The law of sanitation security mainly from the summary of sanitation security and sanitation construction, to explore the basic laws of sanitation and specific laws to enhance the scientific prediction for the construction of sanitation and security decision-making to provide a scientific basis.
The organization of the military health department organization system established by the organizational system and the corresponding system for the organization of the use of health forces to provide a theoretical basis, play the role of health manpower and material resources to improve the efficiency and effectiveness of the work. The guidelines, policies, principles and regulations of the army's health work from the actual situation of the army, so that the health work can follow the rules and regulations.
Various conditions of the army sanitary security measures high-tech weapons and equipment in the extensive use of the war so that the security of many new features and new requirements, should strengthen the special geographical conditions of combat, non-linear combat sanitary security, sanitation attrition laws and characteristics of war injuries and other items of research, put forward the organization of the implementation of the security of the security of the implementation of the method to play a role in the theory of medicine, technology and sanitation equipment, and constantly improve the security capacity. The researchers will also be able to improve the capability of health care support.
2. troops health service science lesson plan
Tell the outline format it:, training subject - "unarmed single-handed formation training" two, training purpose - through training to make ... ... three, training content - through training to make ... ... Third, the training content - at ease, stand, stop between turning ...... Fourth, training - the whole class unified training V, training focus -- to improve the accuracy of the corrective habits of work six, requirements -- 1, listen to the command seriously
100 meters, troops \ lesson plans
Tell the outline format it: , training subjects -
The "single-handed parade", the "single-handed parade", the "single-handed parade", the "single-handed parade", the "single-handed parade", the "single-handed parade" and "single-handed parade". - "unarmed single-handed formation training" two, training purposes - through training to make ...... three, training content - at ease, standing, stopping between turn ...... Fourth, training - the whole class unified training V, training focus - to improve the accuracy of the corrective habits of work VI, requirements - 1, listening to the clear command serious and serious. -1, listen to the command seriously
3. General knowledge about hygiene and health
In winter, there are a lot of long-distance running.
As we all know, long-distance running is a full-body exercise program, consuming energy, exercise effect, and winter long-distance running exercise more benefits. Long-distance running can clean up the body's waste Winter temperatures are lower, long-distance running can *** body protective reaction, blood circulation accelerated, accelerated blood flow in the brain, improve the brain temperature center regulating ability, so as to supply the brain with more nutrients, so that the brain is more awake.
Winter long-distance running, the brain's memory function has enhanced. Winter long-distance running can also enhance the function of the cardiovascular system and respiratory system, promote the muscles, bone marrow, nerves and organs of the healthy work, so as to improve the body's ability to resist disease, the most obvious effect is the prevention of influenza.
Winter long-distance running on the excretory system of harmful substances can also play a role in cleaning. According to the test, 16 minutes to run 3,000 meters or 25 minutes to run 5,000 meters, can reduce blood cholesterol.
This is a different degree of hyperlipidemia and vascular sclerosis, coronary heart disease, cerebrovascular disease, etc., has a good preventive effect. In addition, long-distance running makes people emotionally full and optimistic, relaxed, and helps to improve appetite, long-distance running can also strengthen the digestive function, and promote the absorption of nutrients.
Insisting on long-distance running in cold weather also helps to exercise willpower. The winter long run don't wear too thick Because of the low temperature in winter, in the long run exercise, should pay attention to the following aspects of the problem.
Before the long-distance running, be sure to do a good job of preparation activities. Do some activities of the knee, ankle, shoulder joints gymnastics, or jogging a period of time, to be the whole body's blood circulation has been improved, the upper limbs of the sweat before the official long-distance running.
Don't wear too many clothes, don't wear cotton clothes, so as not to run in the body heat, underwear sweat wet, cold wind ***, caused by cold and muscle joint pain. Winter long-distance running should pay attention to the weather, winter fog more, remember not to exercise in the fog, the fog contains acid, alkali, salt, benzene, amine and other harmful substances.
