Teaching objectives:

1, so that students can understand the hazards of domestic garbage and enhance their awareness of environmental protection.

2. By discussing the harmfulness of domestic garbage, the necessity of garbage classification is introduced to cultivate students' practical ability.

3. Let students understand that garbage can be recycled after classification. Cultivate students' correct values.

Teaching focus:

1, understand the hazards of domestic garbage and learn the garbage classification method.

2. Understand the necessity of garbage classification.

3. Enhance students' awareness of environmental protection.

Teaching difficulties: how to make students take practical actions in their daily lives and take the initiative to participate in environmental protection.

Types of garbage

1. Recyclable materials: mainly include waste paper, plastic, glass, metal, fabric and metal.

2. Kitchen waste: It mainly includes food waste such as leftovers, bones, vegetable roots and leaves. Biotechnology can produce 0.3 tons of organic fertilizer per ton by in-situ treatment of compost.

3. Hazardous wastes: mainly including waste batteries, waste fluorescent tubes, waste water silver thermometers, expired drugs, etc.

4. Other garbage: refers to garbage that cannot be recycled temporarily.

Extended data:

Importance of garbage classification:

Save resources; Do not waste; Make the city more beautiful.

1, reducing land occupation: some substances in domestic garbage are not easy to degrade, which makes the land seriously eroded. Garbage classification, removing recyclable and non-degradable substances, reducing the amount of garbage by more than 50%.

2. Reduce environmental pollution: waste batteries contain toxic substances such as mercury and cadmium, which will cause serious harm to human body; Waste plastics in soil will lead to crop yield reduction; Waste plastics are eaten by animals by mistake, resulting in accidents of animal death. So recycling can reduce the harm.

3. Turning waste into treasure: China uses 4 billion plastic snack boxes and 500-700 million instant noodle bowls every year, and waste plastic accounts for 4-7% of domestic garbage. 1 ton of waste plastics can recover 600kg of diesel oil. Recycling 1500 tons of waste paper can avoid cutting down trees used to produce 1200 tons of paper. A ton of cans can be melted to form a ton of good aluminum blocks, and 20 tons of aluminum ore can be mined less. 30%-40% of the production waste can be recycled, so we should cherish this small-scale and large-scale resource. You can also use cans as pencil boxes, which is environmentally friendly and saves resources.

2. Find a scientific teaching plan for the large class of garbage classification "wet garbage" (kitchen waste)

moving target

Understand the meaning of "garbage classification"

Understand the classification of garbage

Can learn garbage classification in daily life and improve the ability of analysis, classification and comparison.

Important and difficult

Key points: Understand the simple classification of garbage and understand the meaning of "garbage classification"

Difficulty: classified treatment of domestic waste.

Activities to be prepared

Experience preparation: I have done waste battery landfill and flower cultivation experiments.

Material preparation: making pulp tools, physical garbage and three trash cans, video recorder, paper and watercolor pens.

Activity process

First, lead to the topic

Question: What is garbage? Why do sanitation workers clean up garbage every day? What should we do with the rubbish we picked up today? Why?

Second, understand the corruption and reuse of different garbage.

1. Understanding organic waste

① Question: What will be the use of garbage such as vegetable leaves after rotting (learning word: organic garbage)? What else is organic garbage?

② Watch the video 1, recall the changes of vegetable leaves, and understand that garbage such as vegetable leaves will rot in the soil, and these garbage can slowly become fertilizer, so that other plants can grow better.

2. Know the harmful and toxic garbage

① Watch video 2, observe the changes of plastic bags, and compare them with the changes of vegetable leaves, and draw the conclusion that plastic bags will not rot, but will only accumulate and pollute the environment, causing white pollution, which will be dangerous for animals to eat carelessly. We call these rubbish hazardous waste, so we should try not to use them or use them less to protect the environment.

② Question: We children all know that there is another kind of garbage that is poisonous. Who will talk about the harm of waste batteries to us?

(3) Watch video 3 to understand the toxicity of waste batteries and know that batteries need special treatment.

④ Question: What other toxic and hazardous wastes are there?

3. Children observe the teacher doing pulp experiments and know about recyclable garbage.

Question: What did the teacher do? What did you find?

The conclusion is that paper can be converted into pulp to make new paper, and paper can be recycled. (Learning word: recyclable garbage)

Question: What else can be recycled?

Third, garbage classification.

1. Let children design signs of organic waste, toxic harmful waste and recyclable waste.

2. Let the children sort the garbage into three buckets.

Activity expansion

Let the children find some junk information that cannot be classified. Put the garbage sorting bucket in the corner of the activity room to help children continue to learn to sort and dispose of garbage in their daily lives.

