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The fifth grade mathematics teaching work plan Volume I 2022
The fifth grade mathematics teaching work plan Volume I 2022(5 articles)

The content of the plan is far more important than the form. You don't need fancy words. Simplicity, clarity and operability are the basic requirements of the work plan. The following is my work plan 2022(5 articles) in the first volume of fifth grade mathematics teaching. Welcome to learn from it!

The fifth grade mathematics teaching work plan Volume I 1 I, Guiding ideology

In the new semester, under the guidance of the new concept 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 explore the practice of cultivating students' innovative spirit and practical ability throughout the whole process of education and teaching, and cultivating students' autonomous learning throughout the whole process of education and teaching. Develop cooperative learning to improve students' comprehensive ability in an all-round way.

Second, the analysis of students' situation

Most fifth-grade students are more enthusiastic about mathematics learning and can acquire knowledge from existing knowledge and experience. The level of abstract thinking has developed to a certain extent, the basic knowledge is firmly grasped, and the students have certain mathematics learning ability. Can actively participate in the learning process in class, and have the ability of observation, analysis, self-study, expression and operation. Some students have poor basic knowledge, don't listen carefully in class, can't consciously complete their learning tasks, and need teachers to supervise and coach them. This semester, we will focus on students with learning difficulties. In teaching, we will create happy situational teaching for all students, stimulate their learning motivation and enter the learning motivation.

Third, the book teaching material analysis

The whole teaching content:

This textbook includes the following contents: equation, determination of position, common multiple and common factor, cognition of score, searching law, basic properties of score, statistics, addition and subtraction of score, problem-solving strategy, comprehensive application of circle and mathematics, etc.

Equations, cognitive scores, basic properties of scores, addition and subtraction of scores, and problem-solving strategies are the key teaching contents of this textbook.

Teaching objectives:

Knowledge and skills

1, so that students can contact the existing knowledge and experience and experience the process of abstracting practical problems into formulas and equations; Through the exploration and understanding of the significance, nature and calculation method of fraction addition and subtraction, the necessary calculation skills are formed.

2. Let students acquire relevant basic knowledge and corresponding basic skills in the process of determining the position with number pairs, understanding the characteristics of the circle, and exploring and mastering the formulas of the circumference and area of the circle.

3. Experienced the process of expressing relevant data with composite broken line statistical chart, and can conduct simple analysis and communication; Be able to complete relevant broken line statistical charts as required.

(B) Mathematical thinking

1, in the process of understanding equations, equations, exploration, etc. Develop abstract thinking and enhance the sense of symbol.

2, in the process of understanding common multiples and common factors, cultivate good thinking quality.

3. In the process of understanding the meaning of fractions, develop the ability of rational reasoning and preliminary deductive reasoning, and constantly enhance the sense of numbers.

4. In the process of learning to use number pairs to determine the position and know the circle, exercise thinking in images and develop the concept of space.

5. In the process of learning statistics, further strengthen the statistical concept and cultivate statistical ability.

(3) Solving problems

1. Find and put forward some mathematical problems from the actual situation and solve them with mathematical knowledge and methods of equations, fractions and numbers.

2. In the process of solving practical problems, master its basic ideas and methods, and understand its characteristics and values.

3. Improve the ability of cooperation and communication in activities such as describing simple walking routes with numbers and simple graphic transformation.

4. We can apply the strategy of "reverse reasoning" to solve some simple practical problems.

Emotion and attitude

1, can actively participate in various mathematical activities, feel their own gains and progress in mathematical knowledge and methods, and improve their interest in learning mathematics.

2. In the process of exploring mathematical knowledge and discovering mathematical laws, I further feel the order and rigor of mathematical thinking, and constantly enhance my awareness of independent exploration.

3. In the process of using mathematical knowledge and methods to solve simple practical problems, we can further feel the value of mathematics and the close relationship between mathematics and life.

Fourth, teaching methods.

(1) Create a pleasant teaching situation to stimulate students' interest in learning.

(2) Advocating the diversity of learning methods and paying attention to students' personal experience.