Inhalation of the lungs, so that the alveoli of the oxygen supply is insufficient to cause chest tightness, severe cases will cause bronchitis or some allergic diseases. Winter long-distance running can not stop immediately after long-distance running, master the correct breathing method is very important.
At the beginning of the run, especially when running against the wind, you should use the nose to breathe or nasal inhalation and oral exhalation, because the nasal cavity can reduce the cold air on the throat ***; at the same time, the mucus in the nasal cavity of the air has a filtering and purifying effect. When running faster, in order to take in more oxygen, you need to use the mouth and nose to breathe.
Curl your tongue slightly against your palate and breathe in through your nose and teeth. Do not open your mouth wide to gasp for air, as this tends to fatigue the respiratory muscles and can lead to coughing, bronchitis and abdominal pain.
Breathing should be even and rhythmic, two steps, one inhalation, two steps, one exhalation, or three steps, one inhalation, three steps, one exhalation. In addition, running with the forefoot on the ground, it is best to wear a sponge sole rubber shoes, to avoid heel pain.
During the exercise, you should supplement some sports drinks containing vitamin C in a small amount of time. Winter long-distance running, do not stop immediately, should be jogging for a while, because at this time the blood is concentrated in the lower limbs, suddenly stopped, the blood can not be fully returned to the heart will cause "gravity shock".
Should also pay attention to timely warmth, ensure sleep, through ***, hot bath and other means to promote fatigue recovery. In short, more knowledge of winter running, can reduce the blindness of the exercise, so that the winter running exercise effect is better.
4. health service science professional can apply for a physician's license
No, according to the "physician qualification examination registration qualification provisions (2014 version)", basic medical class, forensic medicine, nursing (study) class, medical technology, pharmacy class, Chinese medicine class and other medical related professional, its education is not as the basis for the qualification of the physician's education.
Physician qualification examination conditions:
(a) with higher education undergraduate degree or above, under the guidance of a licensed physician, in the medical, preventive, health care institutions in the probationary period of one year, you can participate in the qualification examination of licensed physicians.
(B) after obtaining the practicing certificate of practicing physician assistant, with a higher school of medicine specialist education, in the medical, preventive, health care institutions for two years; with a secondary specialized school of medicine education, in the medical, preventive, health care institutions for five years, you can participate in the qualification examination of licensed medical practitioners.
(C) with a higher school of medicine or secondary specialized school medical education, under the guidance of a licensed physician, in the medical, preventive, health care institutions in the probationary period of one year, you can participate in the qualification examination for practicing physicians.
5. What is the knowledge about the health of elementary school students
1, wash your hands before and after meals; 2, to do three diligence: diligent bathing, diligent hairdressing, diligent change of clothes; 3, diligent nail clipping; 4, pay attention to reading and writing hygiene: eyes away from the book a foot away, the body away from the table a fist away, the hand away from the tip of the pen an inch away; 5, wash your hands at all times; 6, pay attention to the health of the eyes: do not read in the glare, do not read in the walking car, do not read, do not read in the walking car, do not read, do not read in the walking car, do not read, do not read in the walking car, do not read, do not read. Don't read in the walking car, don't read lying down, don't rub your eyes with dirty hands; 7, don't eat food without hygiene protection, don't eat food without cleaning, don't drink raw water; 8, morning and evening wash your face, wash your face with running water, don't use towels, washbasins and other items with other people's ****; 9, morning and evening