1. Reflection on cases of mathematical activities: understanding trapezoid

Case background:

Before this activity, the children have mastered the essential characteristics of rectangular, square, circular, triangular, oval and other plane graphics, and made some knowledge and skills preparations for the teaching of this activity. The new curriculum standard points out that this teaching should focus on making students gradually understand the shape, size, positional relationship and transformation of simple geometric shapes and plane graphics through observation, operation and reasoning; Pay attention to the development of children's space concept by observing objects, knowing directions and designing patterns, so that children can gradually rise from perceptual knowledge to rational knowledge. Because the trapezoid is only a set of quadrangles with parallel opposite sides, it is the most difficult one for children to understand in plane graphics, especially the concept of trapezoid, which is abstract, because teacher Chen makes children feel the trapezoid repeatedly and gradually understand its characteristics through various effective and operable activities, thus realizing the principle of making education playful and life-oriented.

The teacher set the goal of this activity as: 1. Understand the characteristics of trapezium preliminarily, and find out trapezium correctly in various drawings without being affected by the placement position of trapezium. 2. Know different trapezoids and cultivate children's analytical judgment ability.

Case description:

(A) children choose their own graphics to stimulate interest in learning.

(1) Do you see many numbers on the table, babies? Wait a minute, choose a figure and sit on the seat.

(2) Let the children choose a graph and tell them what graph you have chosen.

Analysis: Before the children entered the classroom, Mr. Chen randomly placed many figures (including triangles, squares, rectangles and trapeziums) on the table, so that the children could take one freely. Then she asked the children to take all the same figures and paste them on the blackboard, from triangles, rectangles to squares, to consolidate the review. Finally, I found that a child's hand is trapezoidal, which leads to today's protagonist. The transition is natural.

(two) a preliminary understanding of trapezoidal, trapezoidal characteristics.

(1) What is this number? Let the children talk about the characteristics of trapezoid.

(2) Understand the right angle and isosceles trapezoid, and understand the characteristics of trapezoid.

Analysis: Teacher Chen is divided into two parts here. The first focuses on guiding children to master the characteristics of trapezoid. How many sides does a trapezoid have? Count together. What about the upper and lower sides? It is concluded that there are four sides, one is long and the other is short, and the other two sides are not parallel. Here the teacher also made a parallel gesture.

On the basis of the first article, the second article guides children to know isosceles and right-angled trapezoid. When she knew the isosceles trapezoid, she folded the trapezoid in half to guide the children to find that the two sides can completely overlap and the two sides are equal in length. This trapezoid is called isosceles trapezoid. Knowing the right-angled trapezoid, I think Mr. Chen is also very creative. She first showed the right-angled trapezoid, and then asked the children to talk about what it was. Here, she guides children to use the concept of trapezoid, which has two parallel sides and four sides, and comes to the conclusion that it is trapezoid. Then take a square directly on the right angle of the right-angled trapezoid to guide children to find that an angle is a right angle and draw the conclusion that it is a right-angled trapezoid. (3) Search trapezium collectively to deepen the understanding of trapezium characteristics.

Teacher: Trapezoids can also somersault. They turn, turn and change, all hidden in the robot. Let's find all the trapeziums on the robot together. If we find them, we can take them off the robot. If you find it, you can take the trapezoid off the robot.

(1) Children look for trapezium and check and analyze collectively.

(2) Let children analyze the discovered trapezoid and judge which trapezoid it belongs to.

Analysis: The design of this link is also a highlight of Teacher Chen's activities, because the game itself is an important part of children's activities. The new syllabus also requires us to organize children's activities into games to arouse children's interest. Robots are also relatively interesting for children. Teacher Chen painted robots into many figures, which gave us a bright feeling. Children like to play games and have a strong interest in activities. However, in the second step of this activity, Teacher Chen learned the right angle and isosceles trapezoid. I think that at this step, when children find right-angle and isosceles trapezoid, teachers should point out that it can deepen children's understanding of right-angle and isosceles trapezoid.

(4) Search for trapezium independently, and consolidate the understanding of trapezium characteristics.