(3) The forms of classroom training are diversified, focusing on multiple solutions to one problem and solving problems from different angles.

(4) Strengthen the teaching of basic knowledge, so that students can master these basic knowledge effectively.

This semester, we should provide rich teaching resources and space for students' sustainable development with new teaching concepts. We should give full play to the advantages of teaching materials, closely link mathematics with life in the teaching process, establish students' dominant position in learning, and create a pleasant and open teaching situation, so that students can meet their individual learning needs in the pleasant and open teaching situation, thus mastering basic knowledge and skills and cultivating students' innovative consciousness and practical ability.

Verb (abbreviation of verb) learning style

1, preview the textbook and put forward the key points of knowledge. How do you understand it? Do you have any questions?

2. Find out the solution to the problem by consulting the information.

3. As the instructor of classroom teaching, teachers pay attention to students' autonomous learning, advocate inquiry and experiential learning methods, and cultivate students' hands-on operation ability and divergent thinking ability.

The work plan of mathematics teaching in the first volume of the fifth grade 2 I. Analysis of the present situation of students' knowledge;

There are 42 students in class 3 * * for five years, including boys 12 and 30 girls. Most students have correct learning attitude, good study habits and strong sense of space. They can think positively in class and study actively and creatively. However, some students have poor ability and have difficulties in calculation and application. Some students have a bad learning attitude and can't finish their homework on time. It is understood that the students' grades in this class are obviously polarized, and there are still many underachievers. In view of these situations, this school year, while paying attention to the teaching of basic knowledge, we should strengthen the guidance of underachievers and top students to improve the overall performance of our class.

Second, the main tasks and requirements of this semester's teaching:

The contents of this textbook include: decimal multiplication, decimal division, decimal elementary arithmetic and application problems, calculation of polygon area and simple equations.

Teaching requirements:

1, master the calculation method of decimal multiplication and division, and be skilled in calculation. Rounding will be used to intercept the approximate value of the product sum quotient.

2, master the decimal elementary arithmetic order, and can calculate correctly.

3. Step-by-step column or column synthesis will be used to solve the general application problem of three-step calculation of integers and decimals.

4. Mastering the derivation process and area calculation method of parallelogram, triangle and trapezoid can solve practical problems.

5, can use letters to represent numbers, common quantitative relations, operation rules and formulas, understand the meaning of equations, can solve simple equations, and can list equations to solve application problems.

6. Can use a calculator.

Three, the purpose of each unit requirements:

Unit 1: Multiplication and division of decimals. Students are required to understand the meaning of decimal multiplication and division and master the calculation method of decimal multiplication and division (as long as the positioning method of product is mastered, decimal multiplication will be solved easily. ); Rounding will be used to intercept approximate values of products, quotients and cyclic decimals; Can use calculator to calculate decimal multiplication, division and check.

(2) Unit 2: integer and decimal elementary arithmetic and application problems. Students are required to master the operation sequence, be skilled in correct calculation, be able to list comprehensive formulas to solve copywriting problems, and be able to list comprehensive formulas to solve application problems in three-step calculation to improve their ability to solve practical problems.

(3) Unit 3: Calculation of polygon area. On the basis of understanding, students are required to master the derivation process of the calculation formulas of parallelogram, triangle and trapezoid, and master the calculation methods of each graphic area, which can solve practical problems and cultivate their hands-on ability, observation ability, generalization ability and practical problem-solving ability.

(4) Unit 4: Simple Equation. Students are required to master some simple algebra knowledge, learn to express numbers by letters, express common quantitative relations, operation rules, formulas for calculating the area and perimeter of plane graphics, understand the meaning of equations, master the methods of solving equations, correctly solve equations, check computations, learn to solve equations that require two or three steps of calculation, enumerate equations to solve practical problems, and improve the ability of analyzing and solving problems.

(5) Unit 5: General review. Students are required to master the knowledge they have learned in this semester comprehensively, systematically and firmly, further understand the internal relationship between knowledge, and improve their ability to comprehensively apply knowledge and solve practical problems.