brush your teeth, rinse your mouth after eating; 10, every day, insist on appropriate physical exercise to strengthen the physical condition, maintain a good, energetic What not to eat when you are sick 1, colds: bananas, oranges, asparagus juice, ice, mutton, ginger duck, alcohol and tobacco 2, cough: ice cream, oranges, fried, baked, spicy, peanuts, wine, sweets 3, acute gastritis: fried food, wine, chili, glutinous rice 4, chronic gastritis: cold food, sour fermented food! Food, sweets 5, enteritis: bananas, pomegranate 6, gastrointestinal flatulence: peanuts, sweet potatoes, egg fermentation, beans 7, acute and chronic hepatitis: (goose, chicken, duck) meat skin, fat pork, tobacco, alcohol, do not stay up too late 8, heart disease: binge drinking, high cholesterol, too salty food 9, kidney disease: beer, soda, salted fish, bamboo shoots, pickled vegetables 10, diabetes: sweet, alcohol, greasy, fried and roasted, high-calorie food 11, Low blood pressure: celery, it is advisable to go to bed early and exercise 12, hypertension: too salty foods, egg yolks, animal offal, cheese, animal oils, brain marrow 13, peptic ulcer: beans, bamboo shoots, pickles, glutinous rice products, wine, pineapples, chili peppers, guava 14, pregnancy: alcohol, cigarettes, coffee 15, bruxism osteochondritis: bananas, bamboo shoots, wine, sauerkraut, chili peppers 16, bruxism : pork head bone meat, vinegar, peanuts, Sweets, bananas, beer 17, hemorrhoids blood: tobacco, alcohol, chili peppers, fried 18, rheumatoid arthritis: beer, bananas, meat, to avoid cold dew rain 19, cerebral neurasthenia (insomnia): chili peppers, wine, coffee, green onions, garlic 20, allergy (urticaria, eczema, asthma, allergic rhinitis): seafood, taro, mango, ice, cinnamon, Ly 1, the clothes wear a long time to wear a rubbing of the place shiny how to do? Is to use half a cup of vinegar with half a cup of water to blend up, and then the mixture is applied to the shiny parts of the clothes.
Touch a little dry after another dressing, wait until the clothes are dry and then pad a clean cloth to low-temperature ironing, then you will find that the ironed clothes are not as bright as before. 2, simulation jewelry how not to lose color? When you buy back the beautiful jewelry, with colorless nail polish evenly coated in its surface, especially jewelry buttons are easy to be worn, more to be coated with a few layers to strengthen the protection.
Of course, this kind of freshness is a time limit, once the nail polish off to hurry to make up a layer, do not give it the opportunity to re-exposure to the air. 3, how to clean the kitchen screen? Take an aluminum basin, put 100 grams of flour, add water to make a thin batter, while hot, brush on both sides of the screen and wipe well.
After 10 minutes with a brush several times, and then rinse with water, grease is gone. 4, in the days of silk clothes how to collect? In order to prevent pressure wrinkles, the collection should be placed in the upper layer of the closet, put a few pieces of lining cloth on top, which can reduce the moisture into the closet.
Store silk clothes, do not use mothballs, or the clothes will turn yellow. Also note that do not mix cotton and silk clothing and real silk clothing together, so as not to make the real silk clothing discoloration.
5, how to remove clothes odor? We can use salt to deal with. Because salt can disinfect, sterilize, and prevent cotton from fading, so before wearing new clothes, it must be soaked clean with salt water.
6, how to prevent the home TV, stereo dust? Clothing softener to ten times the water dilution, and then use a paper towel or soft cloth dipped gently wipe the surface, then you will find that the dust is not as fast as before to adhere to the electrical appliances, which is mainly a soft essence of the role played by the anti-static. 7, how to anti-slip floor mats? Put a piece of plastic wrap under the mat, which increases the friction between the mat and the floor, and naturally will not slip.
8, how to prevent the sofa on the bamboo mat slip? Completely avoid is not very easy, but we have a method here you can try. Is the packaging of fruit, Styrofoam made of net, in some material market can buy large pieces, you cut it into the right size, and then pad to the bamboo mat and sofa between the effective increase in their friction, so that the bamboo mat will not be easy to fall down.
