Second,? An analysis of the current learning situation of solving practical problems among second-year students;

In the second grade, I assigned a slightly complicated one-step application problem and a general two-step application problem. The third book, first of all, combines the meaning of division, divides a number into several parts, finds out how much a number is, how many other numbers a number contains, and then there are application questions to find out how many times a number is another number and how many times a number is. On the basis of students mastering some simple application problems, practicing "asking questions" and "filling conditions" and learning two consecutive application problems, by changing a known condition of one-step application problem and introducing two-step application problems, two-step application problems of addition and subtraction (multiplication, addition and subtraction), two-step application problems of continuous subtraction and two-step application problems of addition and subtraction appear according to the internal relationship of the number of application problems. In the fourth volume, there is a slightly complicated one-step application problem (which requires reverse thinking), mainly to find an application problem with more (less) numbers than a number and to find this number by knowing how many times a number is; Then on the basis of the third volume, some easy two-step application problems with three known conditions continue to appear, and some two-step application problems with two known conditions appear appropriately.