Activity evaluation

I. Design Intention

This lesson is the theme activity-the third activity in garbage. We have done two experiments before, so this lesson is the summary of the whole theme activity and the refinement of key contents. In this activity, we mainly recall the experimental process, results and do experiments by watching videos. This is mainly due to children's intuition about things and their great interest in watching videos and doing experiments. Some children asked me when I could watch the experimental video. Visual video can attract children's attention and attach great importance to the content. At the same time, the experiment is highly operational and practical, which allows children to gain common sense about garbage through personal experience. This lesson focuses on cognition and skills, mainly to let children know the different characteristics of garbage, so as to learn garbage classification.

Second, the effect analysis

Through this teaching activity, the first two experimental activities are summarized. Children have learned more about garbage, different garbage disposal methods and simple classification. In the activity, the teaching methods of video and experiment make the classroom atmosphere very active, and the children think positively and speak boldly, while the group teaching gives the children more opportunities to speak. The design of garbage classification sign map gives children the opportunity to actively participate and continue to think, and the teaching effect is good!

3. What are the tips for garbage sorting?

Benefits of garbage sorting

The benefits of garbage sorting are obvious. After sorting, the garbage is sent to the factory instead of landfill, which not only saves land, but also avoids the pollution caused by landfill or incineration, and can also turn waste into treasure. For example, waste batteries called "mini killers" all contain heavy metals such as mercury or cadmium. If these heavy metals are left underground, they can easily leach into groundwater through rainwater, causing serious persecution to water resources and land. The waste battery contains a variety of useful metal minerals, and its recycling value is very high. It is precisely because of the serious harm and special recycling value of waste batteries that many countries prohibit them from being mixed with garbage. Japanese communities have this kind of yellow bucket, which separates button cell from others. Another example is biological waste such as leftover lettuce and eggshell skin, and kitchen waste such as picked Chinese cabbage leaves, but they can all be used as good organic fertilizers. Like this big nano-dream biological waste processor in Huaibai community, biological waste can be dried and crushed to make efficient organic fertilizer. Residents can use it to grow flowers and grass. Compared with fertilizer food, vegetables grown with them are safe and healthy, and are quite popular in supermarkets. Biological waste usually accounts for 40% of the total waste. If all of them can be turned into organic fertilizers, it can not only save land for landfill, but also save vehicles and energy for transporting them and prevent them from breeding mosquitoes, flies and bacteria.

So garbage sorting has many advantages.

Introduce the environmental protection classified trash can.

Generally speaking, the common environmentally-friendly classified trash cans are divided into green, yellow and red.

Green is used to put recyclable garbage, recyclable garbage: paper, plastic, rubber, metal, glass and so on.

Yellow is non-recyclable garbage, non-recyclable garbage: mainly kitchen garbage, including peels and vegetables.

Skin, leftovers, etc.

Red toxic and hazardous wastes: batteries, fluorescent tubes, mercury thermometers,

Paint bucket, medicine, cosmetics, etc.

Slogans about garbage sorting

1. Garbage sorting has many benefits, and environmental protection depends on you and me. Please find a suitable home for garbage.

3. To turn waste into treasure, classified recycling is indispensable. If everyone has a classified heart, garbage can also be turned into gold. 5. Garbage sorting is easy.

6. If the garbage is divided, the environment will be beautiful.

7. Simple and sustainable sources of resources.

8. Throw away the "white pollution" and turn it into a "white resource". Cultivate civilized dining habits and reduce kitchen waste 10. Garbage children should be separated and live and work in peace.

4. Big class: How to deal with garbage

Activity target 1. Through practical activities, children know where the garbage in the surrounding environment comes from and its harm.

2. Inspire children to think positively about environmental sanitation solutions and express them in different ways.

3. Guide the children in large classes to do what they can to maintain environmental hygiene.

Activity preparation 1. Before class, let the children work in pairs, investigate and record in their own way, and collect the garbage distribution in the surrounding environment.

2. A few slides and a projector.

3. Children's operating materials: plasticine, building blocks, drawing paper and pens.

Activity process

First, organize exchanges and inspect the surrounding environment.

Yang: Waste paper and plastic bags were found on the grass.

Teenager: There are seeds, peels and other sundries on the playground.

There are napkins, drawing paper and so on in the classroom.

Young: Because people don't pay attention to environmental hygiene, they throw rubbish everywhere.

Young:

Second, understand the harm of garbage to the environment, people and animals and plants.

Yang: When you see someone throwing garbage, you should discourage them from throwing garbage.

Yang: We should learn from workers' uncles and invent more machines and equipment. Purify our environment.

Fourth, the teacher shows all kinds of materials for children to operate.

Teacher: Use these materials to make or draw your ideas and good ideas and introduce them to teachers and peers.