9, how to prevent cutting chili peppers not spicy hand? Use a little vinegar to rub your hands, chili peppers in the production of spicy substances called chili alkali, and vinegar is acidic, can neutralize the discomfort of chili alkali. You can also add a little ice water in the water basin to soak, but do not put too much ice.
Otherwise, it is too cold for our fingers to bear. 10, how to prevent the new board does not crack? The new board into the thick salt water soak 12 to 24 hours, and then rinse clean and then use it will not be easy to crack.
11, how to peel garlic? You can use plastic gloves for dishwashing, thicker gloves are better, because it is more astringent, friction can be peeled faster, that method is to put the garlic into the gloves, rubbing both. 12, how to remove the gum in the hair? Bathroom hair lotion smeared on the gum and hair, and then wrapped in a dry cloth or paper towel, gently run down, you can wipe off the gum from the hair.
13, the 502 universal glue on the clothes how to remove? You can use banana water drops on the glue stains, and then use a brush to keep brushing, such as softening the glue from the clothing off. Then rinse with water.
Banana water in the building materials store to buy. 14, sweat stains can make white shirt yellow, how can it become white? First use a sprayer to spray some diluted vinegar at the sweat stains, and then wash after a while, the effect is very good; if it is a serious yellowing of the armpits, you can soak the yellowing place in alcohol for half an hour to an hour, and then rub with soap, and then wash with water.
15, how to remove microwave odor? First use a sprayer in the sweat stains spray some diluted vinegar, after a while and then wash, the effect is very good; if the armpit yellowing serious place, you can soak the yellowing place in alcohol for half an hour to an hour, and then rubbed with soap, and then wash with water. 16, in the daily make-up, if the mascara or eyeliner painted outside the need of the part how to do? Dab a little baby lotion on a cotton swab and gently rub a few times, eyelids on the eyelashes.
6. Please ask elementary school students health tips
(a) the main content of elementary school health care 1. teaching health care Students' learning activities are mainly carried out through the classroom.
Therefore, the classroom teaching health care work in the school health care work occupies an important position. Attention to health problems in teaching is not only related to the growth and development of students, but also directly affects the quality of teaching.
Teaching hygiene mainly refers to the students' brain hygiene and eye hygiene. The potential power of the human brain is very large, but must be scientific brain to play its role.
In particular, the brain of elementary school students is in the stage of development and maturity, easy to excitement, but also easy to fatigue. If contrary to the laws of brain activity, so that students' brains are in a state of tension for a long time, will produce excessive fatigue phenomenon, the lesser concentration, slow thinking, dizziness, the heavier will lead to disorders of excitation and inhibition, headache and insomnia, mental depression, memory and attention to decline, and then neurasthenia, serious damage to students' health, so that the students' academic performance declined, and even can not adhere to the study. The first is to make sure that you have a good understanding of what you are doing and what you are doing.
Therefore, in the teaching must prevent and overcome the phenomenon of overburdened students. Students' eye health should also be given due attention.
If a student's eyesight is impaired, the nearer it is, the more difficult it will be for the student to learn, the more it will affect the student's reading effect and the degree of memory, the more it will affect the improvement of the student's power of observation, and the more it will limit the development of the student's intellect; the farther it is, the more it will cause difficulties for the student's work in the future, the more it will not be able to engage in certain professional work, and will limit his talent, and it will be a loss for the construction of the socialist society. There are many reasons for students to lose their eyesight, but one of the main reasons is that they do not pay attention to eye hygiene.
Such as reading time lasts too long, incorrect posture in reading and writing, insufficient light, inappropriate print, tables and stools. Therefore, the school should improve the lighting of the classroom under the possible conditions, and equip different types of desks and chairs for students of different grades, and at the same time, we should educate students to pay attention to eye hygiene, don't read for a long time, don't read in a place with insufficient light, and have a distance of 30 centimeters between your eyes and books when you are reading and writing, and do eye exercises regularly.
