fusing Role Assignment into the Reform and Practice of Metal Tensile Experimental Teaching
In order to improve the quality,breadth and depth of the experimental teaching in mechanical properties of materials and give full play to students'classroom initiative,role assignment factors are integrated into the teaching mode,which guides students to reflect on and experience their own role practice through role cognition.Taking the metal tensile experiment as the pilot project,three variables of specimen material,specimen state and experimental rate are considered to set up the experimental correlation groups,and multi-threaded comparative experiments are realized by assigning values to group and individual roles.Role implementation is carried out through the whole process of teaching reform by controlling three parts of the process:before class,classroom and after class.The experimental result finds that the data of correlation groups have similarities and differences and have certain patterns,different experimental conclusions can be summarized within correlation groups.Classroom practice finds that after the reform,students pay more attention to the performance of personal value,the experimental classroom effect improves obviously,the experimental report reflects independent thinking and personal characteristics,the teaching evaluation system is more specific and complete,the degree of achievement of cultivation objectives of each evaluation module is greater than 0.78,and the average degree of achievement of the objectives is 0.828.
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