幼儿园大班科学实验活动教案《瓶子吹气球》（Kindergarten large class scientific experiment activity lesson plan bottle blowing balloon）

幼儿园大班科学实验活动 教案 中职数学基础模块教案 下载北师大版¥1.2次方程的根与系数的关系的教案关于坚持的教案初中数学教案下载电子教案下载 《瓶子吹气球》（Kindergarten large class scientific experiment activity lesson plan bottle blowing balloon） 幼儿园大班科学实验活动教案《瓶子吹气球》(Kindergarten large class scientific experiment activity lesson plan bottle blowing balloon) Kindergarten large class scientific experiment activities: "bottle blowing balloon" Teacher: Qu teacher Moving object 1. found that the mixture of baking soda and vinegar produces gas, which is related to the amount of material used. 2. can cooperate in order to carry out experiments, experience the basic experimental steps such as conjecture, verification and conclusion. 3. interested in scientific experiments and willing to explore the scientific phenomena around us. Main point: know that baking soda and vinegar mix gas. Difficulty: can cooperate in order to carry out experiments, sum up the amount of gas produced and the amount of materials related. Preparation: a group activity material: glass, soda, salt, sugar, vinegar, chicken essence, empty bottles, a spoon, a funnel, a balloon, before class children learn to set a balloon. A process to produce the bottle blowing suspected interest -- to stimulate interest in exploring the balloon. Teacher: children, today, the teacher and you do a fun science game, the name of the game is "bottle blowing balloon", you see...... Show me the bottle blowing balloons, gas balloons inside thinking: where did it come from? What's in the bottle? Two, with interest stimulated learning -- looking for the solution bubble magic, explore a mixture of baking soda and vinegar will produce gas. T: the water in the bottle is not water. It is a magical bubble liquid mixed by two kinds of materials. What are these two materials? 1. children to produce material, Wen Yiwen, see: vinegar, salt, sugar, monosodium glutamate, sodium bicarbonate 2. show experimental table, collective guess which two kinds of materials to produce gas together? Encourage children to express their guess with a variety of recording mode. 3. children explore experiments, teachers itinerant guidance. 4. exchange summary: baking soda and vinegar together produce gas. Guess sometimes is very unreliable, the best question to try it. Three, apply what you have learned - try blowing balloons with a bottle, a more intuitive perception of baking soda and vinegar mixed to produce gas. Teacher: we've found two kinds of materials that can produce gas. How are you going to use them to help the bottle blow up the balloon? 1. discuss how to help the balloon blow up, what should be paid attention to in the operation process? 2. children experiment, teacher guidance. 3. show the results, share the experience: what did your group do just now? Why are balloons big and small? Four, happy experience - let the balloon blow bigger, further verify the amount of gas produced and the amount of material related. Teacher: if you do it again, how do you plan to blow your balloon wider? 1. children discuss: use more materials, set balloons faster, hand cover a bottle mouth...... 2. again experiment bottle blowing balloons, experience the fun of science games. 3. sum up: the gas produced by baking soda and vinegar can blow up balloons, and the more the two materials are used, the bigger the balloon will blow. The more times you try, the more successful the experiment will be. Five, expand the extension - what is the magic gas blowing balloons, what are the applications in life, to stimulate the desire to continue to explore. Do you know what is the name of the gas blowing balloons used today to call, what is the use in our life? (all kinds of drinks in it, the doctor to help the patient to relieve pain to use it, use it to fire...... First, the design intention: the content of kindergarten science education should be close to the life experience of children, so that children's scientific research should start from their common things or things happening around them. Baking soda and vinegar are common necessities for us, and balloons are also a favorite toy for every child. But the mixture of baking soda and vinegar produces gas that can blow balloons, but most kids don't know. Therefore, this activity is familiar, unfamiliar and challenging to the children, which helps to broaden children's life experience and scientific vision. The mixture of baking soda and vinegar is just the carrier of activity, Not only the target activity, activity aims to let children experience a real experience of scientific inquiry process, fun, and feel that "science is not far away, on the side of science". Two, activity goal: 1, know the baking soda and vinegar mixture will produce gas of scientific phenomenon, understand the amount of gas produced and the amount of material related. 2, can cooperate in order to carry out experiments, experience guess, verification, conclusions and other basic experimental steps. 