A summary of mathematics teaching in the second volume of the fourth grade of primary school by the newly edited People's Education Press I. Guiding ideology
This semester, I will focus on cultivating students' innovative spirit and practical ability as well as their ability to solve mathematical problems in daily life under the guidance of the new ideas provided by the new curriculum. According to the work plan of the teaching and research group and the arrangement of the guidance office, around the central task of classroom teaching and teaching and scientific research, I will cultivate students' practice, innovative spirit and practical ability in the whole process of education and teaching, actively practice the "cooperative learning" teaching mode, and let students practice, explore and cooperate independently.
Second, the analysis of learning situation
After three years of mathematics study, students' basic knowledge and skills of mathematics have basically reached a certain level, and they are interested in learning mathematics and willing to participate in learning activities. Especially some hands-on, cooperative learning content is more interested. Most students realize that mathematics knowledge is everywhere, and there is mathematics everywhere in life. This laid an important foundation for students to learn this book, and also created conditions for improving students' problem-solving ability and practical ability.
Third, the teaching content.
This textbook includes the following contents: four operations, observation objects, operation rules, meaning and nature of decimals, triangle, addition and subtraction of decimals, movement of figures (II), average and composite bar graphs, wide angle of mathematics, and general review. In terms of number and calculation, this textbook arranges the meaning and nature of decimals, addition and subtraction of decimals, four operations, algorithms and simple operations. Students already know simple decimals in the first learning stage and can calculate the addition and subtraction of a decimal. This semester, students will systematically learn the meaning and nature of decimals, the comparison of decimal sizes, and the changes of decimal sizes caused by the movement of decimal positions. And on this basis, learn more complicated decimal addition and subtraction, so that students can do well.
The knowledge about the order and algorithm of four operations is also the basic knowledge about calculation that primary school students should master, and in the first phase, students have been exposed to related content, such as mixed operation. Students learned the mixed operation problems calculated from left to right, and got a preliminary understanding of the function of brackets. This semester, students will systematically learn the operation order of mixed operations, focusing on the operation order of elementary arithmetic of two-level operations, laying the foundation for learning to list comprehensive formulas to solve problems. On the other hand, the arithmetic is mainly based on students' intuitive understanding, summarizing the arithmetic of addition and multiplication, and learning to use the arithmetic to perform simple operations.
In terms of space and graphics, this textbook arranges three units: observing the movement of objects, triangles and graphics, which is the difficulty or key teaching content of this textbook. On the basis of existing knowledge and experience, students can further understand the characteristics of triangles through rich mathematical activities, so that students can explore the characteristics of graphics and transform graphics, further develop the concept of space, improve their observation ability and hands-on operation ability, and gain experience in inquiry learning.
In terms of statistical knowledge, this textbook arranges mean and composite bar charts. The textbook introduces two different forms of composite bar charts, vertical and horizontal, so that students can use their existing knowledge to learn to understand these two charts, learn to analyze data, further understand the role of statistics in real life and form the concept of statistics.
In solving problems with mathematics, on the one hand, the textbook combines the calculation content and uses the knowledge of four integer operations and decimal addition and subtraction operations to solve simple problems in life; On the other hand, arrange the teaching content of "wide angle of mathematics", and guide students to experience the mathematical thinking method of the problem of chickens and rabbits in the same cage and feel the charm of mathematics through observation, speculation, experiment and reasoning. At the same time, students can learn to solve some simple practical problems by using the thinking method of chicken and rabbit in the same cage, cultivate their ability of observation, analysis and reasoning, cultivate their interest in exploring and discovering mathematical problems, and appreciate the consciousness of mathematical beauty.
According to students' mathematical knowledge and life experience, this textbook arranges a practical activity of comprehensive applied mathematics-"Nutrition Lunch", which allows students to use what they have learned to solve problems, experience the fun of exploration and the practical application of mathematics, and feel the fun of using mathematics. Through group cooperative exploration activities or exploration activities with realistic background, students' mathematical consciousness and practical ability are cultivated.
Fourth, teaching objectives.
The teaching goal of this textbook is to enable students to:
1. Understand the meaning and nature of decimals, understand the application of decimals in daily life, further develop the sense of numbers, master the law of decimal size change caused by decimal position movement, and master the addition and subtraction operation of decimals.
2. Master the operation order of elementary arithmetic and carry out simple integer elementary arithmetic; Explore and understand the operation rules of addition and multiplication, and further improve the calculation ability.
3. Knowing the characteristics of triangles, we will classify triangles according to the characteristics of sides and angles, and know that the sum of any two sides of a triangle is greater than the third side, and the sum of the inner angles of the triangle is 180.
4. Master the law of movement and change of graphics.
5. Know the composite bar chart, understand its characteristics, initially learn to analyze according to charts and data, and further understand the role of statistics in real life.
6. Experience the process of finding, asking and solving problems in real life, and experience the application of mathematics in daily life.