Yang: Fifthly, the teacher introduced the "recycling bin", which led to a new problem. The teacher also made something called "Beibei recycling box", which is specially used to put recyclable waste products. Show the garbage collected by children, that is, the garbage collected by everyone during the investigation, and see what they have. Who knows what can and can't be recycled? Let's tidy up after class. Sixth, the activity extended to introduce recyclable waste products to children and discuss with them where to put the recycling bins. Chen Xiaohua erling central kindergarten

5. How to divide large-scale scientific waste into recyclable and non-recyclable lesson plans?

I. Activity objectives

1, know the relationship between garbage and life and the role of recycling garbage.

2. Try to classify the garbage.

3. Learn to classify garbage in daily life, improve the ability of analysis, classification and comparison, sprout initial awareness of environmental protection, and know the important performance of environmental protection.

Second, understand the corruption and reuse of different garbage.

1, understanding organic waste

2. Know the harmful and toxic garbage.

Third, garbage classification.

1, let the children watch the video clip about the garbage sorting and recycling process, and then talk about where the garbage truck sends the garbage and what new products can be made after garbage recycling.

2. Know the sign of "recycling".

6. Implementing household waste separation in kindergarten classes.

Goal:

1. Understand the meaning of \ "garbage classification \" and establish environmental awareness.

2. Cultivate the ability of observation, analysis, comparison and classification.

Prepare:

1. "Jiangshan" and "Hecun" are made of waste foam, plastic blocks and other materials, among which some rubbish is scattered.

2. All kinds of physical garbage, such as banana peels, waste paper boxes, empty cans, mineral water bottles, wine bottles, broken light bulbs and pesticides, nail polish, mousse bottles, etc.

3.5 Garbage sub-packaging bucket, with five signs. 4. Video recorders and videos about garbage disposal.

5. Some magnetic pictures and some disposable plastic gloves.

Process:

1. Select \ "Sanitary City \" 1. Guide children to observe and compare the environment between the two places, and inspire children to say: which city do you like? What is this? If you live in Hecun, how do you feel?

2. Let the children stick a five-pointed star to choose a "healthy city".

3. Guide children to discuss: Why don't you choose the village? How would you feel if you lived in Hecun?

4. Teacher's summary: Hecun is full of rubbish, which is dirty and smelly, and everyone doesn't like it. The mountains and rivers are neat and orderly and popular. Do you want to know where all the rubbish in this city has gone? Let's watch the video together.

Second, understand the method of garbage classification and recycling 1. The teacher with an explanation asked the children to watch the video clips about the garbage sorting and recycling process, and then talked about where the garbage truck sent the garbage and what new products could be made after garbage recycling.

2. Understand the "recycling" sign.

Show the sign of "recycling" and let the children guess the meaning of the sign according to the picture, and talk about where they have seen the sign.

Explain the meaning of the "recycling" sign and ask children to say: What items can be recycled in the garbage? Why? Paper, glass bottles, cans and mineral water bottles can all be processed into new products. (3) Inspire children to design a "no recycling" sign, and talk about: What items in garbage can't be recycled? Why? What should we do with the garbage? (Burn or bury deeply. (4) Classify the magnetic garbage pictures on the blackboard into recyclable and non-recyclable, and the teacher will check the classification of children.

The teacher concluded: If we can recycle these items, we can purify the environment and protect resources.

3. Game: See who did it right. The teacher said a garbage name, if it can be recycled, children will do similar actions; If it can't be recycled, make something like an "X".

Third, further classify the garbage that may be recycled 1. Organize children to discuss: How can we make the workers' uncles handle these recyclable wastes better and more conveniently?

2. Show five marked garbage and put them in the bucket, and ask individual children to sort the garbage according to the signs.

3. Organize children to wear gloves to clean up the garbage in Hecun and classify it.

7. Reflection on the teaching of kindergarten science (garbage classification is my best).

moving target

1. Know the relationship between garbage and life and the role of garbage recycling.

2. Try to classify the garbage.

3. Learn to classify and place the garbage in daily life, improve the ability of analysis, classification and comparison, sprout the initial awareness of environmental protection, and know the important performance of environmental protection.

Activity preparation 1. Experience preparation: I have done experiments on landfill and flower cultivation of waste batteries. 2. Material preparation: I recorded the process of making pulp tools, physical garbage and three trash cans, video recorders, paper and watercolor pens. 1. Introduction Question: What is garbage? Why do sanitation workers clean up garbage every day? What should we do with the rubbish we picked up today? Why?

Second, understand the corruption and reuse of different garbage 1. Understand organic garbage ① Question: What will be the use of garbage such as vegetable leaves after rotting? (Learning word: organic garbage) What else is organic garbage?