In fact, if the calculation habit is not cultivated well, there will be calculation errors in mathematics learning, which is carelessness. Common things like jumping. For example, in areas with high calculation errors, such as shifting items, dividing points, changing symbols, etc., many students just operate by feeling, omitting necessary steps, and the probability of making mistakes is greatly increased. In fact, your ability is not enough to omit these steps. Students who love miscalculation can observe, do you often have incomplete steps? Or is the writing in the process of solving problems messy? For students who write regularly, your calculation error is less.
The killer who leads to careless loss of points in mathematics learning: unclear examination of questions
In mathematics learning, if the exam questions are unclear, it will also lead to carelessness and loss of points. Students often feel annoyed: "Well, I read the question wrong." This is mainly caused by poor reading habits. It should be noted that people who read fast are not easy to be unclear about the topic. There are also many students who can read the questions clearly, and there must be students who can't read the conditions clearly. So it's not that you can solve this problem slowly.
Of course, there are still some mistakes because I have done similar topics before, and I take it for granted that the condition of the topic should be "like that"; The other part is that there is no effective condition for the topic, especially the topic with more words. I forgot the conditions I saw in front of me, and I have no impression at all. These two points are essentially caused by the inability to concentrate.
Killer who leads to careless loss of points in mathematics learning: confused by traps
In mathematics learning, it is also common to be confused by traps and easily fall into the "trap" of mathematics. For example, some topics need to be discussed in categories. You know that they need to be discussed in categories afterwards, but you can't remember them during the exam. In fact, this has something to do with thinking habits. Some people will reflect when they finish a problem. Why is this question so simple? Is there anything you haven't considered? Check it again, and if you find anything that has not been considered, correct it immediately. Others are nervous, and when they are done, they will pass, and they have no vigilance at all. The latter is often more likely to fall into the trap.
The killer weapon that leads to careless loss of points in mathematics learning: the concept is not firmly grasped
If you ask the teacher: Is it related to carelessness that the concept is not firmly grasped? Is this still a type? Let's see: the basic concept is not well grasped, and the word that appears most frequently in my mind when doing the problem is "seems to be right" For example, trigonometric function, how much is sin60? "It seems to be half ..." After a few "seems", the high score will basically say goodbye to you. After the exam, he didn't agree: "Well, I know this, don't I ...? "I believe I won't be wrong next time. "In fact, you will continue to make mistakes next time, because you haven't fully mastered this knowledge point, and it's not a matter of carelessness at all.