What should I do if my child doesn t understand the teacher s lecture? Junior high school students

If the child does not understand, you can let the child do a preview in advance, and have a general understanding of the content that the teacher will talk about the next day, listen carefully in class if you don't understand and understand, and then find the teacher to explain in time after class, and try to digest the content of the day on the same day, so that you can understand the new content when you learn it, and you like it if you like it, and you will understand it better, so a virtuous circle will get better and better.

Is it because the child can't understand the teacher's lecture because the child can't understand it? Then find a tutor to do a good job, and then seize the time to tutor. Strive to keep up with this course.

I didn't understand it at first. If left unchecked, it will get worse and worse in the future. If you really can't do it, you can hurry up and make up for him again, and then it's okay to stay one level more.

In short, don't delay, don't delay your child's learning. Learning must be understood before it can be continued. Otherwise, it will delay the child by mixing up the time.

A few suggestions for you:

1.Let's figure out what the problem is. Is it because the teacher is not clear? Or did he desert himself? You can ask the teacher, ask himself, investigate a little bit, and prescribe the right medicine.

2.He said he didn't understand, what do you want to ask if you don't understand? The first most important thing is to "dare to ask", develop the habit that I don't know how I will ask, you can ask the teacher to ask your classmates, don't dare to ask, in fact, there are a lot of questions The second must let him learn to "ask", "will ask questions" is also very important, and it is very important to study in the future.

Want to let him know the crux of the matter? You can teach him, if you can't teach him, you can find a teacher with a clear mind to tutor him, and sometimes even online classes are very good, and you don't have to spend money on tutoring at all.

Lay the foundation first, first take the time to understand the basic knowledge in the textbook after class, if you don't understand any knowledge points, ask teachers or classmates, and start to do questions after the knowledge points are clear, from easy to difficult.

As a retired teacher with more than 40 years of teaching experience (and a few years after retirement), I know this problem as a headache for teachers, parents and hard-working students. And in the process of my dedication to teaching reform, I have been working hard to solve this problem.

Today, I would like to share my superficial views on the reasons for this issue.

My personal understanding is that the students who ask questions are those who are willing to learn, who are willing to listen, but who can't. Because students who don't want to listen at all and don't listen don't care if they can.

Discharge cooling is another type of convection cooling. Unlike regenerative cooling, the coolant used for exhaust cooling absorbs heat to the thrust chamber and is discharged out of the combustion chamber instead of entering the combustion chamber to participate in combustion. Direct drain coolant reduces the thrust chamber specific impulse, so the coolant flow for drain cooling needs to be minimized while only using drain cooling at the outlet section of the nozzle that is relatively less heated.

There is also radiative cooling, in which the heat flow is transferred from the combustion products to the thrust chamber, and then the heat is radiated by the thrust chamber wall to the surrounding space. Radiative cooling is characterized by simplicity and small structural mass. It is mainly used in the extension section of large nozzles and the thrust chamber of small thrust engines using high-temperature resistant materials.

When cooling in the thrust chamber of the tissue, a relatively low temperature liquid or gas protective layer is established on the surface of the thrust chamber wall to reduce the heat flow to the thrust chamber wall, reduce the wall temperature, and achieve cooling. Internal cooling is mainly divided into three methods: internal cooling (shield cooling), membrane cooling and diaphoretic cooling of head tissues. After the internal cooling measures are adopted in the thrust chamber, the mixing ratio near the wall of the combustion chamber is different from the optimal mixing ratio in the central area (in most cases, the near-wall layer rich in fuel is used) due to the need to reduce the temperature of the protective layer, resulting in the uneven distribution of the mixing ratio along the cross-section of the combustion chamber, so that the combustion efficiency is reduced to a certain extent.

Membrane cooling is similar to shield cooling in that it cools the thrust chamber wall by establishing a uniform and stable coolant film or air film protective layer near the inner wall surface, except that the coolant used to establish the protective layer is not injected by the injector, but is supplied through a special cooling belt. The cooling band is generally arranged in a cross-section of the combustion chamber or the convergence section of the nozzle. There can be several cooling bands along the length of the combustion chamber.

