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How to carry out environmental protection education in junior high school physics teaching
First, junior high school physics teaching and environmental protection are inseparable.

The Physics Curriculum Standard for full-time compulsory education (hereinafter referred to as the Standard) attaches great importance to environmental protection, which is reflected in:

1. The objectives of the environmental protection course are: ① "Understand the relationship between resource utilization and environmental protection"; ② "Preliminary understanding of the relationship between energy utilization and environmental protection"; ③ Have a preliminary understanding of the impact of science and its related technologies on social development, natural environment and human life, have a sense of sustainable development, and can contribute to the sustainable development of society within their own capabilities.

2. Environmental protection standards in content standards

(1) put forward in the Form and Change of Matter: ① "There is a sense of evaluating the positive and negative effects of a substance on people and the environment. Try to exchange views with your classmates on the use of local environmental resources. " Example 2: Discuss the effects of plastics, fertilizers, detergents, mosquito-killing tablets and pesticides on human beings and the environment. ② "Try to express my views on the ambient temperature". Example 5: I tried to express my views on the greenhouse effect and the heat island effect. ③ Have the consciousness of saving water.

(2) New materials and their applications put forward the idea of "environmental awareness and rational use of resources". Example 3 is given. Visit factories that produce certain materials (such as building materials and plastics). ), understand the production process and application of these materials, investigate the possible environmental pollution caused by the production of these materials, and put forward ideas to control these pollution.

(3) In the process of movement and interaction, put forward "know how to prevent and control noise". Example 4 is listed. Give examples to illustrate how to prevent noise in buildings.

(4) In the field of electricity and magnetism, it is proposed to "understand the application of electromagnetic wave and its influence on human life and social development".

Compared with the previous physics syllabus, the standard has raised the goal and content standard of environmental protection to an unprecedented height.

Second, environmental education is the need for students to "go from physics to society"

Our students should move from life to physics and from physics to society. Nowadays, science and technology based on physics are developing rapidly, and new materials and products are everywhere. While enjoying high technology, people also find that the negative effects brought by these new materials and technologies can not be ignored. So, what are the main physical contamination in our life? What harm will it bring to people?

1. Electromagnetic aspects

Radio transmitters (radios, TV transmitters, radar systems, mobile communication systems), and commonly used televisions, mobile phones, computers, microwave ovens, fluorescent lamps, etc. , can bring electromagnetic pollution, often causing dizziness, memory loss, poor sleep, fatigue, headache, blood pressure increase or decrease and other symptoms, which has directly threatened human health.

2. Acoustics

Noise pollution makes people feel bored, tinnitus, headache, insomnia, nausea, palpitation, blurred vision, dysphagia, severe liver and stomach dysfunction, numbness of limbs and oppression in the chest.

3. Matter and its morphology

(1) old batteries abandoned on various instruments and meters, fluorescent screens of computers and televisions; Littering, all kinds of rubbish, discarded plastic paper and thermal insulation plastic bags ... all these will cause solid waste pollution.

(two) the waste gas produced in the production and combustion process of industrial and mining enterprises is directly discharged into the atmosphere; Various stoves for residents to cook and burn garbage directly emit smoke and dust into the air; All kinds of motor vehicles directly emit exhaust gas into the air ... These exhaust gases are usually toxic and harmful. They will produce waste gas pollution, and the threat to human beings should not be underestimated.

(3) pesticide plant, paper mills, fertilizer plants, pharmaceutical factories, chemical plants and garbage disposal plants ... discharge a large amount of toxic and harmful wastewater into fields, fields, rivers and lakes. Water pollution leads to crop yield reduction; Difficulties in drinking water for people and livestock; Fish died in large numbers.

(4) The nuclear pollution caused by atomic energy is even more terrible, which can not only destroy human beings, but also threaten the survival of other animals and plants.

4. Optical aspects

Modern ballroom is an important place for people to relax. There are flashing and rotating colored lights, low-energy colored lasers and black lights everywhere in the ballroom. The searchlights and neon lights that decorate the city at night will cause light pollution.

The above questions are shocking! Life inspires us to strengthen environmental education, which is an unshirkable responsibility and urgent task in physics teaching.

Third, how to infiltrate environmental education in physics teaching

1. Cultivate students' environmental awareness imperceptibly.

(1) In physics class, especially in front of students, teachers must not pollute the environment, such as smoking and spitting. Don't throw the chalk heads around casually, but put them in special boxes, which can subtly cultivate students' awareness of environmental protection.

(2) Whether the teacher does the physics demonstration experiment or the students do the experiment themselves, the instruments and supplies should be put in order before the experiment. Especially in students' experiments, teachers must emphasize precautions or taboos. Teachers should set a good example for students and let them form a good habit of caring for the environment.

(3) Teachers should be strict with themselves and care for the environment when leading students to explore outdoor physics, such as visiting, visiting and conducting investigations. Carry a plastic bag with you. You can put all your drinking mineral water bottles, used food bags, cigarette butts, peels and waste paper into plastic bags and put them in the trash can. And all students are required to do so, which will also play a subtle role in students' going to society and caring for the environment in the future.

2. Start from the little things around you and take care of the environment.

(1) Students are required not to litter indoors or outdoors. And when conditions permit, garbage can be packed into different garbage bins according to domestic garbage and construction garbage-to prevent solid pollution.

(2) Ask students to speak softly in the classroom, walk softly, close the door softly, and don't turn up the volume of audio equipment at home, especially when others are resting.

(3) Encourage students to use less disposable pens, chopsticks and plastic tableware, and less plastic bags. Encourage students and families to use more environmentally friendly food, materials and articles, and carry out activities to collect used batteries and hand them over to the environmental protection department for disposal. Carry out activities to repair the old and make use of the waste, such as: making a convex lens that can be used as a magnifying glass with waste light bulbs; Using waste cans to make earth phones and pinhole imaging devices; Making measuring cylinder with mineral water bottle; Demonstrate the internal pressure of liquid with a plastic bag filled with water; Experiment with carbon rods and waste plastics taken from waste batteries ... this not only reduces environmental pollution, but also strengthens physics learning.

(4) Ask students not to enter the ballroom, watch less TV and play less computer games-to prevent light pollution and electromagnetic pollution.

(5) Remind students not to set off fireworks and firecrackers during the Spring Festival holiday, not to ignite garbage at ordinary times, and not to dump liquefied gas residues in residential areas to prevent air pollution.

(6) Organize students to visit local sewage treatment plants to learn about the main sewage treatment methods. Engage in some water-saving scheme design competitions. Visit factories that produce certain materials (such as building materials and plastics). ), understand the production process and application of these materials, investigate the possible environmental pollution caused by the production of these materials, and put forward ideas to control these pollution.

(7) Investigate the noise pollution in the community (or school) and the prevention measures taken, and put forward suggestions for further prevention and control of noise. Participate in the annual afforestation activities-it can purify the air and absorb noise.

Environmental protection education in physics teaching has a long way to go, and I will pursue it from top to bottom!