Four, the focus and difficulty of teaching materials:

1, focusing on decimal multiplication and division operations and simple equations;

2. The difficulty is to use fractional division and column equation to solve application problems.

Verb (abbreviation of verb) Measures to improve teaching quality this semester;

1. Strengthen purposeful education in learning, fully tap students' potential, give full play to students' main role, and correct individual students' learning attitudes.

2. Strengthen students' practical activities and cultivate students' concept of space.

3. Strengthen individual counseling to improve the academic performance of underachievers. Give them more care and love, and lower the requirements appropriately.

4. Create more learning scenes, boldly let students learn independently, solve problems and develop students' personality.

5. Pay attention to strengthen the connection between mathematics and real life, so that students can solve mathematical problems in activities and feel, experience and understand mathematical knowledge.

The work plan of mathematics teaching in the first volume of the fifth grade 3 I. Analysis of class situation;

Students in Class 5 (6) have a good grasp of the basic knowledge and concepts of mathematics, strong computing ability, and some ability to analyze and solve problems, but their hands-on ability is weak. The thinking of solving problems is not open and flexible enough. The overall intelligence level of the whole class is good, but there are obvious differences in intelligence among students in one class, and there are several students with learning difficulties in the class. Students generally have good study habits, but a small number of students have bad habits, often do not finish their homework, and their classroom work is sloppy. In addition, some students have to make small moves and speak freely. Various phenomena have affected the study of other students. Therefore, it is a long way to go to improve the quality of mathematics teaching in grade five.

Second, teaching material analysis:

The field of number and algebra is the main content of this textbook, which is divided into seven units and five parts. The first part of the understanding of numbers has three units: the third unit common multiple and common factor, the fourth unit understanding of the basic properties of fractions, and the sixth unit fractions. The second part of digital operation is the eighth unit of decimal addition and subtraction. The third part of the formula and equation is the equation of unit 1. The fourth part explores the law, and the fifth unit discovers the law. The fifth part is the problem-solving strategy of Unit 9. Adjusted the requirements of common multiple and common factor units. The fourth and sixth units are about the teaching of the meaning and basic nature of fractions. These two units will reveal the meaning of fractions and study their basic properties. The knowledge of common multiples and common factors is the basis of fractional division, so the textbook first teaches the common multiples and common factors in Unit 3. In the operation of numbers, students have learned the addition and subtraction of fractions with the same number whose denominator is less than 10. After revealing the meaning of fractions, this textbook also teaches the addition and subtraction of fractions with different denominators, the mixed operation of fractions addition and subtraction, and the simple calculation by using the algorithm. Students can deepen their understanding of the meaning of fractions by exploring the addition and subtraction of fractions with different denominators, and the calculation process is the application of the basic properties of fractions. The mixed operation of fractional addition and subtraction and the teaching of simple calculation by using the algorithm can guide students to extend the operation order and algorithm of integer addition to fractional addition in time and develop students' migration ability. In teaching, we can find the law of coverage times of simple graphics after translation.

Because students have already had preliminary experience in graphic translation and have certain ability to explore laws, properly arranging this content can gradually improve students' ability to explore mathematical laws. Problem-solving strategy is based on the list and drawing strategy, analyzing the quantitative relationship, and solving problems with backward (reduction) strategy. This is valuable for developing students' reverse thinking. At the same time, it can further enhance students' awareness of using strategies to analyze problems and improve their ability to solve problems. There are two units in the field of space and graphics, one is the understanding of graphics, that is, the circle of 10 unit, and the other is graphics and position. The knowledge and experience of common straight lines on the plane is helpful for students to understand curves, and it is also an important expansion of students' cognitive structure of plane graphics. The teaching of this unit will further enhance students' existing experience and lay the foundation for the third phase of learning graphics and coordinates. The field of statistics and probability has 1 unit, which is the seventh unit of statistics. Teaching compound broken-line statistical chart can further enrich students' understanding of data representation and gradually cultivate students' ability to effectively represent data according to needs. The content in the field of practice and comprehensive application has also been creatively tried in this textbook, which has been arranged for four times. These practices and comprehensive applications help students to further understand the extensive relationship between mathematics and life, deepen their understanding of what they have learned, cultivate their ability to solve problems by using knowledge comprehensively, and gain positive emotional experience.