In order to improve the stability of the membrane, the coolant often flows through the gaps or small holes in the cooling belts, and when sweating is used, the thrust chamber wall or part of the inner wall is made of porous material with a pore diameter of tens of microns. Porous materials are usually sintered with metal powders or pressed with metal mesh. In this case, the number of pores per unit area is increased by making the micropores in the material as evenly distributed as possible.

The liquid coolant penetrates into the inner wall, creating a protective film that reduces the density of the heat transferred to the wall. When the flow rate of liquid coolant used for sweat cooling is above a certain threshold, a liquid film is formed near the wall of the thrust chamber. When the coolant flow rate is below the critical flow, the inner wall temperature will be higher than the coolant boiling point at the current pressure, and some or all of the coolant will evaporate, forming an air film.

In addition to the above thermal protection, there are other thermal protection methods such as: ablation cooling, thermal insulation cooling, hot melt cooling and composite protection of chamber walls. 3. Thermal protection scheme of high enthalpy gas generator Based on the above methods and the actual situation, the thermal protection method of high enthalpy gas generator is obtained.

The combustion chamber of a high-enthalpy gas generator differs from that of a liquid rocket engine, eliminating the front thrust chamber part, making its structure simpler and more effective. Then, the thermal protection involved is the thermal protection part of the combustion chamber wall. As the fuel enters the combustion chamber, it quickly decomposes and releases large quantities.

It is normal for children in the first grade to have difficulty adapting to formal education because they have just begun to contact them, and some children are relatively weak in terms of foundation because they have not been exposed to preschool education, and some even have no foundation, so they will not understand the teacher's lecture in class. The efficiency of listening to the class will directly affect the child's academic performance, the reason for not understanding the class is analyzed, and then the right medicine, first guide the child to record the points that they do not understand, let them ask classmates and teachers, if they can't judge what they can't, parents need to test the knowledge points learned that day. <>

Some children do not understand this lesson, because the content of the previous lesson has not been fully understood, and a new learning content must be based on the previous content of learning, otherwise there will be new knowledge can not be understood, at this time parents must help their children to check and fill in the gaps, to prevent the long-term past, there is a situation that can not keep up at all, if the content of the day is not fully understood, you need to teach the child in school to consult with the teacher in time, In this way, it will help to improve learning efficiency and promote children to develop a good habit of asking questions if they don't understand. <>

There are many students in a class, and the teacher has no way to take care of each student's feelings in the process of lecturing. And you need to accompany the child to preview before class, mark out some important and difficult points, in the process of class the next day, in order to effectively grasp the key points to learn, but also to keep up with the teacher's rhythm, back home, parents can do some exercises according to the knowledge he learned that day, to guide him to think correctly. <>

First-grade primary school students do not have their own complete set of learning methods, which requires parents to do a good job of cloud guidance in a timely manner, usually pay more attention to accompany their children, communicate with them more, and encounter some knowledge points that they do not understand, but also supplement them in time, and can not pin all their hopes on the teacher, after all, the child is his own.

I think teachers can change their teaching strategies in a timely manner, try to make it as simple as possible, and give more guidance to children after class, parents should assist their children more, and guide children to ask more classmates and teachers if they don't understand.

You can let your child preview before class, then listen to the lecture in class, review it in time after class, and ask the teacher in time if you don't understand the problem, so that the child can take good notes and deal with it easily.

Then teachers can solve some of their children's problems outside of class, and parents should also spend more time helping their children's homework, so that children will have better learning ability.

It is very bad behavior for children not to pay attention in class, which will also make many teachers angry. Therefore, the teacher should also take the corresponding method, so that the child can have a better concentration. Many children do not pay attention to the lectures in class, which is also because the teacher's discipline method is wrong.

Therefore, teachers should also learn to pay good attention and hope that teachers can pay attention to these issues. Everyone also thinks that children do not pay attention in class because they are not paying attention, and teachers should also change their education methods at this time.

