The lecture note of "Graphic Classification" in kindergarten middle class mathematics is 1: 1. Teaching materials.
This activity mainly requires children to identify plane geometric figures and classify them according to different colors and shapes. The children in the middle class are intuitive in thinking, so they should pay attention to the obvious characteristics of things in the learning process. In this math activity, children's common geometric figures are selected, so that children can operate and explore independently, exchange and learn with each other, which embodies the educational concept of playing with middle school and applying what they have learned.
Second, the target activity.
The goal is the starting point and destination of teaching activities and plays a guiding role. According to children's age characteristics and actual situation, establish cognitive, emotional and ability goals. Among them, there are exploration cognitive part and operation part. The objectives are:
1, children can skillfully identify four basic geometric figures and connect them with real life.
2. Guide children to correctly classify according to certain characteristics, regardless of size, and boldly speak their own classification process.
3. Stimulate children's interest in mathematical classification activities, organize materials as required after the activities, and develop good operating habits.
4. Emphasis and difficulty of the activity: classify the graphics according to their different characteristics (after classification, it is said that they are classified according to color and shape).
Third, talk about activity preparation.
Activity preparation serves specific activity goals, and children develop through the interaction of environment and materials. Activity preparation must adapt to the objectives, abilities, interests and needs of the activity subject, so activity preparation is:
(1) courseware making, music "Finding Friends" and "Outing", practice video.
(2) Making a number of circular, triangular, square and rectangular cards with different sizes and colors; Similar objects of four basic figures.
Fourth, talk about teaching methods and learning methods.
(1) The new syllabus of teaching methods points out that teachers should be supporters, collaborators and guides of learning activities. In the activity, we should strive to "form the cooperation and interaction between teachers and children", so in addition to preparing rich activity materials, I also tap the activity value of this activity and organize teaching in an appropriate way. I used:
1, scenario creation method: In the activity introduction part, children should not only discover problems, but also lead to a series of questions and explorations, and set suspense in a way that children are interested in.
2. Demonstration method: Teachers demonstrate the graphics according to different colors and shapes through the electronic whiteboard to help them gain a certain understanding.
3. Observation: Observation can enrich children's perceptual experience and cultivate children's interest and curiosity about things around them.
4. Game method: the content of entertaining games, fully arouse children's learning enthusiasm, and let children "play in school, play in school". In this activity, "game" runs through the activity, and the game is a main line of this teaching activity.
(2) Children who study law are the masters of learning. Taking children as the main body and creating conditions for children to participate in exploration activities not only improves children's exploration ability, but also enables children to acquire learning skills and stimulate children's interest in learning. The methods used in this activity are:
1. Operation method: refers to children's hands-on operation and inquiry learning in the process of interacting with materials. The operation of this activity is to help graphic babies sort out queues and puzzles, so that children can understand geometric figures by watching, playing and spelling.
2. Communication mode: the peers communicate with each other and discuss problems. In the process of communication, children can not only develop their language skills, but also share their experiences with their peers.
Five, said the activity process
1. Creating situations to stimulate children's interest in participating in activities is the best teacher. Arouse children's interest in class, attract their attention, and stimulate their interest in participating in activities through rhythmic exercise. Guide the students to recall the pictures they have learned, take the opportunity to lead to the topic and explain the learning objectives.
2. Cooperate and exchange, explore new knowledge (1), sort out ideas and show the process. Teachers demonstrate the process of classification with electronic whiteboard to deepen students' understanding of graphic classification.
(2) After children try to classify and ask questions about classification, let them think about how to classify first. On the basis of independent thinking, let the children discuss in groups with the help of learning tools.
(3) Use expansion and extracurricular extension to show puzzles and inspire children to use geometric figures to puzzle freely and happily.
Guide them to think about problems, seek solutions to problems, exchange help with each other, and share the process and results of exploration. It is concluded that a new figure can be spelled with several different shapes. Children repeatedly feel and experience during the game to break through the difficulties. At the same time, it also cultivates children's initial sense of cooperation and ability.
3. Play games to find friends' music, find friends in music, and find objects similar to the cards in your hand as good friends. Deepen the understanding of classification.
4. Summing up Let the children go home and look for it, think about what is similar to a circle, triangle, rectangle and square in daily life, and tell their parents.
5. End the activity with the rhythm of the outing.
Lecture Notes on Mathematics "Graphic Classification" in Class Two of Kindergarten Junior Middle School: Activity Objectives
1, to stimulate children's interest in exploring the mystery of graphics.
2. Cultivate children's initial ability of observation, judgment and classification.
3. Consolidate the understanding of graphics and classify them according to their two characteristics.
4. Stimulate children's interest in learning and experience the happiness of mathematics activities.
5. Cultivate children's comparative judgment ability.
Activities to be prepared
1, graphics cards of different colors and shapes.
