《小学数学课程标准》指出:“动手实践、自主探索与合作交流是学生学习数学的重要方式。数学学习活动应当是一个生动活泼的、主动的和富有个性的过程。”“合作学习”不仅改善了课堂内的学习气氛,而且大面积地提高了教学质量,同时对学生的认知发展也起到了促进作用。许多教师在课堂教学中大胆尝试,运用小组合作学习的方式改变单一乏味的教学手段,从而实现学习方式的多样化,建立自主、合作、探索等学习机制以提高教学质 The standard of primary mathematics curriculum states: “Practicing, exploring and cooperating independently is an important way for students to learn mathematics, and mathematics learning activity should be a lively, active and individualized process.” "Not only improves the learning atmosphere in the classroom, but also greatly improves the quality of teaching, at the same time, it also plays a role in promoting the students’ cognitive development. Many teachers make a bold attempt in class teaching and change the single tedious teaching method by means of group cooperative learning so as to diversify their learning styles and establish learning mechanisms such as autonomy, cooperation and exploration so as to improve teaching quality