2. Personal hygiene and health care Students' personal diet and hygiene is also an important part of the school health care work. Most primary school students live at home, the key to good personal hygiene in the family.
In addition to working with parents, schools should also provide students with reasonable hygiene requirements and necessary guidance. If you want to eat on time, wash your hands before and after meals, don't eat on the road, don't eat and play, don't eat, don't drink raw water, don't eat rotten fruit, eat raw fruits and vegetables to be washed or sterilized, etc., especially pay attention to overcoming the students to eat snacks and other bad habits.
To educate students to keep their bodies clean. Every day before going to bed, after getting up to wash your face and brush your teeth, often cut your nails, and often take a bath if you have the conditions.
The cleanliness of the body can remove the parasitic conditions of bacteria and prevent disease. 3. environmental health school is the main place of activity for students, we must continue to beautify and green the campus, and improve the cleanliness of school buildings and equipment, so that the classroom, reading room, dormitories, toilets, dining room, playgrounds, and labor places and other equipment are clean and sanitary.
The school should establish a sound environmental health system, generally should be a small sweep every day, a weekly cleaning. 4. Reasonable work and rest system Reasonable work and rest system is to ensure that students have regular study, labor and rest, so that they can grow up healthy conditions.
The development of school life and work system, according to the teaching program, taking into account the students' learning, recreation, sleep, rest and other aspects, but also suitable for the age of the students. The school life and work system is mainly reflected in the curriculum and work and rest schedule, which includes the study time of each subject, the extracurricular activities (physical exercise, social activities, extracurricular group activities, etc.) of the time regulations, diet, sleep and rest time arrangements, etc.
It is necessary to ensure that the school life and work system is in accordance with the teaching program, taking into account the needs of students.
It is important to ensure that students have enough sleep time. Sleep is a basic physiological requirement to eliminate fatigue and protect health.
Primary school students should have about ten hours of sleep time, to educate students to develop good sleep habits. Such as early to bed and early to rise, wash your face and feet before going to bed, do not eat before going to bed, do not lie in bed to read and talk and so on.
Special attention should be paid to ensure that students are supplied with breakfast. Generally speaking, students who do not have enough breakfast intake will affect the learning of the third and fourth classes in the morning.
According to a survey by the health department, it is noteworthy that the calories consumed by students in sports, labor and learning activities now exceed the calories ingested. Studies have shown that eating a calorie-rich breakfast is positive for focusing students' attention and improving their mental state.
Schools that are in a position to do so can add an early breakfast after the second class. (ii) how to do a good job of health care for elementary school students The school principal, the director of teaching and every teacher has the responsibility to do a good job of school health care.
But in order to have someone specifically responsible for, large schools should have a full-time school nurse or health teacher; small schools can hire the nearby hospital doctor as a school nurse, or designate a teacher is responsible for the school's health care work, to assist the principal to supervise and check the school's environmental equipment to meet the hygiene conditions, and to organize the whole school teachers and students to carry out patriotic health activities. To do a good job of health care for elementary school students, should pay attention to the following points.
1. Publicity and education for health care often explain to students some of the basic knowledge of physiological health and public **** hygiene, disease prevention measures and requirements, educate students to master some of the common diseases of the medical knowledge and treatment methods. To carry out publicity and education on health care should be combined with the patriotic health movement.
The publicity of different contents can be carried out according to the prevalence of diseases in different seasons, such as the publicity of dietary hygiene in summer and the publicity of cold prevention in winter. The way of publicity should be varied, can use radio, slides, movies, pictures, blackboard newspaper, etc., can also organize health exhibitions or lectures.
Some schools use microscopes to organize students to observe bacteria in rotting food and nails, which has achieved good publicity. 2. Establish a variety of health care system Cultivate students' good health habits, in addition to the establishment of a reasonable system of work and rest, cleanliness and hygiene system, but also regular physical examination of students, the establishment of students' health card, found that the disease timely treatment.