Function, initially formed the comprehensive application of mathematical knowledge to solve problems.
7. Understand the thinking method to solve the problem of chickens and rabbits in the same cage, cultivate the consciousness of discovering mathematical problems from life, initially cultivate the ability to explore effective methods to solve problems, and initially form the ability of observation, analysis and reasoning.
8. Experience the fun of learning mathematics, improve the interest in learning mathematics, and build confidence in learning mathematics well.
The Key Points and Difficulties in verb Teaching (Verb Abbreviation)
The meaning and nature of decimals, addition and subtraction of decimals, arithmetic rules and triangles are the key teaching contents of this textbook.
Arrangement of intransitive verbs' practical activities
Week 14 nutritious lunch
Seven. Teaching progress
1, four arithmetic ...................... (6 class hours)
The meaning of 1. addition
2. The significance of subtraction
3. The relationship between addition and subtraction.
4. The meaning of multiplication
5. The meaning of division
solve problems
2. Observing ..................... (4 class hours)
1. Observation 1 geometric combination.
2. Observe three different geometric combinations.
3, the operation law of ................. (6 class hours)
1. law of addition
2. Law of multiplication operation
4, the meaning and nature of decimal ................... (19 class hours)
The meaning of 1. Decimal and its reading and writing methods
2. Comparison of the nature and size of decimals
3. Decimal movement causes the change of decimal size
4. Decimal and unit conversion
5. Approximate decimal places
Organization and review
5. Triangle ................................. (4 class hours)
6. Addition and subtraction of decimals ...................... (6 class hours)
1 decimal addition and subtraction
2 decimal addition and subtraction mixed operation
The law of integer addition is extended to decimals
7. Graphic Movement (2)........................(4 class hours)
8. Average and Composite Bar .................. (6 class hours)
1 average
2 composite bar chart
Nutrition lunch ............................ 1 class.
9, mathematics wide angle-chicken rabbit cage .......................... (4 class hours)
10, always reviewing ................................ (4 class hours)
Eight, improve ideological quality
1. Attach importance to the creation of teaching scenarios, pay attention to students' life experiences, provide rich perceptual materials, strengthen students' operational activities, and help students establish relevant mathematical concepts in combination with real life.
2. Strengthen guidance and auxiliary work, so that every student can develop.
3. Design some exploratory operation activities to cultivate hands-on ability, practical ability and innovative spirit.
4. According to the topic, do some investigation, analysis and attempts in classroom communication and training to stimulate students' interest in learning.
5. Carefully design the teaching process, carefully prepare before class, and strive to improve the efficiency of classroom teaching. Summarize and reflect on classroom teaching in time.
6. Pay attention to the close combination of mathematics classroom teaching and students' real life, create a living classroom situation, and make the mathematics problems in the teaching content come alive.
7. Pay attention to the openness of classroom teaching, infiltrate mathematical thinking methods step by step, and cultivate students' mathematical thinking ability.
8. Strictly grasp students' classroom study habits.
9. Guide students to ask questions on their own initiative and attach importance to cultivating problem awareness. In practical teaching, teachers can creatively use textbooks, such as replacing the contents of textbooks with social hot issues that students were generally concerned about at that time, so that students can understand the close relationship between mathematics and real life more deeply. Teachers should also strengthen guidance, so that students can learn to flexibly choose relevant information to solve problems according to the actual situation and cultivate the flexibility of students' thinking.
10, pay attention to the correct positioning of teaching objectives when dealing with teaching materials. Don't raise the height at will to reduce the difficulty.
Nine, business promotion measures
1. Dig deeply into the teaching materials, understand the intention of compiling the teaching materials, prepare lessons well, and ask about the quality of the class for 40 minutes.
2. Improve classroom teaching, increase classroom density, and use activation exercises to improve students' interest in learning.
3, understand the students, teach students in accordance with their aptitude, timely feedback, grasp the students' learning situation, and constantly improve their academic performance.
4. Pay attention to the guidance of underachievers and try to let them catch up gradually.
5. Strengthen the training of students' computing ability, pay attention to students' initial logical thinking ability, and cultivate students' thinking flexibility.
6. Learn from other teachers with an open mind, learn from each other's strengths and actively participate in teaching and research activities.
7. Read a wide range of books, constantly enrich yourself and open up new ideas.
8. Strengthen collective teaching and research, master the knowledge connection between the upper and lower grades, dig deep into the teaching materials and understand the writing intention of the teaching materials. Teaching according to the specific requirements of the syllabus.
9. Make good use of teaching materials, reform classroom teaching structure and strengthen guidance.
10, according to the age characteristics of students, knowledge should be from easy to difficult, from simple to complex. From low to high. Step by step.
1 1, focusing on cultivating the enthusiasm, initiative and independence of deep learning.
12, strengthen the cultivation of ability and good study habits.