The trapezoid has been turned over and over, changed and changed, and now it is hidden here. We rolled up the found figures for them by finding a trapezoid.

Analysis: In the past, this step of the robot was collective operation, but this link was individual operation, giving each child the opportunity to think independently, which is also an indispensable link in mathematics activities. Judging from the situation of children's homework, children can master the understanding of trapezoid, and the homework situation is better.

Case reflection:

(1) Use game teaching to stimulate children's interest in learning.

Games are children's favorite form of entertainment. According to children's age characteristics and teaching content, it is an effective way to stimulate children's learning and improve teaching quality to carry out some teaching-related game activities.

This is also a highlight of teacher Chen's math activities. From the beginning, the atmosphere of the activity was very relaxed, and there was no formal class form. Instead, the game was really integrated into the activity, which distracted the children's interest in learning and made them know the trapezoid unconsciously.

(2) Link design, step by step.

Children's ability to accept knowledge is from easy to difficult, so our teachers should also follow this principle in the design of activities. Teacher Chen followed this principle when designing, from knowing the trapezoid-right-angled trapezoid-isosceles trapezoid, to the mixture of various graphics, and finally to the independent thinking and homework of each child. Every link is interlocking, from simple to deep.

(3) Create certain difficulties to stimulate children's interest in learning.

In daily life, children encounter difficulties and adults solve them in time. It is difficult for children to get exercise and will not take the initiative to overcome difficulties. If children are allowed to overcome difficulties through their own efforts, they will have an unprecedented pleasure and be satisfied from the bottom of their hearts. To this end, Mr. Chen deliberately set a certain degree of difficulty in mathematics teaching, so that children can cross the past and stimulate their interest in learning after some efforts. For example, in the activity of knowing trapezium, she used robots to let children find trapezium. In fact, this step is more difficult, because there are too many trapezoids on the miracle man, and children are easily confused. There is still a little missing line on the trapezoid of the robot head, which is to let the children find that it is not an enclosed trapezoid. She also asked the children to come up and make this figure into a trapezoid. The design of this link is more difficult, which is a great challenge for young children.

Second, the kindergarten junior high school mathematics reflection investigation case reflection

Children's thinking has different degrees of limitations, so the teacher's guidance must help children expand their thinking. In the activity, the child's attention shifts to the human body, and the answer is single. The teacher asked, "Besides some organs of the human body can be represented by the number 2, what else can be represented by the number 2 in our life?" .

In activities, when there are unexpected situations, teachers should take a serious and positive response, rather than an evasive attitude. Children always have unique views on their own ideas, and teachers give them space to express them, so that children can gain knowledge and experience in a relaxed atmosphere and satisfy their curiosity and thirst for knowledge in activities.

Therefore, I think that mathematics education in kindergartens should cultivate children's interest in learning mathematics, methods of learning mathematics and innovative consciousness. In this activity, organize children to observe and discuss some things in life to improve their interest; Master the learning method through the teacher's inspiration and guidance, and find the number of objects that meet the requirements; Innovation is to inspire and affirm children's different views and ideas.

Third,

How to interact with children in kindergarten teaching activities

Answer: The knowledge points and skills points of workflow learning tasks are prepared to observe and discuss the case of rhythmic activities 1. Familiar with the content of preschool children's singing activities II. Basic link 3. Teaching methods 1. How to interact with children in daily kindergarten teaching and activities to improve their interest in learning? Please help me.

Standard problem

A: This is the theme of the case, and the process of solving the problem should be described in detail. Reflection and analysis (case reflection) 1, reflection on behavior 2, theoretical improvement (6) How to write a good case teaching case? Write down the background of the incident, that is, write down the specific time, place and conditions, such as the basic situation of teachers and students, teaching conditions and teaching environment.

Advantages and disadvantages of kindergarten curriculum model

A: Similarly, under the kindergarten-based curriculum standard, we can see the reasons behind children's behavior and teachers' behavior and know how to use the new curriculum concept to adjust our teaching behavior by reflecting on the feedback of daily activities, the "generation and presupposition" of theme activities, educational teaching cases and the writing of reflection notes on teachers' growth. Teachers' presupposition and children's generating activities should blend with each other.