Third, the teaching objectives:

Knowledge and skills:

1, so that students can contact the existing knowledge and experience and experience the process of abstracting practical problems into formulas and equations; Through the exploration and understanding of the significance, nature and calculation method of fraction addition and subtraction, the necessary calculation skills are formed.

2. Let students acquire relevant basic knowledge and corresponding basic skills in the process of determining the position with number pairs, understanding the characteristics of the circle, and exploring and mastering the formulas of the circumference and area of the circle.

3. Experienced the process of expressing relevant data with composite broken line statistical chart, and can conduct simple analysis and communication; Be able to complete relevant broken line statistical charts as required.

Mathematical thinking:

1, in the process of understanding the equation, develop abstract thinking and enhance the sense of symbol.

2. Cultivate good thinking quality in the process of understanding common multiples and common factors.

3. In the process of understanding the meaning of fractions, develop the ability of rational reasoning and preliminary deductive reasoning, and constantly enhance the sense of numbers.

4, in the process of learning to use numbers to determine the position and know the circle, exercise thinking in images and develop the concept of space.

5. In the process of learning statistics, further strengthen the statistical concept and cultivate statistical ability.

Solve the problem:

1, can find and put forward some mathematical problems from real situations, and can use mathematical knowledge and methods of equations, fractions and numbers to solve problems.

2. In the process of solving practical problems, master its basic ideas and methods, and understand its characteristics and values.

3. Improve the ability of cooperation and communication in activities such as describing simple walking routes with numbers and simple graphic transformation.

4, can apply the strategy of reverse reasoning to solve some simple practical problems.

Emotions and attitudes:

1, can actively participate in various mathematical activities, feel their own gains and progress in mathematical knowledge and methods, and improve their interest in learning mathematics.

2. In the process of exploring mathematical knowledge and discovering mathematical laws, I further feel the order and rigor of mathematical thinking, and constantly enhance my awareness of independent exploration.

3. In the process of using mathematical knowledge and methods to solve simple practical problems, we can further feel mathematics.

Value, feel the close connection between mathematics and life.

Teaching measures:

1, create a democratic and harmonious learning atmosphere, let students truly become the masters of learning, and stimulate students' interest in learning mathematics. Cultivate students' cooperative spirit, so that each student can be improved on his own basis.

2. Pay attention to the accumulation of experience and methods gained by students in the process of knowledge formation and inquiry, so that students can learn to study independently in the form of hands-on, brain, oral learning, discussion and answering questions, and cultivate their ability to find mathematical problems from surrounding situations and solve problems with what they have learned.

3. Combination of in-class and extracurricular activities. Learning knowledge in class, learning skills after class, and applying theory enable students to master knowledge flexibly.

4. Persistently cultivate students' good study habits. Attach importance to cultivating students' ability to analyze and solve problems. Cultivate students' serious and responsible learning attitude and good habits of careful calculation and inspection in the learning process.

5. Practice makes perfect.

The fifth grade mathematics teaching work plan Volume 1 4 I. Analysis of learning situation;

The fifth-grade students have moved from middle grade to senior grade, and their thinking has also begun to transition from concrete thinking in images to abstract thinking. Their understanding of things around them has risen to a higher level than before, and they have been able to understand things and solve problems by inductive methods. Students have already possessed the elementary knowledge of mathematics, which has laid a good foundation for learning this textbook well. After four years of study, students have basically mastered the learning methods in the first stage of primary school. Most students have good learning routines, like learning mathematics, have a good grasp of what they have learned, and initially learn to use what they have learned to solve practical problems in life. However, students' psychological characteristics and thinking development (students in our school and those who transfer to another school) are also inconsistent, which requires me to pay more attention to teaching students in accordance with their aptitude while facing all students.

