How is tooth decay formed?

Question 1: The activity teaching plan of "How is the tooth cavity formed" and "Brush your teeth together" in a big class.

I. Design Intention

It is pointed out in the outline that it is an important part of kindergarten education to educate children in all aspects step by step. In view of the fact that some children in this class have decayed teeth, I'm going to educate the children about tooth protection by brushing their teeth, so as to cultivate the good habit of brushing their teeth in the morning and evening. The focus of this activity is to guide children to master the correct brushing method and know how to protect their teeth through intuitive demonstration and practice.

Second, the teaching objectives

1, learn about oral health care.

2. Learn the correct way to brush your teeth.

3. Cultivate children's good hygiene habits.

Third, teaching preparation.

1, dental model, several small toothbrushes, adult toothbrush handles.

2. video.

3. Arrange the sitcom of Toothache in advance.

Fourth, the activity process

1, brush the rhythm.

2, the scene shows "toothache", which leads to the activity content.

Teacher: A very interesting thing happened today. Do the children want to see it?

After enjoying the performance, ask:

"Children, do you know what tooth decay is?"

The teacher's summary after the children's discussion

3. Watch the video together to understand the causes of tooth decay.

4. Guide children to discuss how to protect their teeth.

After the children discussed, the teacher concluded that it is necessary to brush your teeth more.

Teacher: There are many ways to protect your teeth. The teacher especially agrees with XX's children that you should brush your teeth frequently. Teacher, there is also a cartoon of brushing your teeth here.

5. Learn the correct method of brushing your teeth.

1. Ask questions after watching the video. What you just saw is how to brush your teeth. Watch the video again after the children answer.

(2), the teacher demonstration again, while reading children's songs and brushing your teeth.

③ Show the model of "teeth", and ask two children to come forward and demonstrate brushing their teeth.

4. Give each child a toothbrush, practice the correct brushing method together, and brush your teeth while reading children's songs.

⑤ Brush your teeth with music, and the activity is over.

Verb (abbreviation of verb) reflects on activities.

It is pointed out in the outline that it is an important part of kindergarten education to carry out all aspects of health education for children step by step. Children know how to care for their teeth, but they are not so active in their actions, so I have always held the principle of entertaining and entertaining when designing activities. Animation is a form that children are most interested in, so I designed a courseware with the help of multimedia, which played a great role in the activity and the children were very interested. Through the study, children understand the causes of tooth decay, and children also master the correct method of brushing teeth, which is conducive to developing good hygiene habits of brushing teeth in the morning and evening, and has received good results. From materials, formation to organization, teachers' language, children's performance and so on. They are all personalized and rich activities, allowing children to actively explore and learn and discover knowledge. The whole article organically combines boring health activities with language activities and music activities.

Question 2: How is tooth decay formed? As the picture shows, there are three factors that cause tooth decay: sugar, bacteria and time. Sugar will provide nutrition for bacteria. If it is not cleaned for a long time or not, it will produce acid that can corrode enamel. Slowly, the enamel will be eroded thinner and thinner until the dentin is exposed. In the worst case, dental pulp (toothache) means that bacteria have at least broken through the enamel.

Question 3: How do children grow cavities? Intensive shrimp farming is easy.

Question 4: The teaching plan goal of the picture book "Who is the friend of tooth decay" in the big class:

1, understand the general content of the book, and be able to express it boldly in words.

2. Know how to maintain your teeth and develop the good habit of brushing your teeth in the morning and evening and gargling after meals.

Activity preparation:

1, toothbrush and cup

2. Video "Beans' Teeth"

3.ppt pictures

Activity flow:

First, import

1, Teacher: Today, we have a little guest in Class Four. who is it? (Show pictures 1)

Children answer: cat, mouse (doctor)

2. Teacher: Where is the mouse? (prone on the morning cat's head) It seems that the mouse and Dr. Mao must be very good friends. So how did they meet and become good friends? They met each other by their teeth. )

3. Teacher: What do they do? What kind of doctor is that? What does a dentist do? So today's story is called "Dentists have cavities". (Show Picture 2)

Second, enjoy picture three.

