Our school began to implement life education on 200 1, taking life education as the window of the school and establishing the life education work research room; In life education, subject infiltration is regarded as an important way to implement life education. In mathematics teaching, some practices and ideas of life education are permeated through two aspects: "refining teaching materials to increase life understanding" and "paying attention to mathematical historical materials and experiencing life course".
First, the connotation of life education
Life education first started in America, and it was the first time that American scholar Jay Donner Walters put forward the concept and thought of life education, because its purpose is to arouse people's love for life and eliminate the threat to life, which has important practical significance. Then it was gradually popularized all over the world, forming a new educational trend of thought.
With regard to the interpretation of the connotation of life education at home and abroad, different people cut in from different angles and draw different conclusions. But facing the logical starting point of life education, the fundamental way to solve these problems is to communicate with each other, that is, life education makes people live more like people, perfect and develop people and improve their quality of life. Therefore, it is generally believed that life education is a kind of holistic education, which includes not only the care for life, but also the cultivation of people's superior survival ability and the promotion of life value. Life education is an educational practice that educators help the educated to "know, love and develop life". "Understanding life" is to let students know the origin of life and the physiological and psychological characteristics of each development stage, master the basic skills of self-protection, and correctly face life phenomena such as birth, old age, illness and death. "Love life" is to guide students to learn to care about themselves, others, nature and society and improve their quality of life. "Developing life" is to help students understand the meaning and value of life, cultivate correct values and outlook on life, and promote the realization of students' personal values.
Second, the significance of implementing life education.
The development trend of economic globalization and cultural diversification, and the rapid development of modern science and technology and information technology provide favorable conditions for exchanges and cooperation between different nationalities and cultures, and provide a broad platform for students to obtain information, broaden their horizons and cultivate their skills. However, the following negative factors have also affected teenagers' moral concepts and behavior habits to some extent. Hedonism, money worship and extreme individualism have a negative impact on teenagers, which leads to the vague moral concept of some students and the decline of their moral self-discipline ability. In addition, campus injuries, accidents and other factors that threaten the personal safety of young students also affect the physical and mental health of young people to a certain extent. Therefore, it is urgent to cultivate young people to form a scientific outlook on life, and then lay the foundation for students to establish a correct world outlook, outlook on life and values. It is against this background that many areas in China have taken the lead in implementing life education. For example, in June 2006, Shanghai officially promulgated the Outline of the Value of Life Education in Primary and Secondary Schools in Shanghai (for Trial Implementation). Therefore, life education for teenagers is the call of the times.
Thirdly, it is necessary to infiltrate life education into subject teaching.
The new curriculum reform of basic education conforms to the requirements of the development of the times, taking "for the development of every student" as the starting point, and endows life education with necessary humanistic care from the aspects of curriculum objectives, curriculum content, curriculum implementation and curriculum evaluation. The new curriculum standard also clearly puts forward the three-dimensional goal of "knowledge and skills, process and method, emotional attitude and values". This requires all teachers not only to teach, but also to educate people, and to combine teaching and educating people organically. In their own subject teaching, let life education "sneak into the night with the wind, moisten things quietly", so that students can acquire the true meaning of cherishing life, being kind to life and being proactive while learning the subject. At the same time, subject teaching, as the most normal way for students to receive education on campus, is an indispensable main position for implementing life education. Therefore, in the life education implemented in our school last year, it is also an important way to infiltrate life education into subject teaching.
Fourthly, how to infiltrate life education in mathematics teaching.
Mathematics is a pure science subject, which is different from the humanities such as politics and history. So many teachers may think that mathematics can only teach students to master formulas and solve problems. However, as one of the most important subjects in the basic education stage, mathematics should not ignore the education of students' life in its classroom. As long as teachers have this awareness, there are still many opportunities to implement life education in mathematics teaching.
1. Refine textbook materials and increase life knowledge.
In the new curriculum standard experimental textbook, there are many contents that can be combined with life education. As long as teachers have this awareness, they can combine the relevant contents of mathematics teaching and compile various types of topics from the aspects of population, energy and environmental ecology. To enable students to discuss and solve problems related to forest coverage, soil erosion, urban beautification and greening, garbage removal and population by calculating, drawing statistical charts and compiling statistical tables. Carry out education on population, resources and environment, so that students can correctly understand the basic national policy of family planning in China, consciously cherish every resource, correctly understand the rational development of resources, take the road of sustainable development, and enhance their sense of responsibility for protecting the ecological environment.
Case 1: required 1 and 3.2.2 function model application examples have the following examples:
The population problem is a common concern of all countries in the world today. Understanding the law of population change can provide a basis for effectively controlling population growth. As early as 1798, the British economist Malthus put forward the population growth model in the natural state:
Where t represents the elapsed time, the population at t=0, and r represents the average annual growth rate of the population.