Second, teaching material analysis:

(a) Numbers and algebra

1, 1 unit. "fractional division"

This unit includes decimal division, product quotient approximation, cyclic decimal, decimal elementary arithmetic, etc. Combined with the specific situation, I experienced the process of exploring the calculation method of fractional division and experienced the mathematical thought of reduction. Understand that sometimes in life, you only need to ask for the approximate value of the product quotient, master the method of finding the approximate value, and cultivate the consciousness of estimation. Have a preliminary understanding of cyclic decimals, and use four decimal operations to solve simple problems in daily life.

Unit 3 "Multiplication and Factor"

This unit is based on the students' knowledge about the understanding of integers and the four operations of integers. The main contents of learning are: understanding natural numbers, multiples and finding multiples, characteristics of multiples of 2, 5 and 3, factors and finding factors; Prime numbers and composite numbers, odd numbers and even numbers. The study of these knowledge is an important basis for learning common multiples and common factors, conversion, general scores, calculation of four scores and so on. Through this unit, students will experience the activities of exploring the characteristics of numbers, know natural numbers, multiples and factors, find all multiples of a natural number within 100, find all factors of a natural number within 100, and know prime numbers and composite numbers. I will go through the process of exploring the characteristics of multiples of 2, 3 and 5, know the characteristics of multiples of 2, 3 and 5, and know odd and even numbers; Can collect useful information according to the needs of solving problems, carry out induction, analogy and guess, and develop the ability of preliminary reasonable reasoning; In the process of exploring the characteristics of numbers, we can experience the exploration and challenge of mathematical problems in mathematical activities by exploring methods such as observation, analysis and induction or conjecture verification.

Unit 5 "Fractions"

Before learning this unit, students have preliminarily understood the meaning of fractions, can recognize and read simple fractions, can calculate simple addition and subtraction operations of fractions with the same denominator, can preliminarily use fractions to represent things and solve some simple practical problems. On this basis, this unit guides students to further understand the meaning of fractions, and learn to re-understand the knowledge of fractions, the relationship between fractions and division, true fractions, false fractions, the changing law of fractions, common divisor, approximate fractions, common multiples, general fractions and the comparison of fractions. The study of these knowledge is the basis for further study of four fractions calculation and application of fraction knowledge to solve practical problems, and it is the focus of fraction teaching. Through the study of this unit, students will further understand the meaning of fractions, and can correctly describe graphs or simple life phenomena with fractions; Know the true score, false score and band score, understand the relationship between score and division, and compare scores; Can find out the common multiple and minimum common multiple of two natural numbers in 10, can find out the common factor and maximum common factor of two natural numbers, and can divide and divide correctly; Have a preliminary understanding of the application of fractions in real life, and can use the knowledge of fractions to solve some simple practical problems.

(b) space and graphics

1, Unit 2 "Axisymmetry and Translation"

Combined with examples, the phenomenon of translational axial symmetry is perceived; Simple graphics can be drawn on square paper after translation in horizontal and vertical directions; Through observation and operation, we can know the axisymmetric figure and draw the axisymmetric figure of simple figure on square paper.

2. Unit 4 "Polygon Area"

The content of this unit mainly includes: comparison method of plane graphic area, calculation method of parallelogram area, calculation method of triangle area and calculation method of trapezoid area.

3. Unit 6 "Area of Combined Graphics"

The main contents of this unit are: the calculation of combined graphic area, the estimation and calculation of various irregular graphic areas in life. In Unit 2, students have learned the areas of parallelogram, triangle and trapezoid. On this basis, learning combined graphics can not only consolidate the basic graphics learned, but also synthesize the knowledge learned, which is also an important platform to improve students' comprehensive ability.

(3) Statistics and probability

Unit 7 "possibility"

The main content of this unit is: use scores to express possibilities, and use scores to express possibilities in daily life. Let students know more about the close relationship between mathematics and daily life.

Third, the teaching objectives and requirements

1. Experience the process of observation, analysis, comparison, induction, guessing and verification, further cultivate students' sense of numbers, improve their ability to solve practical problems by using mathematical knowledge, and experience the exploratory and challenging nature of mathematical problems in mathematical activities.

