Hello everyone! Today, I said that the content of the class is the big class scientific activity "Our Teeth".

Let's talk about textbooks first:

"Outline" clearly points out: "Children's science education is scientific enlightenment education, focusing on stimulating children's interest and desire for exploration." Tooth protection is a common scientific content in large classes, and the activity content is rather boring, so efforts have been made in the teaching form. First, starting from the familiar cases of children, using the existing teaching resources, let children experience the causes of dental caries and understand the relevant knowledge of dental caries prevention, so as to achieve the purpose of educating 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. The second is to use experimental materials, pictures, courseware and other operating materials to improve teaching efficiency and effect. Therefore, according to the characteristics of children's activity, I designed the activity "Our Teeth".

Second, talk about teaching objectives;

The children in the big class have accumulated some experience in observing the surface of things. We also know that children need activities almost more than things. For children, action is thinking. Therefore, combined with the characteristics of early childhood science education in large classes, I have determined the following teaching objectives:

1. Observe and understand the structure, quantity and characteristics of teeth, and be willing to check and treat dental caries.

2. Understand the common sense of tooth care, pay attention to the health of your teeth, and know the importance of tooth care.

3. Through the activity experience, I personally realized that the correct brushing method is conducive to healthy growth, and I can realize the happiness and virtue brought by healthy white teeth: I can overcome the fear brought by dental examination and treatment, and show my willingness to accept dental examination or treatment.

Third, the pressure and difficulty:

According to the actual situation of large class children, I will take understanding the common sense of dental protection, paying attention to dental health and understanding the importance of dental protection as the focus and difficulty of this activity.

Four, said the teaching preparation:

In order to better accomplish the teaching objectives, I have prepared knowledge and materials.

Knowledge preparation:

1. Know the situation of children's tooth protection in this class. Create a publicity corner to protect teeth.

Material preparation:

1. Prepare a useful wall chart for dental education.

2. Dental model teaching aid, Apple

Five, said the teaching method:

Educational psychology believes that "learners can grasp the learning object more accurately and effectively by opening multiple perceptual channels at the same time than by opening only one perceptual channel." According to the children's learning situation, I adopted observation, questioning method, performance and other teaching methods in this activity. The observation method is used because children's thinking in this age group has obvious figurative characteristics and belongs to typical figurative thinking. From children's understanding of things and the characteristics of language itself, it is very important to implement the principle of intuition in kindergarten language education. Stimulating children's audio-visual organs directly by looking at pictures can make teaching lively and stimulate children's interest in learning. Questioning method is adopted because asking questions can guide children to observe carefully and purposefully and inspire them to think positively. I use enlightening questions to let children describe specific images in words, which is an effective way to solve the key points of activities. Questioning method is a method that can be used in language activities. By asking questions, observing and answering, children can understand stories more conveniently. Acting allows children to understand the words of different characters in the story while learning dialogue, which makes it easier for children to understand the psychological activities of different images and the development plot and content of the story.

Six, said the learning method

Following the law of children's learning and the characteristics of children's age, under the guidance of the new concept of the syllabus, the whole learning activity always takes children as the main body, changing the past "want me to learn" into the present "I want to learn". Follow the principle of teaching from shallow to deep, so that children can master the key points and difficulties of activities in a relaxed atmosphere of watching, listening, thinking, speaking and playing. Children will use observation, performance and so on. Observation means that children actively participate in activities through visual and auditory senses, and children directly get impressions by observing pictures. Performance is a psychological change in children's understanding of story images in learning, and it is a good opportunity for children to practice speaking.

Seven, the teaching process theory:

Combining the principles of kindergarten education and the objectives of this activity, I designed the following links:

(1) Wonderful games, introducing topics.

First of all, I use passionate language to arouse children's interest. Please pay attention to the children. The teacher guessed a riddle for everyone. "Your palm is as precious as a pearl, and you are clumsy and stupid. You look like a playful dog. You have time to climb trees. " What kind of animal is this? (Bear) At the beginning of the activity, I let the children play a game that they are very familiar with and like very much-solve riddles on the lanterns. The appearance characteristics and life habits of bears are made into riddles in children's language, which arouses the impression of bears in children's brains and paves the way for further study. Because children are familiar with bears, they can guess them soon, which greatly enhances their self-confidence and feels that they are studying in a relaxed and happy environment, which better stimulates their enthusiasm for learning and naturally leads to the topic.

(2) Appreciate the story and understand its content.

Let the children listen to the story with questions: "Today, the teacher told you a story called" Little Bear Pulls Teeth ". Why did the bear pull out his teeth? " The teacher told the story with an expression. At this time, children listen to stories, watch courseware and understand the content of stories. After listening, the teacher asked: the name of the story, who is the person in the story? Why do bears have toothache? Who will help bear pull out his teeth at last? What happened again? Does anyone know what our own teeth look like?

Third, intuitive images guide people's content.

A wall chart or model teaching aid showing teeth. Under the guidance of teachers, let children observe and understand the shape and arrangement order of teeth, exchange the classification names of teeth, and count the number of teeth, fangs and molars of their peers.

There are two dentitions in a person's life. The first dentition is called deciduous dentition and consists of 20 deciduous teeth. The first deciduous tooth began to erupt about 6 months after birth, and 20 deciduous teeth erupted about 2 and a half years old. From 6-7 years old to 12- 13 years old, deciduous teeth gradually collapsed and were replaced by permanent teeth. Permanent teeth are the second dentition after deciduous teeth fall off. If they fall off due to illness or accidental injury, there will be no teeth to replace them. In modern times, the third molar tends to degenerate, so the number of permanent teeth is generally between 28 and 32.

Fourth, know the teeth through experience and observation.

1. Let the children taste the apple slices and guide them to answer.

(1) What teeth did you use to bite the apple off? What teeth do we call it? Where do the front teeth grow?

(2) What teeth do we chew apples with? What teeth do we call it? Where do molars grow? (Let children imitate eating chicken legs)

(3) How do we eat chicken legs? Which teeth bit off the chicken leg? What teeth do we call it? (fangs are also called canine teeth) Where do fangs grow?

Fifth, in the game of "guess who I am", deepen the preliminary understanding of teeth.

Guess who I am, son. I live in the middle of my mouth I'm square (front teeth): I'm sharp, and I live on both sides of front teeth (fangs): I'm older, and I live behind my mouth (grinding my teeth).