The following table shows the population data of China from 1950 to 1959:
age
1950
195 1
1952
1953
1954
1955
1956
1957
1958
1959
Number of people/ten thousand people
55 196
56300
57482
58796
60266
6 1456
62828
64563
65994
67207
(1) If the average annual population growth rate is taken as the population growth rate of China in this period (accurate to 0.000 1), then the Malthusian population growth model is used to establish the specific population growth model of China in this period, and whether the obtained model is consistent with the actual population data is tested;
(2) According to the growth trend in the table, in which year will the population of China reach 654.38+0.3 billion?
After solving this problem, you can increase students' understanding from the following aspects:
Take this opportunity to briefly introduce the changing process of the global population and the unfavorable factors brought by the rapid population growth to students, so that students can cherish resources more.
② From the conclusion of question (2), it is necessary for China to implement family planning so that students can appreciate the good intentions and foresight of the older generation.
③ If the population grows naturally, ask students to calculate the population of China this year (2008):
It is nearly 700 million more than the current population. According to the annual consumption of 200 kilograms of grain per person, the newly added population of 700 million will consume 654.38+400 million tons of grain every year, while the global grain output last year was only 1.984 million tons. Combined with the current global food crisis, students feel that if China does not implement family planning in a responsible manner, increase food production and meet food self-sufficiency, it may be a serious global famine now.
Case 2: Exercise 3 in Compulsory 4 Simple Application of Trigonometric Function Model of1.6;
From the day of birth, people's emotional, physical, intellectual and other psychological and physiological conditions have periodic changes. According to the statistics of psychologists, human body rhythm can be divided into three types: physiological rhythm, emotional rhythm and intellectual rhythm. The time periods of these rhythms are 23 days, 28 days and 33 days respectively. Each rhythm period is divided into three stages: high tide period, critical period and low tide period. Half of the above three rhythm periods are critical days, that is to say, 1 1.5, 14 and 16.5 are critical days for body rhythm, emotional rhythm and intellectual rhythm respectively. The first half of the key day is the high tide period, and the second half is the low tide period. The day before your birthday is the starting position (equilibrium position). Please draw your own physical, emotional and intellectual curves according to your date of birth, and sum up when you should control your emotions and encourage yourself. When should I strengthen my exercise and when should I keep my strength?
For this problem, I deal with it through the following three aspects:
① According to the meaning of the question, let the students draw their own physical, emotional and intellectual curves and summarize them;
(2) Download the "Human Biological Rhythm Inquiry" software from the Internet for students to inquire;
(3) according to the results of the inquiry, increase students' understanding of themselves, and make a reasonable study plan every month on this basis to adjust their mood and mentality.
2. Pay attention to mathematical historical materials and experience the course of life.
In the experimental teaching materials of the new curriculum standard, there are not only selected lectures on the history of mathematics, but also the development of mathematics and the stories of mathematicians in the "reading and thinking" behind many chapters. As teachers, we should have this kind of consciousness and responsibility, make rational use of these materials and give students a life experience.
(1) Cultivate students' patriotic sentiments through the study of mathematical historical materials. China has made brilliant achievements in ancient mathematics, and a number of outstanding mathematicians have appeared, such as Liu Hui, Zu Chongzhi, Zuxuan, Yang Hui, Qin, China's remainder theorem, Zuxuan axiom and "circumcision". However, from the Ming Dynasty, China's mathematics gradually fell behind the West. Teachers can combine the topics 3 in the standards-"Ancient Mathematics Treasures in China" and11-"Development of Modern Mathematics in China" to instill national pride in students and cultivate their "international consciousness" under the requirements of the new era, so that students can realize that patriotism is not reflected in "taking advantage". We should respect foreign achievements in mathematics and learn with an open mind. We must constantly strive for self-improvement and create greater glories.
(2) To guide students to feel the excellent qualities of mathematicians through the study of mathematical historical materials. For example, in the new math class, we can tell students how logarithm was invented: from 65438 to the first half of the 6th century, Europeans were keen on geographical exploration and ocean trade, especially geographical exploration needed more accurate astronomical knowledge, and then the requirements for calculation speed and accuracy increased day by day. Many mathematicians made a lot of efforts until the British mathematician pienaar published a wonderful logarithmic table in 16 14. Let students experience the indomitable enterprising spirit of mathematicians on the road of mathematical exploration. In addition, we can also introduce some mathematicians' deeds appropriately: for example, Euler insisted on mental arithmetic after blindness and wrote many works; When the Roman invaders broke in, Archimedes was still concentrating on mathematics; In the past 300 years, many mathematicians bravely walked into Fermat's last theorem. All these will play a positive role in cultivating students' good quality of pursuing truth and establishing perfect personality.
refer to
1. On life education in primary and secondary schools
2. Ordinary senior high school standard experimental textbook: required course of mathematics 1, required course 4, optional course 3.