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10以内数的分与合是学生学习10以内加、减法的基础。苏教版教材将10以内数的分与合这部分内容单独列为一个单元。学生在学习10的分与合之前,已经学习过2~9的分与合。在之前的学习中,学生积累了一定的把一些物体分成两部分的操作经验,能根据每种分法想到“对称”的表达方式,并能由“分”联想到“合”。同时,学生在之前的学习中,还初步学会了有序地进行操作和记录。这一内容的教
Less than 10 points and points together is the basis of student learning plus 10, subtraction. Su teach version of textbooks will be less than 10 points in the sum of this part of the content as a separate unit. Students in the study before the points and points 10, have been studying 2 to 9 points and together. In previous studies, students accumulated a certain amount of operational experience of dividing some objects into two parts. According to each sub-method, they came up with the expression of “symmetry” and could associate “” with “” ". At the same time, the students learned the orderly operation and record in the previous study. Teach this content