1, study habits and interests

There are 54 students in Class 4 (1) and 55 students in Class 4 (2). Generally speaking, good study habits have taken shape. Most students can finish their homework well and have a high interest in learning mathematics. However, the phenomenon of absent-mindedness still occurs from time to time in class, and further training is needed. Individual students have poor foundation and low enthusiasm for learning, which needs to be strengthened. In class, I like hands-on participation, group discussion and problem-solving learning methods.

2. Basic knowledge and skills

(1) Most students have mastered the knowledge learned in the first half of the semester and can use this knowledge to solve simple practical problems.

(2) Some students are flexible in thinking and have the spirit of revealing the relationship between knowledge and exploring laws.

(3) It is still difficult for individual students to leap from knowledge to practice.

Second, the teaching objectives

1, study habits:

(1) Further cultivate students' good habit of studying hard and using their brains.

(2) Continue to strengthen discipline education.

(3) Cultivate students' analytical, comparative and comprehensive abilities.

(4) While learning mathematics knowledge, cultivate students' love for the motherland and science.

(5) Listen carefully, finish your homework on time and keep it clean.

(6) Develop good study habits and attach importance to students' test habits.

2, knowledge and skills:

(1) Let students experience the process of abstracting quantitative relations from specific problems, exploring algorithms and operation rules, mastering corresponding calculation methods and necessary calculation skills, understanding and mastering operation sequence, and discovering some operation rules; The existing knowledge of connection number knows some relations between integers and some characteristics of integers; Combined with solving practical problems, experience the meaning of expressing numbers with letters.

(2) According to the actual situation, through observing, operating and exploring the characteristics of related graphics and the simple transformation process of graphics, we can know some simple plane graphics and their characteristics, and understand the symmetry of graphics and the simple transformation of graphic position relationship; The concept of capacity size is initially formed through examples, and the meaning and measurement unit of capacity are understood.

(3) Experience the function of broken-line statistical chart in combination with specific problem situations, master the method of expressing data with broken-line statistical chart, and analyze the corresponding statistical results according to the data changes in statistical chart; Experience the activity of choosing statistical charts according to the needs of specific problems, experience the characteristics of bar statistical charts, and initially learn to choose statistical charts according to actual needs.

3, mathematical thinking:

(1) In the process of exploring calculation methods by using existing knowledge, activities such as speculation, discussion, explanation and communication are fully carried out to develop reasoning ability.

(2) In the process of observing and exploring some relations and characteristics between integers, develop the ability of abstraction, generalization and preliminary deductive reasoning.

(3) Be able to analyze and explain mathematical problems related to real life, experience the process of expressing numbers with letters, express operation rules and summarize quantitative relations with formulas containing letters, and develop abstract thinking and symbolic sense.

(4) In the process of exploring the characteristics of some plane graphics, transforming graphics and designing patterns, the image thinking and space concept are further developed.

(5) Experience the process of statistical processing of data in real problems, reasonably choose corresponding forms to describe the data, analyze and explain the data, and develop preliminary statistical concepts.

(6) In the process of establishing mathematical concepts, obtaining mathematical conclusions, developing mathematical laws and solving practical problems, we should fully carry out activities such as observation, conjecture, experiment, analogy and induction, make systematic thinking, and make reasonable and convincing explanations and explanations for the conclusions.

4. Solve the problem:

(1) can extract mathematical problems from real situations and use the learned mathematical knowledge to solve them; The result of the problem can be expressed by a formula containing letters, and explained and illustrated.

(2) Be able to use relevant calculation to solve some simple practical problems, solve the practical problems of relatively simple three-step calculation, and communicate their own problem-solving ideas with others.

(3) You can measure the amount of some liquids with a measuring cup or a self-made measuring tool.

(4) We can choose a stick with proper length to build a triangle, judge what a triangle is, calculate the degree of the third angle according to the two known angles of the triangle, and calculate the degree of the bottom angle (or top angle) according to the top angle (or bottom angle) of the isosceles triangle.

(5) Can judge parallelogram and trapezoid, find examples of parallelogram and trapezoid from life, draw parallelogram and trapezoid with grid paper, and measure or draw the height of parallelogram and trapezoid.

(6) Simple graphics can be translated or rotated to a specified position, and patterns can be flexibly designed on the grid paper by means of symmetry, translation and rotation.

(7) You can use a calculator to explore the changing law of product and the law of constant quotient, and explain the conclusion.

(8) Being able to actively collect data and information from life, reading some simple statistical charts in relevant media, designing simple statistical activities, using statistical methods to solve some practical problems, and choosing appropriate statistical charts to represent corresponding data according to problems.

(9) Learn and have some problem-solving strategies to realize the diversity of problem-solving strategies; Under the guidance of teachers, reflect on their own learning process and develop subjective consciousness.

5. Emotions and attitudes:

(1) can actively participate in mathematics learning activities, actively explore and discover mathematics knowledge, gain successful experience, be curious about the internal relationship between mathematics facts and mathematics, and establish self-confidence in learning mathematics well.

(2) Understand and know the content of mathematics in specific situations, and experience the connection between mathematics and daily life; Apply mathematical knowledge and skills to solve some practical problems in life and feel the value and function of mathematical knowledge.

(3) In the process of exploring mathematical knowledge, feel the orderliness, rigor and certainty of mathematical conclusions in the process of mathematical thinking, initially experience the scientific method of exploring problems, and initially form the consciousness and attitude of scientifically exploring problems.

(4) Being able to take the initiative to overcome the difficulties encountered in mathematics learning and having the experience of overcoming difficulties; Can cooperate and communicate with others, enthusiastically participate in the discussion of mathematical problems, and have the consciousness of questioning and reflection; Find mistakes and take the initiative to correct them.

(5) Read some background materials of mathematical knowledge actively and seriously, feel the role of mathematics in social development, and further form positive feelings about mathematics.

Third, this textbook is heavy and difficult.

Key point: the strategy to solve the problem.

Difficulties: Understanding of parallelogram, triangle and trapezoid.

Fourth, teaching measures.

In view of the age characteristics of students and the importance and difficulty of this textbook, the following teaching measures should be taken:

1, create a democratic and harmonious learning atmosphere, let students truly become the masters of learning and inspire 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

In the form of autonomous learning, students can learn by combining hands and brains, discussing and answering questions, so as to cultivate students' ability to find mathematical problems from the surrounding situation 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 make students

Really master knowledge and use it flexibly.

4. Persistently cultivate students' good study habits. Attach importance to cultivating students' analytical problems

Ability to 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.