2. Three pairs of pictures composed of different graphics.
3. "Train", basin.
4. "Looking for Friends" music tape.
Activity process
First, start:
1, music game "Finding Friends".
Play music, the teacher leads the children into the activity room, and the teacher guides the children to do various dance movements and play music games to find friends.
Step 2 imagine and discuss
Just now, the children all found their good friends. Everyone had a good time, and the teacher was also very happy, because the teacher knew that the children were very polite and liked to meet many friends. Today, the teacher brought many new children to everyone. Do you want to play? (Guide children to imagine what kind of new friends they are, and discuss and answer)
The teacher concluded: The child wants to play with new friends. How nice! These new friends also want to play with you. They can't wait to fly to America. Look, their parachutes are flying down. Son, come and find a good friend you like.
-The teacher scatters graphic doll cards from a height.
Second, know the color and characteristics of graphic dolls.
The teacher concluded: Well, everyone has found their favorite graphic dolls to be good friends. Now, I have some questions to test the children.
1. What color is the graphic doll you found? Have you ever seen this color?
Please answer the children.
Teacher's summary: Our graphic dolls have red, blue and Huang San colors.
2. What shape is the graphic doll you found? What else have you seen in this shape?
Please answer the children.
Teacher's summary: Graphic dolls are round, oval, triangle, square, rectangle and trapezoid, which are really beautiful. Do you like playing with him? Today, the teacher takes you and your good friend to play by train. Do you want to go?
3. Game: Train Play
(1) Teacher: Look, there is a train over there. The train has seven carriages of different shapes. Please don't take the wrong bus when you get on. Please enter the carriage with the same shape as your graphic doll.
Teacher: Click, click, attention, everyone. The train has already started. We are going to play. Are you happy?
(2) Click, click, click, Shanghai Railway Station is here. (The class teacher shows the picture) Look, here is a beautiful picture. Inspire children to say which shapes are the objects in the picture.
The teacher concluded: the children are really smart, so the figure doll still wants to play with us, and our train is leaving again. Click click,
(3) Click, click, click, Beijing Station is here. (The class teacher shows the picture) Look, here is a more beautiful picture. Inspire the children to say that there is a rectangle and several triangles in the picture.
Teacher's summary: Little friend, you speak very well. Our train is leaving again. Click, click, click. We went back to the classroom. Please get off and pay attention to safety.
Just now, the graphic doll took us on a quick trip and had a good time. But ah, some graphic dolls have dirty faces and some graphic dolls have dirty hands. What shall we do to inspire the children to answer?
4. Game: Take a bath for the graphic doll.
Teacher: Let's help the doll bathe. (this article. Source: Teacher Qu. When taking a bath, the graphic doll likes to go to the basin with the same color as herself. Please ask the children to take a bath in a basin of the same color as the graphic doll.
The teacher inspires children how to wash or say nursery rhymes.
Third, the game: good friends squat together.
Graphic dolls are clean and beautiful. What happened to them? They want to play the game of "being good friends and squatting together" with the children.
Play music. Play the game according to the teacher's password.
Fourth, the end.
Handout 3 of Mathematics "Graphic Classification" for Kindergarten Middle Class:1. Teaching material analysis:
1. The main content and writing intention of this unit.
The main contents of this unit include: graphic classification; Triangle classification; Sum of internal angles of triangle; The sum of any two sides of a triangle is greater than the third side; Preliminary understanding of trapezium and trapezium of parallelogram: graphic appreciation. It is the first lesson of this textbook "Understanding Graphics".
The teaching of this textbook is based on the previous understanding of three-dimensional graphics and plane graphics, so that students can experience specific graphic classification activities, classify and sort out some graphics they have learned, and understand the classification characteristics of graphics and the relationship between graphics; Practical activities are arranged in the textbook. "Take a look and talk" Let students give examples of the application of triangles and parallelograms in life, and then design an activity "pull-pull". Through hands-on operation, let students understand that the stability of triangles is better than that of quadrangles, and the application of triangle stability in life.
2. The core idea of mathematics in the textbook.
Classification of graphics
3. My idea
I think this class is still very valuable in geometry teaching in primary schools. Before we learn more about parallelogram, triangle and trapezoid, we can have an overall understanding of plane and three-dimensional graphics, so that students can initially understand the characteristics of graphics in the process of classification and stimulate their interest in further exploring the characteristics of geometric graphics. In teaching, the process of classification can be used to make students pay attention to the characteristics of edges, angles and surfaces of geometric figures, and can describe the figures intuitively, and summarize and abstract their characteristics and differences.
Second, the analysis of learning situation:
1. Students' existing knowledge base.
Students can find three-dimensional and plane graphics from real objects in life, and they can correctly name graphics, but a few students confuse plane graphics with three-dimensional graphics.
