Blowing a big balloon 9 all novelsCurrently, he had found out that the novel that Blow A Big Bubble 9 wrote was " Be Harder To Yourself When You're Reborn ". This was an urban rebirth novel. The main character was reborn in 2005. He was a poor and ugly junior high school student. Through his own efforts and the help of the system, he became the top scorer of the college entrance examination and walked towards the peak of his life. The total word count was 2,676,900.
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Reflection on science bottle blowing balloon in kindergartenThe following is an example of a reflection on the kindergarten science "Bottle Blowing Balls" campaign:
** I. Reflection on the achievement of the activity goal **
1. ** Scientific knowledge and understanding of phenomena **
- During the activity, the children had an intuitive experience of the scientific phenomenon that the mixture of baking soda and vinegar would produce gas. Most of the children could observe the phenomenon of the balloon being blown up, and they basically achieved the goal of knowing that the mixture of baking soda and vinegar produced gas. However, for the deeper knowledge that the amount of gas produced was related to the amount of materials used, the child might only have a preliminary perception and could not understand it deeply. In the follow-up activities, more comparison experiments could be designed, such as using different amounts of baking soda and vinegar to mix, so that children could more clearly observe the relationship between the change in balloon size and the amount of materials used.
2. ** Experimental Skills and Exploration Ability **
- In the operation stage, the child could follow the steps to carry out the experiment, such as pouring vinegar into the bottle, filling the baking soda into the balloon and putting the balloon on the bottle mouth, which indicated that the child had a certain hands-on ability. However, in the process of exploration, the child's active exploration awareness could be further improved. For example, when the balloon was not blown up or not blown up enough, some children lacked the ability to actively think and try to adjust the experimental steps or the amount of materials used. In future activities, children could be given more time and guidance to explore independently, encouraging them to take the initiative to find solutions when they encounter problems.
3. ** Expressiveness and teamwork **
- During the activity, children had certain opportunities to express themselves, such as describing the changes in the balloon and sharing their feelings about the experiment. However, the overall expression was not in-depth and comprehensive enough. It was more of a simple description of the phenomenon. In terms of teamwork, although each child had their own experimental materials to operate on, they lacked group cooperation to complete the experiment. In the future, he could increase the content of group cooperation. For example, the group could discuss how to make the balloon bigger, and then divide the work to carry out the experiment. This could not only improve the children's ability to express themselves, but also enhance their sense of teamwork.
** 2. Reflection on the activity process **
1. ** Introduction Stage **
- The introduction of questions or interesting phenomena could arouse the interest of young children. For example, the introduction method of "how to play the game of blowing balloons with a bottle" could attract the attention of young children and stimulate their curiosity. However, the introduction part could be more diverse, such as adding some life scenes or short stories related to baking soda and vinegar, so that children could better understand the existence and use of these two materials in life, so as to lay a better foundation for subsequent experiments.
2. ** Experiment Operation Link **
- During the experiment, it was found that some children were not familiar with the operation when pouring the baking soda into the bottle. For example, the baking soda was poured out or poured too fast, which affected the experiment effect. This might be because the explanation of how to operate the experiment was not detailed enough during the preparation stage. In addition, the preparation of experimental materials could also be improved. For example, some auxiliary tools could be provided to make it convenient for children to accurately pour baking soda into the bottle. At the same time, when the children were conducting experiments, the teacher's individual guidance needed to be strengthened. They should find the problems in the operation of the children in time and give them the correct guidance.
3. ** Wrap-up segment **
- In the summary section of the class, although the explanation of the experimental principle could let the children understand that the mixture of baking soda and vinegar produced carbon dioxide to blow up the balloon, the explanation might be too simple and abstract. For young children, they could use more vivid and vivid methods, such as making simple animations or using simple models to show the process of gas production and balloon blowing. This would help young children better understand the scientific principles behind the experiment.
** 3. Reflection on the extension of the event **
The activity extension could be further expanded, and it was not limited to simple extension such as decorating the activity room in the classroom. It could guide children to think about similar chemical reactions in their lives, encourage children to go home and carry out simple explorations with their parents, such as observing whether bubbles would be produced when baking powder and yogurt were mixed at home. This could extend scientific inquiry activities to children's daily lives, broaden children's scientific horizons, and cultivate their interest in science.
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