教育构建主义学者认为,教学活动是由教师的讲解指导和学生的学习实践两部分构建而成,并且这两个部分之间相互交集、相互融合、相互推进。教师设置的教学环节,采用的教学手段,都是为了达到促进学习对象更好、更深入、更高效地探知、实践和创新。新课程改革纲要强调学生的主体地位不可动摇,学生的能力培养不可懈怠,学生的实践活动不可忽略。这就要求,新课改下的教师,要 Educational Constructivists believe that the teaching activities are constructed by teachers ’instructions and students’ learning and practice. The two parts are intertwined, integrated and mutually advancing. Teachers set teaching links, teaching methods are used to promote learning objects to better, more in-depth and more efficient to detect, practice and innovation. The outline of the new curriculum reform emphasizes that the dominant position of students can not be shaken, the ability of students must not be slacken, and students’ practical activities can not be neglected. This requires that teachers under the new curriculum reform, want