There are also application problems.
2. Unit conversion
3. Algebra Elementary
4. Solve the equation
5. Proportion
6. Preliminary geometry
It's the upper module. In the last half month, the most important thing is to review the basic knowledge and give up the difficult problems. What needs to be emphasized is that we should find out where the weaknesses of our knowledge are, focus on breaking through the weaknesses, review according to the outline, do junior high school examination questions in recent years, understand the difficulty of the questions, return to the basic knowledge of the textbooks, and summarize some good simulation questions recently, especially the wrong questions in the past, and whether we have mastered them now.
Key points of examination outline review
(A) "Number and Algebra" section
Understanding of 1 figure
(1) Understand the concepts of natural numbers and integers, the related counting units and the advance rate between adjacent units. Can read and write multiple digits skillfully, and will rewrite large numbers into numbers with "ten thousand" or "hundred million" as required, and take approximate values.
(2) Understand the meaning of decimals and be able to read and write decimals correctly; Understand the numerical order of integers and decimals; Mastering the nature of decimals and comparing the sizes of decimals will rewrite large numbers into decimals in units of "ten thousand" or "hundred million" and approximate the number of decimals. A preliminary understanding of cyclic decimal.
(3) Knowing multiples and factors can find all multiples of a natural number within 10 (not exceeding 100) and all factors of a natural number within 100, know the characteristics of multiples of 2, 5 and 3, and know odd and even numbers, prime numbers and composite numbers. Knowing the common multiple and minimum common multiple, common factor and maximum common factor, we can find the maximum common factor and minimum common multiple of two numbers within 20.
(4) Understand the meaning of fractions and percentages, master the basic properties of fractions, correctly transform fractions, decimals and percentages, and correctly compare their sizes.
(5) Understand positive and negative numbers and know that 0 is neither positive nor negative. Can read and write positive and negative numbers correctly, and can express simple problems in daily life with negative numbers.
2. Digital operation
(1) Understand the significance of the four operations of addition, subtraction, multiplication and division, master the rules and operation sequence of the four operations, and be able to perform the four operations accurately and skillfully, and at the same time, use the relevant operation rules and rules reasonably and flexibly to perform simple operations. Written multiplication, division, multiplier and divisor generally do not exceed two digits, and elementary arithmetic generally does not exceed three steps.
(2) Learn to estimate some simple operation results of addition, subtraction, multiplication and division to improve the accuracy of calculation. Be able to use calculator correctly and know some basic operations.
(3) It can correctly analyze the quantitative relationship of related practical problems and solve them correctly, so as to improve students' ability to apply knowledge to solve practical problems.
3. Formulas and equations
Will use letters to represent numbers. If we understand the meaning of the equation, we can correctly solve simple equations and solve some simple practical problems by arranging the equations.
Explore the law
Understand the simple laws of interval arrangement, collocation, periodicity, product change and quotient invariance, and can use these laws to solve some practical problems.
5. Positive proportion and inverse proportion
(1) Understand the meaning and nature of ratio, and can correctly find the ratio and simplify it. Understanding the meaning and nature of proportion is helpful to solve the problem of proportion. Will answer practical questions about proportional distribution.
(2) Understand the enlargement and reduction of graphics, understand the meaning of scale, find the scale of the plan, and find the corresponding distance and actual distance on the map according to the given scale.
(3) Knowing the quantities that are directly proportional and inversely proportional, we can judge whether these two related quantities are directly proportional or inversely proportional according to their meanings.
6. Strategies for solving problems
Learn to use strategies such as list, drawing, enumeration, reduction, replacement and transformation to analyze the quantitative relationship of problems, determine the thinking of solving problems and solve problems effectively.
(b) "Space and graphics" section
1. Lines and angles
Understand and correctly distinguish rays, straight lines and line segments; Know the angle, can skillfully classify the angle, and can correctly measure the angle and draw the angle of the specified degree; Know that parallel lines and vertical lines can be drawn correctly and correctly understand the distance from points to straight lines.
2. Plane graphics
(1) If you know the triangle, you will classify it correctly. If we know that the sum of the internal angles of a triangle is 180, we can solve some practical problems by using the characteristics of isosceles triangle and equilateral triangle. Knowing the parallelogram and trapezoid can correctly determine the heights of triangles, parallelograms and trapezoid at the specified base. And can correctly calculate the area of triangle, parallelogram and trapezoid, and solve some practical problems; Know the circle and draw it correctly according to the requirements. Can calculate the circumference and area of a circle, and can solve some practical problems related to the circle (including the area of combined graphics).
(2) Be able to correctly calculate the relevant land area.
3. Stereo graphics
(1) Understanding cuboids, cubes and their development diagrams, mastering the basic characteristics of cuboids and cubes and the calculation methods of surface area and volume can solve some simple problems related to the calculation of surface area and volume.
(2) Understanding cylinders and cones, mastering their basic characteristics, mastering the calculation method of lateral area and surface area of cylinders and the volume formulas of cylinders and cones can solve some related practical problems.
(3) Understand the meaning of volume and its common units, and have the actual size concepts of 1 cubic meter, 1 cubic decimeter and 1 cubic centimeter, and correctly convert the adjacent unit volumes.
4. Quantity and measurement
(1) Master the commonly used units of measurement such as quality, length, area, volume, volume and time, memorize the progress between them and simply rewrite them.
(2) be able to fill in the appropriate unit name correctly according to the requirements, and solve some simple practical problems correctly.
5. Graphics and transformations
(1) can correctly judge whether a figure is an axisymmetric figure, draw the symmetry axes of some simple axisymmetric figures, and draw the other half of the axisymmetric figure on grid paper.
(2) Understand the translation and rotation of graphics, and be able to translate simple graphics horizontally or vertically on grid paper, and rotate right-angled triangles, rectangles and squares by 90.
(3) Be able to enlarge and reduce the graphic according to a certain proportion, and correctly say what proportion is to enlarge the original graphic and what proportion is to reduce the original graphic. And can correctly distinguish the relationship between the changed graphic area and the original graphic area.
6. Graphics and location
(1) Understand the meaning of number pairs, and use number pairs to indicate the position of an object in a specific situation.
(2) Understand the meaning of northeast (west) and southeast (west), and initially master the method of determining position by direction and distance. You can describe a simple road map.
(3) Statistics and probability
1. Statistics
(1) Understand the general process of statistical activities. Knowing the ways and means of data collection and arrangement can analyze and solve some simple practical problems with the help of statistical results.
(2) Be able to correctly draw simple (composite) bar charts and broken-line statistical charts (given horizontal and vertical axes), know the fan-shaped statistical charts, understand their characteristics, correctly observe these charts, and use statistical data to solve practical problems.
(3) Understanding the meaning of mode and median, we will find the mode and median of a set of simple data; Can explain the practical significance of average, median and mode, can choose appropriate statistics to represent the characteristics of a group of data according to specific problems, understand the characteristics of different statistics, and understand their functions in describing data.
2. Possibility
(1) Feel the possibility of events, experience the possibility and fairness of the rules of the game, distinguish whether the rules of the game are fair, illustrate the possibility of events with examples, and initially learn to design the fair rules of simple games.
(2) Master the method of expressing the possibility of simple events in a specific situation with scores, which will indicate the size of the possibility, and design corresponding activity plans according to the requirements of the possibility of events.
(4) Comprehensive application
Can comprehensively use the knowledge learned to solve some problems in daily life and improve the ability to analyze and solve problems (refer to some exercises provided by the general evaluation breakthrough, and do not ask for requirements when reviewing).