1, Teacher: How can that little mouse have cavities? (eating ice cream)

Summary: Rats ate their favorite ice cream before tooth decay, and their teeth ached after taking a bite of ice cream.

Third, enjoy picture four.

1, Teacher: What did the mouse do after it decayed its teeth? (going to find a cat doctor) What are you looking for a cat doctor for? (tooth extraction) (tooth extraction at the cat clinic)

2. Teacher: What is the expression of a mouse? (Scared) to study together.

3. Teacher: Although the mouse is scared, does it cry? Where's the mouse? (Brave) Let's praise it together.

What should we do if our children go to the dentist? (Brave) It seems that the children in Class 4 are brave children.

Fourth, enjoy the video.

1, Teacher: Today our class came again. When I think of Doudou, he also has cavities, but he is not as brave as you. Let's see what happened to him.

2. Teacher: How to pull out Doudou's teeth? What about dental bacteria? (Brush your teeth)

This story tells us that children should rinse their mouths after meals and brush their teeth before going to bed, so as to brush off dental bacteria, and then our teeth will not hurt. Son, if we brush our teeth every day, our teeth will grow white, and our teeth will not hurt in the future!

Question 5: The teaching plan goal of the picture book "Who is a friend with cavities" in the big class: 1, carefully observe and understand the picture content, and actively share your thoughts with teachers and peers. 2. Understand the growth process of young trees and stimulate children's interest in exploring the growth process of life. Activity preparation: 1, "What it's like to grow up", a manual, 2, pictures, blackboards, magnets, and a notebook for ducks to grow up, 3, light music and courseware activity flow: 1. Show picture books to stimulate children's interest in reading. At the first activity, the teacher said that there was an interesting book, and the children thought it was "The Tree in the Bird's Nest", so when the picture book was presented, the children didn't fully realize that it was a new book until the book was delivered to the children, and the children waited for a while. Second, free reading 1, put forward reading requirements. 2. Play music and children can read freely. The picture shows children reading freely. Children in this part are naughty, so when these children are reading freely, many children will speak out the pictures they see, which will influence each other and become a small discussion among children. Teachers tour to guide children to basically say the key points in the picture. Some children say "I see a seed, the child is eating" and so on. This link is carefully observed by children. Guide children to communicate what they see. In this link, guide the children to speak on their own initiative, because every time the children tell pictures of small trees, the teacher will post small pictures accordingly, which will arouse the children's great interest. However, in the process of speaking, the teacher found that the children were more observant and more interested in people, and they would always talk about what they were doing and pay little attention to the young trees. Third, show the courseware, lead the topic to ask questions, and guide the children to find out that "What is growing up" is about the growth process of small trees. After showing the courseware, the children enthusiastically answered questions for the birds. In the process of answering questions, the teacher found that the children could not summarize the book about how the young trees grew, but the children would unconsciously look at the small pictures on the blackboard to answer the questions, so the teacher could only help the children point out: Alas, why do you keep looking at these pictures? Is this book about how young trees grow? Only in this way can children respond. Fourth, teachers and children * * * look at the picture book P 1-29 to understand the picture content. 1. Read the first page carefully and guide the children to understand the process of small trees by asking questions. In the process of reading with teachers and children, the growth of young trees will be complete. Teachers and children * * * guide children to speak actively and observe picture books carefully during reading, but the teacher forgot to complete the growth stage of small trees that children didn't say in this link, which led to the inability to interact immediately after reading, and it took time to explain it again. 2, interactive session 5, children's operation, teachers and children * * * retell the picture book P 1-29 1. 1, please arrange the growth process of small trees correctly in order. 2. Check with the teachers and children, and use the retelling picture book p 1-29. Please come up and put the little pictures on the blackboard in order. Checking with children as this link, children are still very interested and actively raise their hands to participate. Children who don't come up to operate will even remind two children who are in a hurry to operate. The whole situation is very good. Teachers and children can basically read together when they check together, but the teacher will still mix the children in at the beginning. This link is best just to retell the growth process of young trees and highlight the teaching focus. Play music, and the teacher and the children will look at the rest of the picture books together. "Spring has come, summer has come, and young trees have become big trees, bearing many fruits. What's going on here? Didn't the fruit drop? Why did it appear again? The answer is in the book. Please open p30. The atmosphere is good. With the music, the children are also very cooperative in reading, and their mouths are reading gently with the teacher. Extended activities: 1. " This is a book about the growth of small trees. In fact, every life has its own growth process, just like this duck egg in my hand. Now let's write a book about the growth of ducklings. "2. Show the records and let the children continue to observe how the ducklings grow in the next time. Generally speaking, after this class, children can master the growth process of small trees and know that every creature has its own growth process, but the whole class is still a bit boring, partly because of the problem of material selection. Most of the contents in this book are scientific knowledge, and children are relatively ... >>

