Reflection on the Tools of CleaningThe following is a reflection on the cleaning tools teaching activities:
** 1. Setting goals **
1. ** The target should be focused on the core content **
- In teaching activities related to cleaning tools, the goal should not be too scattered. For example, the activity goals included things like " learn to control your emotions and not cry when you're sad or in pain " and " understand the main symptoms, and understand the self-protection awareness of prevention and treatment ", which were not strongly related to cleaning tools. This would cause the focus of the activities to be not prominent, and it would be difficult for teachers to design and guide effective teaching activities around a core during the teaching process.
2. ** Increase the difficulty of the target **
- The difficulty of setting the target had to be increased. If the goal of the whole activity is not challenging, the child's ability development in the activity may be limited. For example, it only stopped at the basic level of understanding the names and uses of cleaning tools. It did not further guide children to explore the working principle of cleaning tools or the optimal selection of different cleaning tools in different scenarios.
** 2. Teaching process **
1. ** The purpose of a toddler's operation **
- In the process of children operating cleaning tools, it was necessary to strengthen the purpose of the operation. If the child was only playing with the tools and lacked a clear operation task, such as just feeling the tools without a clear cleaning task, the educational value of the operation process would be greatly reduced. Teachers should design operation tasks with clear purposes in advance. For example, by setting up different cleaning scenes, children should choose the appropriate cleaning tools according to the needs of the scene and complete the cleaning work.
2. ** The continuity between links **
- There needed to be a clear link between the teaching segments. For example, from understanding cleaning tools to class labor day activities, to sharing the results of labor, the transition between each link should be natural and smooth. If there was a lack of connection between the links, the entire teaching activity would seem stiff and fragmented. It would be difficult for children to establish a complete knowledge system and operational experience system in the activity.
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What are the DSLR cleaning tools?The cleaning tools for DSLR lenses are as follows:
1. The working principle of the lens pen is to use carbon powder to absorb oil and clean it. It is a relatively good lens cleaning tool.
2. Soft towel: Dip it in vinegar water or soda powder to wipe the surface of the lens, then use a dry cotton cloth to soak it in a suitable amount of water to wash it.
3. Brush: It can squeeze out dust or oil from the lens, but be careful not to touch other dirt.
4. Ultra-audio equipment: This is a high-efficiency, low-noise product, but it requires regular maintenance to ensure its stability and operational performance.
5. Special dust-absorbing materials: For lenses with a lot of dust, glass glue and other debris can be used to remove the dust.
6. Washing agent: You can use a brush dipped in washing agent to clean the water stains on the lens surface.
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Tools for cleaning the kindergarten lawnFor the cleaning of the artificial lawn in the kindergarten, you can use a soft broom to clean the surface regularly. You can also use tools such as lawn brush boards, combing machines, brushing machines, and sand washing brushes to clean. In addition, there were related products such as lawn mowers that could be used for lawn cleaning.
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What cleaning tools do microscope lenses need?Common tools for cleaning microscope lenses included lens pens, lens cleaning paper, lens cleaning cloths, distilled water, and so on. Among them, lens pens were cleaned with carbon powder to absorb oil; lens cleaning paper was available from many brands; lens cleaning cloth was also a common cleaning tool; distilled water could also be used for cleaning. In addition, there were some special cleaning liquids that could be used to clean the microscope lens. For example, Chengri Xinguang (lens cleaning liquid) could be used to clean the objective lens, eyepieces, oil lenses, etc. of the microscope.
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Cleaning system for air-conditioning equipment and tools in the kindergartenThe following is the kindergarten's air-conditioning equipment and tools cleaning system:
1. ** Daily cleaning and maintenance **
- Each class nurse is responsible for the cleaning and maintenance of the air conditioner in the class. The air conditioner dust-proof net and windshield must be cleaned once a week and records must be made.
- Before using the air conditioner, ask the logistics staff to check it in early summer. If there is a need for maintenance or a lack of snow seeds, report it in time.
- Set the temperature of the air conditioner reasonably. At the same time, when the air conditioner is turned on, the fan blades should not be blowing at the child. It is best to flip the fan blades up and down.
2. ** Regular inspection and thorough cleaning **
- A comprehensive inspection of the air conditioner was carried out every quarter, including the cleaning of the filter screen and the removal of dust from the internal and external units to ensure the air quality.
- During the change of seasons, professional cleaning was carried out at least twice a year. During cleaning, the internal parts of the air conditioner, such as fan blades, circuit boards, etc., should be checked to ensure that they were functioning normally. Also pay attention to the internal boiler, wheels and other parts that are prone to dust and bacteria. You can use professional cleaning tools to thoroughly clean them.
- Clean the condensing water pipes after summer to prevent bacteria from breeding.
- Clean or inspect the relevant components in the air handling unit regularly, such as cleaning or replacing the primary filter every two months.(Pressure difference gauge <130Pa), clean or replace the filter every 4 months (Pressure difference gauge <250Pa); check whether the air valve can rotate flexibly every month (add oil and grease if necessary), check the heat and sound of the motor, etc.; check the smoothness of the belt wheel every three months, add oil to the bearing, check and clean the vibration of the fan, check the water pan inside the unit and clean the condensed water pan to ensure smooth drainage, check the electrical components and clean up the dust, etc.; Clean the water filter every year (ensure that the water pressure is the standard pressure difference of the unit and there is no blockage), check all oil seals and water seals (replace them if necessary), check the water pump impellers and clean the impellers and pump chambers, etc.
3. ** Maintaining during use **
- The best setting temperature for the air conditioner was 26 ° C. The air conditioner could only be turned on when the indoor temperature exceeded 30 ° C. When the door and window were closed after the air conditioner was turned on, the indoor and outdoor temperature difference could not exceed 10 ° C. Before turning on the air conditioner, open the window for ventilation for 15 minutes. If the air conditioner is used continuously for two hours, the ventilation should be 10 - 20 minutes. Turn on the air conditioner 10 minutes before the child enters the classroom. Turn off the air conditioner 10 minutes before outdoor activities and open the window for ventilation.
- Make full use of the air conditioner's moisture removal function, and set the usage mode to the "moisture removal" state.
- As the air in the air-conditioned room is relatively dry, it is necessary to replenish the water for the child in time and strengthen the care of the dry skin. In addition, when entering and leaving the air-conditioned room, you should add or remove clothes for the child at any time. After the child sweats, you can't directly enter the cooling room. You have to wait until there is no sweat before entering. Do not let the child stay in the air-conditioned room for a long time. The outdoor game activities and indoor activities should be alternated.
4. ** Cleaning Management Supervisor **
- The kindergarten's monthly hygiene assessment included the weekly air conditioner spot checks.
- Teachers and caretakers could be taught simple operation and cleaning techniques regularly to better maintain the air-conditioning equipment.
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2024-11-21 09:08