On environmental chemistry and home economic

Lee Town located in the Yellow River, is the security of supplies and sporting goods manufacturing base, is the famous "rope of the town." Rope of raw materials --- "plastics" mainly by adding materials such as polyethylene or polypropylene made of a variety of organic solvents. "plastic" in great danger, in the production process can easily lead to a range of environmental issues and many students graduate into the plant, how to enhance their sense of self-protection? how to protect surrounding environment? in teaching, enhance student awareness of environmental protection, establish environmental protection, sustainable development, building a better home the idea that chemical educators can not shirk the responsibility era. with the actual physical and mental development of students and the local economy in the form of features, I think we can explore the following areas.

First, extension materials, penetration of environmental awareness
Lu taught junior high school chemistry book in the first edition of "stay away from toxic substances," the knowledge, after the introduction in the study of "carbon monoxide" knowledge of carbon monoxide is a colorless, odorless, insoluble in water, gas, and therefore easily overlooked walls poisoning. common in the case of poor ventilation, carbon monoxide poisoning by inhalation walls.

Principles of poisoning: Carbon monoxide binding with hemoglobin than oxygen binding with hemoglobin 200 to 300 times larger, and the dissociation of carboxyhemoglobin and hemoglobin than oxygen about 3600 times slower due to the CO and blood hemoglobin generated HBCO presence of oxygen and prevent the formation of hemoglobin and normal separation, resulting in the loss of hemoglobin O2 and CO2 transfer of the physiological role of the blood's oxygen-occurring disorders, poisoning caused by hypoxia and asphyxia. poisoning symptoms: 1. mild poisoning. may present with headache, dizziness, insomnia, malaise, tachycardia, syncope and other short-term symptoms.

2 moderate symptoms in addition to the above symptoms, the lips, nails, skin and mucosa of cherry red, temporary separation of sensory and motor.

3 severe symptoms in patients with rapidly into a coma. Early limb muscle tension increases, mandatory or paroxysmal spasms, muscle tension significantly reduced the late, pale or cyanotic patients, blood pressure, dilated pupils, and finally due to respiratory paralysis death.

Emergency Treatment: Immediately move the patient ventilation, fresh air, unlock the collar, eliminating respiratory secretions, keeping the airway open.

Preventive measures: (1) Strengthen prevention campaigns Keep plants well ventilated to prevent leakage of chimney smoke, smoke down.

2. Earnestly implement the safety systems and procedures, strengthen wire drawing plant maintenance, must have good ventilation, and to strengthen the monitoring of carbon monoxide in the air.

In teaching activities, students understand the current state of the planet, to understand the environmental conditions, understanding the environment around them, help the non-intellectual quality of students in chemistry class in the actual local infiltration of environmental awareness, to arouse students interest and enhance the usefulness of the disciplines, while students hands-on, personally involved, not only to broaden their knowledge and grasp of looking at things, ask questions, analyze and solve problems of scientific method, and reflect the main principles of quality education and practical principles in the education sector vigorously promote quality education in China today, it is absolutely necessary to train students in environmental awareness as an important goal of teaching chemistry. Links to free download http://www . hi138.com Second, experimental teaching, promote environmental education
As a chemistry teacher, to make use of experimental teaching, allowing students to participate in environmental practice.

First, the experiment used to train students such as in a closed fume hood or toxic gases, the exhaust gas after the absorption of reaction, to prevent its spread into the air. The reaction of the waste, waste is not random into the pool, and is the separation and recovery, so that students develop good environmental habits.

Secondly, we must help students learn from the environmental point of design, improvement, selection of experimental program, select the experimental drug, to enable students to maximize the use of some non-toxic, low pollution, low energy consumption of the experimental program, select the number of non-polluting, recyclable, recycling of drugs, which students in scientific experiments and environmental awareness on industrial production course students environmental practice on the premise that teachers should develop good habits.

Currently, all types of schools or education authorities, calls for high school chemistry experiment to improve one of its objectives is to enhance environmental awareness, which requires chemistry teachers first develop good environmental habits, set a good example to the students in the experiment how to ensure non-proliferation of toxic substances into the air, the exhaust gas to absorb, such as how to deal with waste after the reaction, almost every experiment will encounter problems, the chemical treatment used to correct teachers will influence the students so that they develop good experimental practices, and gradually develop their environmental awareness.

Third, extra-curricular activities, the concept of environmental protection
Chemistry teachers should actively organize students to go out to visit, in order to enhance students' environmental awareness can be use as a holiday, organized students to plant and contaminated the town's river, etc. visit, with factory workers and technical staff and the residents around the river conversation, clearly the dangers of environmental pollution and the urgency of protecting the environment through on-site comparison, with the knowledge already learned, to carry out the environmental pollution and protection of the quiz, for example, air pollution caused by the main substance? way to control ?, etc. in order to enhance student interest in learning, and for the future and lay a good foundation of environmental protection through such extra-curricular activities for students in environmental activities, the first line, the usual chemical knowledge learned to use the real office, personally participate in environmental activities , so true to appreciate the enormity of the task environment, conducive to passive students to spontaneously develop environmental awareness, the initiative to develop their environmental awareness.

To the beautiful planet, the most urgent task is teaching chemistry through courses, extracurricular activities and other ways to nurture good environmental awareness and improve the level of environmental awareness, so that they know how to protect the environment, care for common planet, the health of humanity happy life is the bounden duty of every person. Links to free download http://www.hi138.com