Question 6: the goal of oral activities in kindergarten is to understand the teaching plan of dental caries;

1, children can count numbers within 3 with their mouths and hands.

2. Initially cultivate children's interest in counting activities.

Focus of activities:

Guide the children to say the consistent points within 3.

Question 7: What are the books related to tooth decay? Preferably a picture book. Children's easy-to-understand goal: 1. Understand the general content of the book and boldly express it in words. 2. Know how to maintain your teeth and develop the good habit of brushing your teeth in the morning and evening and gargling after meals. Activity preparation: 1, toothbrush and cup 2, video "Doudou's teeth" 3, ppt picture activity flow: 1. Import 1, Teacher: Today we have a little guest in Class 4.

Question 8: Ask for the activity design background of the health class of the "tooth protection" teaching plan for children.

Tooth protection is the scientific content of the big class, which is a bit boring. I have made great efforts in the design of teaching activities. Once, I started with the familiar cases of children, and used the existing teaching resources to let children experience the causes of tooth decay and understand the relevant knowledge of tooth decay prevention, so as to educate children to brush their teeth in the morning and evening and develop good hygiene habits. Secondly, I used experimental materials, courseware, pictures and other operating materials to improve teaching efficiency and effectiveness.

moving target

1, so that children can understand the causes of tooth decay and the relevant knowledge of preventing tooth decay, and master the correct brushing methods.

2. Educate children to insist on brushing their teeth in the morning and evening, and develop good hygiene habits of brushing their teeth in the morning and evening.

Teaching emphases and difficulties

Learn to brush your teeth correctly and protect your teeth.

Activities to be prepared

Teaching aid: 1. Soak half the washed eggshells in vinegar two days before the activity.

2. photos of cavities

3. Courseware "Tiger Who Loves Sugar"

Learning tools: 4. Toothbrush 1. 5. One biscuit per person. 6. Everyone has a small mirror.

Activity process

First of all, the situational dialogue leads to the topic of dentistry.

Teacher: xxx, can you tell the teacher where you went yesterday? I went to have my teeth filled. There is a small hole in my tooth, which hurts very much.

Teacher: Children must want to know how their teeth are broken. Let's do an experiment first.

Question 9: Classroom teaching video of preventing tooth decay Baidu or Youku searched' what I said', and one of them was' A tooth decay that doesn't want to be a worm tooth is not a good tooth decay'. There is a video version, which is very detailed.

Question 10: Teaching plan: Why do teeth have cavities? Let's talk about what causes dental caries, namely bacteria and eating habits. Everyone has bacteria in their mouths. Why do some people have cavities when they are fine? The biggest reason is eating sugar, especially not brushing your teeth after eating sugar at night. Sugar makes bacteria multiply wildly, and bacteria will ferment sugar into acid, decalcify teeth, corrode and destroy enamel, and form cavities. It is difficult for bacteria in the cavity to clean teeth, and without enamel protection in the cavity, bacteria will further corrode and damage the pulp. Finally, it will be pulpitis, and then the teeth will be pulled out.