There are 72 students in this class, and the student base is weak. However, through last semester's study, students have a strong interest in learning and their study habits have taken shape.

Second, a brief analysis of teaching materials:

The content of this textbook is divided into three parts: cylinder and cone, direct proportion and inverse proportion, and general theory, which includes four units.

(1) cylinder and cone: including four topics: surface rotation, surface area of cylinder, volume of cylinder and volume of cone.

(2) Direct proportion and inverse proportion: including seven topics: variation, direct proportion, drawing, inverse proportion, observation and exploration, and scaling of figures and scales.

(3) General review: including number and algebra, space and graphics, statistics and probability, and problem-solving strategies.

Third, the teaching purpose and requirements:

1, so that students can know cylinders and cones, master their characteristics, know the bottom, sides and heights of cylinders, know the bottom and heights of cones, find the lateral area and surface area of cylinders, and master the volume calculation methods of cylinders and cones.

2. Make students understand and master the meaning of positive proportion and inverse proportion, and correctly judge whether the two quantities are in positive proportion and inverse proportion. Learn to use number pairs to determine the position of points, and know how to zoom in and out of graphics according to a certain proportion. Only by understanding the meaning of scale can we correctly calculate the scale of the plan. Improve students' ability to solve problems by using existing knowledge and skills, and cultivate students' awareness of applying mathematics and good habits of thinking about problems seriously.

3. By solving sports-related problems in life, let students learn to use relevant knowledge and skills including formulas and equations to solve problems, develop abstract thinking ability and problem-solving ability, and further cultivate students' consciousness of applying mathematics.

4. By solving problems related to science and technology in life, students can broaden their horizons in mathematics, cultivate scientific spirit and realistic attitude, further develop their thinking ability, improve their problem-solving ability and enhance their awareness of applied mathematics.

5. Make students systematically and firmly grasp the basic knowledge about integers and decimals, fractions and percentages, simple equations, ratios and proportions; Have the ability to carry out four operations of integer, decimal and fraction, and use the simple algorithm to calculate reasonably and flexibly to further improve the calculation ability; Able to solve simple equations; Get into the habit of checking.

6. Make students consolidate the appearance of some units of measurement they have learned, further clarify the application scope of various units of measurement, firmly grasp the progress between the units they have learned, and skillfully convert simple names and numbers.

7. Make students firmly grasp the characteristics of the geometric shapes they have learned, further master the derivation process of some calculation formulas and their relationships, be able to skillfully calculate the perimeter, area and volume of some geometric shapes, consolidate the simple drawing and measuring skills they have learned, and further develop students' spatial concepts.

8. Make students master the preliminary knowledge of statistics, understand and draw simple statistical charts, make simple analysis of statistical data, and calculate the average problem.

9. Make students firmly grasp some common quantitative relations and solutions of applied problems they have learned, and be able to flexibly use what they have learned to independently answer some simple practical problems in their lives, thus further cultivating students' thinking ability.

Fourth, teaching measures:

1, further cultivate the ability of reasonable and flexible calculation;

2. Improve students' analytical, comparative and comprehensive abilities;

3. Cultivate the ability of abstract generalization, judgment and reasoning, and transfer analogy;

4. Cultivate the flexibility and agility of thinking.

5. Cultivate the ability to comprehensively apply knowledge to solve practical problems.

6. Further develop students' concept of space.

7. Strengthen oral practice, learn to answer simple elementary arithmetic of integers, fractions and decimals, and gradually improve students' four operational abilities.

8. Be able to master some common quantitative relations and solutions to application problems, and gradually improve the ability to solve application problems.

9. Increase the chances of hands-on operation, so that students can get the correct graphic representation and correctly calculate the perimeter, area and volume of some geometric shapes.

10, can grasp the progress between units, and can correctly convert names and numbers.

The arrangement of teaching time of verbs (abbreviation of verb)

(1) 10 class hours for cylinders and cones

(2) Positive and negative ratio 15 class hours

Always review 40 class hours.

Number and algebra 20 class hours

Space and graphics 15 class hours

Statistics and Probability Lesson 3

Strategies for solving problems 2 class hours