I hope that teachers can also let children participate more in the class in the classroom, and should also actively let children ask questions. In this way, the child's interest can be aroused, and the child's behavior of not paying attention to the lecture can be avoided. Everyone also thinks that children who do not pay attention to the lectures will have a great impact on themselves, which will also affect their test scores.

Therefore, teachers also need to pay attention to this issue, and hope that teachers can formulate relevant teaching plans. Many teachers also choose to actively participate students in the class, and will also encourage students to a certain extent. This will also allow students to have a good class atmosphere and better integrate students into the classroom.

Therefore, teachers also need to pay special attention, because a good classroom atmosphere is more important. In this way, the child can have a better performance, and the child can better listen to the lecture. I hope that every teacher can also pay attention to this aspect of things, which is also a great benefit to children.

Everyone also thinks that it is more important to listen carefully in class, so that children can have a better learning.

Therefore, teachers also need to pay attention to this aspect of the situation, and hope that teachers can let children have more problems. This will also allow the child to scramble to raise his hand and allow the child to better participate in the class. If the child has positive questions, then the teacher also needs to praise and encourage the student, which can also cultivate the child's self-confidence.

I think the teacher can only remind them at this time, and after class, they can properly communicate with the children about this aspect and slowly guide them to the right path.

The teacher must remind the children, but do not educate the children through violence, but enrich the teaching content, teaching links, and make the teaching process more interesting.

In such a situation, the teacher should actively guide the child, should remind the child, and should also communicate with the child after class to understand the child's real thoughts, and then should also change the child's state to improve the child's concentration.

The teacher should remind the child in a timely manner, add more questions to the child, and improve the child's attention.

When the child does not pay attention in class, the teacher can ask the child questions, and can remind the child to let the child listen carefully.

What should I do if my child can't concentrate in class?

First of all, it is necessary to train them in their study habits at home, try to maintain their attention when studying, and correct the habit of leaving their seats at every turn while studying and playing. To train the child to maintain attention, first observe the child's retention time, for example, the attention can be maintained for five minutes, when doing homework with him at home, after he starts to wander in five minutes, encourage him to maintain it for ten minutes, if he can maintain it for ten minutes, reward him, praise him, and fix the child's habits and ability to maintain attention through repeated praise.

When you arrive at school, try to help your child arrange classes or lessons that make it easy for him to maintain his attention. Children with more distracted attention will be able to maintain their attention for a longer period of time in classes where they are more active and the teacher is more lively. We can consult with the school and try to coordinate so that it will be better for the child to go to school in that class.

If the teacher is walking around the lesson, it will be easier for the child to maintain attention. If you can communicate with the teacher, let the teacher walk to the child's side from time to time, pat him or ask questions, praise him whether it is right or wrong, and then let him sit down, and his attention can return to learning and class, it can be maintained for a longer time. In addition, you can negotiate with your table mates to help remind students when they notice that they are distracted, so that they can immediately focus on their studies and return to studying.

You can also negotiate with the teacher so that the child can sit as close to the teacher as possible, feel that the teacher's control is stronger, and the attention retention time will be relatively longer. In addition, we need to motivate children to learn, and whenever they are interested in learning, they will stay paying longer than if they were using other methods. If he is very interested in the subject, can learn or can do well, can do well in the exam, and is constantly praised.

In this case, the child will have a strong motivation and interest in learning, and can maintain his attention well. You can also do a little attention training at home, such as picking beans, wearing beads, etc., and the training of cultivating children's patience and attention can also have a certain effect. If it is a more impulsive child, fix a time for him to do exercise every day, and after the excessive energy is consumed, the child will not be so impulsive, and the attention will be maintained for a relatively longer time.

In addition, it may be some diseases, to check **, such as whether there is an allergy or whether it is a cold, fever, very tired recently, whether there is ADHD, whether there is a defect in attention development, these different diseases need to be corresponding**. Children must get enough sleep, and school-age children must have eight hours of sleep, otherwise chronic sleep deprivation will also affect concentration.