3. Interested in scientific experiments, willing to explore the scientific phenomena around us. Three, preparation of materials of various types of materials for the experiment, children learn to set the bottle, four balloon teaching and strategies proposed by Mr. Tao Xingzhi, on a problem, not to teach him to solve the problem, and should guide their children, to seek ways to solve problems, and to use this experience to solve other questions. In view of this, in the activity, I mainly use the five kinds of happy teaching method of doing middle school. "Learning by doing" advocates "children in the front, teaching in the back", different from the previous simple knowledge and hands-on knowledge education. It does not pay attention to the results, does not pursue children to grasp the exact concept of science, but stimulate children from play, do, think, try, use to find problems, explore knowledge, solve problems, experience happiness. In the relaxed atmosphere of "doing and playing", "changing acceptance learning" is "self constructed learning", thus realizing the true value and meaningful learning purpose. "Play school, middle school, high school, want to do with the middle school, five middle school music class" teaching method is mutual connection, mutual penetration and combination, rather than independent separated, I combine the basic link of this class is to introduce specific. 1, to doubt interest -- throw the question, how to play the game with a bottle blowing balloons? (play school) is the most common balloon toys every child to love, have a variety of ways, how shall we play today? What new tricks to play? A very clever, science teachers "baking soda and vinegar will produce gas" reproduced by the bottle blowing balloon form. The form of the game makes the scientific phenomenon intuitive, vivid and interesting, which makes the scientific activities change from the beginning without burden, without pressure, and only with creation and happiness. 2, to stimulate interest in learning - looking for the magic bubble solution, to explore the baking soda and vinegar mixture will produce gas. (high school, middle school teachers want to do): what is the material in the bottle so magical? We have to guess, do, find it! The children in the process through the observation on the cup marker to judge the glass materials to hands-on experiments to verify their conjecture. In the process of mutual discussion, imagination, in the discussion with others to expand ideas, the development of children's observation, judgment, imagination and hands-on ability. By guessing and verifying, the child will realize that the conjecture is sometimes unreliable, and it's better to try it yourself. 3, apply what you have learned - try blowing balloons with a bottle, a more intuitive perception of baking soda and vinegar mixed to produce gas. (school) teacher: find the material can produce gas, how are you going to use them to help the bottle blow up the balloon? This is the focus of activity, children will encounter problems need to use their brains to find ways in the process of blowing balloons, when collective play will be required to settle a dispute, this ability on the development of children to analyze and solve problems and interpersonal skills. These are indispensable sustainable development abilities for children to go to school and to go to society. 4, happy experience - let the balloon blow bigger, further verify the amount of gas generated and the amount of material related. (music high school) Division: if you do it again, how do you plan to blow your balloon wider? Children, on the basis of summing up the last experimental experience, second times blowing balloon game, experience the joy of success. With the first experience, they will be more devoted, more serious and more successful. Teachers can take the opportunity to carry out "as long as careful thinking, repeated practice.", Everything is going to be a better "such emotional penetration. 5, expand the extension - what is the magic gas blowing balloons, what are the applications in life, to stimulate the desire to continue to explore. We all know, only close to the education content of children's life, to let children understand the fun of learning, in order to maintain the surrounding life in the scientific phenomenon of strong curiosity and inquiry desire. What is today in the experiment of these gases? What is the use of our life? The teacher told the children, these gases are not only widely used in soft drinks we love to drink, the doctor can use it to help patients relieve pain, firefighters uncle can use it to fire, how wonderful! I love to to explore its mysteries! Here, children's desire to explore is ignited again, I believe that every child to participate in this festival will take this lesson to take home, will continue to explore. The above is my view of this activity, improper, please leaders, teachers more valuable suggestions. (source: Qu teacher's teaching plan net)