The students' personal hygiene should be checked every day, and can carry out evaluation and competition activities, and award the health red flag, in order to improve the students' enthusiasm and initiative in health care. 3. Carry out the "Junior Red Ten.
7. health tips There are also learning methods
High school math learning mnemonic According to years of practice, summing up the laws of complexity and simplicity; summarize the knowledge of the difficult to easy, high school math clever memory.
It's easy to say what you want to say, and it's easy to say what you want to say, and it's easy to say what you want to say. The first thing that comes out is the ugly shape, and the throw of a brick leads to the white jade.
"*** and functions" content sub-intersection and complementary sets, and power refers to the function. The nature of the parity and increase or decrease, the most obvious observation of the graph.
Composite functions appear, the nature of the multiplication law to identify, if you want to prove it in detail, but also that the definition of the grasp. Exponential and logarithmic functions are inverse functions of each other.
A positive number with a base other than 1, 1 on both sides of the increase or decrease. The function definition domain is good to find.
The denominator can not be equal to 0, even the root of the square must be non-negative, zero and negative no logarithm; tangent function angle is not straight, cotangent function angle is not flat; the rest of the function of the real set, a variety of cases for the intersection. Two mutual inverse function, monotonic nature are the same; graphs are mutually axisymmetric, Y = X is the axis of symmetry; solve very regular, anti-solution commutative definition of the domain; the definition of the domain of the inverse function, the original function of the value domain.
The nature of the power function is easy to remember, exponentiation of both about the fraction; the nature of the function to see the index, odd mother odd child odd function, odd mother even child even function, even mother non-odd and even function; graphs in the first quadrant, the function of the increase or decrease to see the positive and negative. Trigonometry is a function of trigonometric functions, quadrant symbols coordinates note.
The function image unit circle, cycle parity increase or decrease now. The same angle relationship is very important, simplification and proof are needed.
Positive hexagon at the apex, from top to bottom string cut; the center of the number 1, linking the vertex triangle; downward triangular sum of squares, the inverse relationship is diagonal, the apex of any function, is equal to the last two divided. Induction formula is good, negative and positive after the big and small, into a tax angle is good to check the table, simplify the proof of less.
Half of two integer multiples, odd to even unchanged, the latter will be regarded as an acute angle, the symbol of the original function judgment. The cosine of the sum of the two angles, turned into a single angle good value, cosine product minus sine product, commutative deformation of the formula.
The sum and difference of the product must be the same name, the reciprocal angle change name. The calculation proves that the angle is first, pay attention to the structure of the function name, keep the basic quantity unchanged, difficult to change towards simple.
The principle of inversion is a guide, and the sum and product of powers and differences are raised and lowered.
The first thing you need to know is how to use the equation to prove a conditional equation, and how to use it.
The universal formula is not ordinary, and it is the first to be rationalized. The formula is used smoothly and inversely, the use of deformation and clever use; 1 plus cosine think cosine, 1 minus cosine think sine, the power to rise once the angle is reduced by half, the ascending power descending it for the model; trigonometric inverse function, the essence is to seek the angle, the first trigonometric function value, and then determine the range of the angle; the use of right-angled triangles, the image of visualization and good for a change of name, the equation of a simple triangle, the simplest set of solutions; the "Inequality" solution to the inequalities of the pathway, the use of functions of the nature.
To refer to irrational inequalities, into rational inequalities. Higher toward the lower generation, step by step transformation to be equivalent.
The number and shape of each other, to help solve the big role.
The method of proof of inequality, the nature of real numbers is very powerful.
The difference between 0 and 0 than the size of the quotient and 1 to compete. Directly difficult to analyze the good, clear thinking synthesis method.
Non-negative commonly used basic formulas, positively difficult to prove the opposite method. There are also important inequalities, and mathematical induction.