2. Through observation, operation, reasoning and other activities, develop the concept of space, experience the strategy of comparing areas in various ways and infiltrate the "breaking the whole into parts". Through the exploration activities such as operation, rotation and translation, we can understand the idea of "transformation" and express it with symbols and language, so as to improve students' ability to use various strategies flexibly to solve practical problems.

3. Experience the possibility of events in operational activities, and be able to use what you have learned to solve problems in real life.

4. Experience the close relationship between mathematics and life, improve the ability of information collection, processing, modeling, analysis and problem solving, and enhance the awareness of mathematics application.

5. Understand the problem-solving strategies and the relationship between figures and numbers, and develop the ability of induction and generalization.

6. Understand the extensive relationship between mathematics and life through mathematical activities, and gain the ability to solve problems and cooperate with others.

Fourth, the main teaching measures:

1. Guide students to learn mathematics from life experience and feel that there is mathematics everywhere in life.

2. Strengthen intuitive demonstration and practical operation, and guide students to actively participate in the process of knowledge formation and feel the successful experience. Fully introduce modern educational resources such as distance education and network education into the classroom to serve the teaching, improve the intuition and visualization of classroom teaching, and lay the foundation for improving the teaching quality.

3. Stimulate students' interest in learning mathematics, pay attention to cultivating students' awareness and habits of autonomous learning, respect students' individual differences, encourage students to choose their own learning methods, and guide students to learn to learn in practice.

4. Pay attention to cultivating students' thinking flexibility and innovative consciousness. Encourage students to organize what they have learned; Further reflect on the process of wrong questions or activities, and encourage students to find and ask new questions; Ask more challenging questions; Further sharing algorithm diversification; Further seek the explanation of calculation;

5. Follow the laws of students' physical and mental development and mathematics learning, and choose teaching strategies. Pay attention to let students participate in group cooperative learning and cultivate students' awareness of cooperation and communication.

6. Strengthen guidance and auxiliary work, especially pay more attention to underachievers, ask more questions in class, care more after class, and strive to improve homework. Make them further establish their confidence in learning, thus promoting the improvement of the teaching quality of the whole class.

The fifth grade mathematics teaching work plan volume 1 5 teaching content:

1, understand the negative number 6, decimal multiplication and division (1)

2, polygon area calculation 7, hectares and square kilometers

3, know decimal 8, decimal multiplication and division method (2)

4. Decimal addition and subtraction. statistics

5, find the method 10, sort out the review.

Teaching objectives:

1, knowledge and skills:

(1) Enable students to experience the expansion of the concept of numbers in specific situations and gradually form an understanding of related concepts; By exploring the calculation rules and methods of the four decimal places, we can further understand the significance of the operation and correctly calculate and mix the four decimal places. Actively participate in the activities of exploring and discovering laws, improve the ability to abstract mathematical problems and quantitative relations from practical problems, and enhance the awareness of using learned knowledge to solve simple problems in real life.

(2) By observing the plane figure and simple transformation, let students experience the process of exploring the area calculation formula and master the area calculation formula of related figures. Understand the larger land area unit under specific circumstances, and initially form the concept of the actual size of the corresponding area unit.

(3) Through observation and operation, students can initially understand the description of data information in composite statistical tables and composite bar charts, and can make corresponding comparison and analysis. Through the actual investigation activities, we can further master the methods of collecting, sorting and describing data and enhance the statistical concept.

2. Mathematical thinking:

(1) Combined with the recognition of numbers, the sense of numbers is further developed.

(2) Develop the concept of space by combining the measurement and calculation of area.

(3) Combining the teaching of area formula and the law of simple periodic phenomena, we can further cultivate the sense of symbols.

(4) Develop the concept of statistics based on the understanding of statistical tables (charts).

(5) Develop reasoning ability in combination with relevant teaching contents.