2. Existing experience, the combination of existing experience and new knowledge.
Most students can grasp the characteristics of plane graphics and three-dimensional graphics to classify graphics, which shows that students have certain classification ideas and abilities. However, it can also be seen from the classification of students that their classification process is more based on feelings, and they do not really use graphic features to classify. There are still some students who do not master the same standards in the process of classification, which leads to confusion in classification.
3. Students' learning interests and difficulties.
Although students can classify graphics, it is difficult to grasp the uniqueness and differences of graphics in the process of classification, and it is also difficult to feel the characteristics of edges, angles and surfaces.
Third, the teaching objectives:
Considering the design intention of this textbook comprehensively, according to the basic idea of mathematics curriculum standard, I set the teaching goal of this course as follows:
1. Be able to distinguish plane graphics from solid graphics, and know plane graphics such as triangles and quadrilaterals.
2. In the process of classifying geometric figures, feel the features of edges, corners and faces of the figures; At the same time, the classification method is obtained and the classification idea is developed.
3. Develop the ability of induction, abstraction and generalization, and develop the concept of space.
Fourth, teaching emphasis: In the process of classifying geometric figures, we can feel the characteristics of edges, corners and faces of the figures.
5. Teaching difficulties: the ability of induction, abstraction and generalization.
Six, teaching methods and learning methods:
The core idea of Mr. Ye Shengtao's teaching is: "Teaching is for not teaching". This shows that the goal of modern teaching is not only to let students "learn", but more importantly, to let students "learn". In teaching, I pay attention to the use of dialogue, discussion and activity teaching, and implement the teaching mode of group cooperation. Let students learn through observation, comparison, hands-on operation and other forms, enhance students' interest in learning geometry knowledge, form representations and develop spatial concepts. Give full play to the leading role of teachers, so that students' dominant position can be implemented.
Seven, design concept:
"Mathematics Curriculum Standard" points out: "Mathematics teaching is the teaching of mathematics activities." This lesson designs a situation string, which runs through the whole lesson. Through physical graphics, self-made teaching AIDS and multimedia courseware, we strive to transform abstract mathematics knowledge into rich and interesting mathematics activities, so that students can practice, explore, feel and experience the fun of mathematics learning in the activities, and strive to let students not only gain knowledge in mathematics activities, but also experience and appreciate the process of knowledge acquisition personally.
Eight, the teaching process:
Talk before class:
Taking "making friends" as the topic can narrow the psychological distance between teachers and students and create an equal and harmonious classroom atmosphere.
(A) create a situation to stimulate interest in the introduction
As soon as class begins, I will create a teaching situation orally to stimulate students' interest in learning. I said, class, do you want to know who they are? "
Design this link to stimulate students' curiosity and interest in learning mathematics.
(B) Group cooperation to explore new knowledge
The courseware shows this group of old friends in turn, and then guides the students:
1. Say "the names of these old friends"
2. Ask questions and reveal the topic.
Step 3 try the first classification
(1) Teamwork and hands-on operation.
(2) Exchange reports.
(3) contact and conversation.
(4) Summary: According to whether the graphic surface is flat or not, we can divide the graphic into plane graphics and three-dimensional graphics.
4. Try the second classification
5. Try the third classification.
6. Expand knowledge and form a system.
(1) Draw a picture to expand your knowledge.
(2) Using Wayne diagram to express the relationship between the members of the graphic kingdom.
Mainly to let students compare, abstract and summarize through their own hands-on operations, so as to classify the graphics. Students should not only be able to explain clearly how it is divided, but also be able to say the classification standards. By drawing a picture, I expanded the teaching materials and understood polygons and ellipses. Wayne diagram is used to sort out the graphic relationship, form a complete knowledge system, and help students complete the knowledge construction smoothly.
(C) practical activities to expand thinking
1, the first round of "See who appears more times in life"
2. The second round "See who is more stable"
3. Expand the application
4. eye-catching:
It changed the practice form in the textbook, increased the judgment questions, and focused on creating vivid and interesting situations according to the students' existing life experience. Let students feel that mathematics comes from life, and there is mathematics everywhere in life, and cultivate students' awareness of mathematics application. At the same time, it also pays attention to the team spirit of guiding students to think positively and actively cooperate and communicate with others.
(4) class summary
Tuyou also brought us gifts. The first gift, exquisite patterns made of various graphics; The second gift is the graphics in various beautiful buildings.
Let students understand the importance and application of triangle stability in life by appreciating the graphics in living buildings.
Nine, blackboard design:
The blackboard writing in this lesson tries to be concise and clear, focusing on the three bases of graphic classification, so that students can better grasp the characteristics and classification standards of graphics.