Graphical functions to help, drawing and modeling construction method. Two Series of Equal Differences and Equal Ratios, with the general formula N terms and sums.
Two finite limits, four operations in the order of change. The problem of the series is more varied, the equation is reduced to the overall calculation.
The sum of the series is more difficult, misplaced elimination clever conversion, take the long and make up for the short Gaussian method, split the sum of the formula calculation. The idea of induction is very good, a good program to think: a calculation, two look at the three associations, guess the proof is indispensable.
There is also the mathematical induction method, the proof of the steps programmed: first verify and then assume that from K to K plus 1, the inference process must be detailed, the principle of induction to be sure. The complex number is the imaginary unit i, and the number set is expanded to the complex numbers.
A complex number, a pair of numbers, horizontal and vertical coordinates of the real and imaginary parts. Corresponding to the point on the complex plane, the origin is connected to it as an arrow.
The shaft of the arrow is oriented to the X-axis, and the result is the spoke angle. The length of the arrow shaft is the mode, often combining numbers and shapes.
Algebraic geometry trigonometry, try to transform each other. The essence of algebraic operations, there are i polynomial operations.
Positive integers of i, four numerical cycles. Some important conclusions, memorize and use the results.
The real and imaginary are interchanged, the complex numbers are equal to transform. The use of equations to solve the problem, pay attention to the overall substitution technique.
Geometric operations on the map, addition of parallelograms, subtraction of trigonometry judgment; multiplication and division of the operation, the reverse of the direction of the direction to do the rotation, stretching the whole year mold length. The operation of trigonometric form, must be the spoke angle and mode discernment.
Utilizing the DeMauve formula, it is very convenient to multiply and divide. Spoke angle operation is very peculiar, and the sum and difference is obtained by product quotient.
Four properties can not be separated, equal and mode and **** yoke, two will not be real numbers, compare the size of the must. Complex real numbers are very close, must pay attention to the essence of the difference.
The Arrangement, Combination, and Binomial Theorem "Addition and multiplication of two principles, throughout the law. It has nothing to do with the order is a combination, and the requirement of order is a permutation.
Two formulas and two properties, two ideas and methods. The two formulas and two properties, two ideas and methods.
Arrangements and combinations together, the first choice is common sense. The first thing you need to do is to consider the special elements and positions.
The first thing you need to do is to think about it. Arrangement and combination of constant equation, definition and proof modeling test.
On the binomial theorem, China Yang Hui triangle. Two properties and two formulas, function assignment transformation.
"Three-dimensional geometry" point line surface trinity, column cone billiard ball as a representative. The distance is from the point and the angle is from the line.
Perpendicular and parallel is the key point, the proof must be clear concept. Line line and face and face, three pairs of cycles between the present.
The whole idea of equations is to find, and the sense of reduction is to cut and fill. Before calculating, you have to prove it, and draw the shifted graph.
Three-dimensional geometry auxiliary lines, commonly used perpendicular and plane. The concept of projection is very important and crucial to solving problems.
Heteroclinic dihedral angles, volume projective formulas live. Axiomatic properties of the three perpendicular lines, to solve a large part of the problem.
Planar Analytic Geometry
Directed Line Segment Linear Circle, Elliptic Hyperbolic Parabola, Parametric Equation Polar Coordinate, Combination of Numerical and Physical Forms is a good example. Descartes' point of view on the point and ordered real pairs, the two - one to correspond, creating a new way of geometry.
The two types of ideas mirror each other, the idea of reduction to play the front; both said that the method of coefficients to be determined, in fact, the idea of the system of equations. Three types of collection, drawing a curve for the equation, given the equation for the curve, the curve position relationship judgment.
Four tools are treasures, coordinate thinking parameters are good; plane geometry can not be lost, rotation and transformation of the complex number of requests. Analytic geometry is geometry, and you can't learn it by getting carried away.
Graphical intuitive number into the subtle, math is mathematical and physical science.