Step 3 solve the problem:

(1) Use what you have learned to solve problems such as area calculation, simple statistics, four decimal operations, and simple periodic phenomena in real life.

(2) Being able to find and put forward simple mathematical problems in real situations.

(3) Be able to actively explore ways to solve problems and experience strategies to solve problems.

(4) Further learn to cooperate with others and have a correct attitude towards cooperation.

(5) Be able to review and reflect on the learning process, and explain or evaluate the learning results.

4. Emotions and attitudes:

(1) can actively participate in all kinds of mathematics activities, gain successful experience continuously, and further establish self-confidence in learning mathematics well.

(2) Experience the process of exploring mathematical knowledge and laws, and feel the value of mathematical knowledge and methods.

(3) With the help of teachers and classmates, try to overcome the difficulties encountered in learning.

(4) Learn mathematics with realistic materials and use mathematics in real life to further feel the close relationship between mathematics and daily life, and constantly enhance the consciousness of learning and using mathematics.

Jiangsu education printing plate GB elementary school fifth grade first volume mathematics teaching plan

(5) By reading "Do you know" and other contents, we can understand the background of relevant mathematical knowledge, understand the role of mathematics in the development of human history, constantly expand our horizons and enhance our sense of innovation.

Brief analysis of teaching materials;

1, number and algebra (unit 1, 3, 4, 5, 6, 8)

This textbook mainly teaches the knowledge of integers from grade one to grade four, so that students can master the four operations of integers and apply relevant knowledge and methods to solve some simple practical problems. This textbook teaches the initial understanding of negative numbers, the meaning, nature and operation of decimals, which involves the expansion of students' understanding of logarithms. It is helpful to consolidate and deepen the understanding of the learned integer knowledge, to discover and solve more practical problems in real life, and to prepare for the systematic study of fractions.

In addition, arranging the exploration and application of laws in simple periodic phenomena will also play a positive role in cultivating students' interest in exploring mathematical laws and further improving their thinking level.

2. Space and Graphics (Units 2 and 7)

Students have a preliminary concept of area, mastered the calculation formulas of rectangular and square areas, and learned about triangles, parallelograms and trapeziums, which laid the foundation for students to further study the calculation of polygonal areas. Through the teaching of polygon area calculation formula, we can further deepen our understanding of the concept of area and promote our understanding of several basic graphic features. In the past, the units of teaching area were square meters, square decimeters and square centimeters, which could only measure the surface area of relatively small plane figures and objects, so it was very inconvenient to measure the land area. To this end, this textbook arranges teaching in hectares and square kilometers, which not only enables students to understand the area unit more comprehensively, but also helps students solve more practical problems in daily life and production.

3. Statistics and Probability (Unit 9)

This textbook arranges teaching composite statistical tables and composite histograms. Compared with single statistics table and single statistics chart, double statistics table and double statistics chart have large capacity and can present more data information at the same time. After teaching complicated statistics and charts, students can investigate, count and analyze some slightly complicated real-life phenomena and problems. This is very beneficial to the improvement of students' statistical ability and awareness.

4, practice and comprehensive application field (know what is the campus green area of the surrounding families)

(1) Pay more attention to the infiltration and application of mathematical thinking methods.

"What is the area?" And the "Shift-Shift-Count-One" in What's the Area permeates the original idea of equal area deformation, which lays an important foundation for further exploring the calculation method of variable area. "Thinking and Calculation" in "Campus Greening Area" focuses on transforming slightly complicated plane graphics into common basic graphics through the method of "cutting and mending".

(2) Pay more attention to practical application.

Estimate the surface area of leaves, palms and other objects; Calculate the lawn area and design the "campus green space" flower bed; The survey activities designed for urban students and rural students to understand the surrounding families are very close to students' real life, which is convenient to guide them to carry out mathematics activities in familiar life situations and can effectively cultivate students' awareness of mathematics application.

This textbook also arranges more than a dozen "Do you know" and 8-to-think questions in combination with the teaching content, aiming at increasing the flexibility of mathematics content, meeting the needs of different regions and students, and making each student develop as much as possible in mathematics.