Find the knowledge points and scores of mathematics in Tianjin 20 12 senior high school entrance examination.
(a) examination subjects, scores and test paper name
The examination subjects are Chinese, mathematics, foreign languages, physics and chemistry. Full marks of Chinese and Mathematics in foreign languages 120, physical chemistry 100, physical education and health 30, with a total score of 590.
Test paper name: "20 12 Tianjin junior high school graduates' academic examination ×× test paper".
(2) Examination form
Chinese, mathematics, foreign languages, physics and chemistry are all closed-book exams. Sports and health consists of physical education class scores, sunshine sports scores, students' physical health standards and unified physical education tests. Specific requirements shall be deployed separately.
(3) Examination time
Chinese 120, mathematics and foreign languages 100; Physics and chemistry are 70 minutes each.
(d) question type and difficulty ratio
Chinese accounts for about 28%, mathematics for about 25%, foreign languages for about 63%, physics for about 32% and chemistry for about 30%. The foreign language listening test accounts for about 25% and the test time is 20 minutes.
The difficulty ratio of each subject is 7∶2∶ 1.
(5) Examination organization
Academic examinations are organized and implemented by the Municipal Education Admissions Examination Institute under the leadership of the Municipal Education Commission.
Second, the scope of the examination
(1) Language: According to the relevant requirements of the Chinese Curriculum Standard for Full-time Compulsory Education of the Ministry of Education, refer to the experimental Chinese textbooks selected by our city for junior and middle school curriculum standards.
(2) Mathematics: According to the relevant requirements of the third phase of the Mathematics Curriculum Standard for Full-time Compulsory Education of the Ministry of Education, refer to the experimental mathematics textbooks of the curriculum standard for junior and middle schools selected by our city.
(3) Foreign Language: According to the relevant requirements of the English Curriculum Standard for Full-time Compulsory Education of the Ministry of Education, refer to the experimental English textbooks for junior and middle schools selected by our city.
(4) Physics: According to the "Physical Curriculum Standards for Full-time Compulsory Education" of the Ministry of Education, refer to the experimental physics textbooks for junior and middle school curriculum standards selected by our city.
(5) Chemistry: According to the full-time compulsory education chemistry curriculum standards of the Ministry of Education, refer to the experimental chemistry textbooks selected by our city for junior and middle schools.
Third, the junior high school graduation standard
The academic examination and examination results of junior high school graduates are the main basis to measure whether students meet the graduation standards. The qualification criteria for junior high school graduation are: 40% of academic examination scores in Chinese, mathematics, foreign languages, physics, chemistry, physical education and health, combined with 60% of usual scores, the total score reaches 300 points; All the test scores of other subjects are qualified (including make-up exams).
Fourth, physical chemistry experiment.
(1) physical experiment examination guidance
1。 Scope of investigation: According to the requirements of "Physical Curriculum Standard for Full-time Compulsory Education" issued by the Ministry of Education, as well as the opening situation of junior high school physical experiment courses in our city, and considering the operability of the experimental examination, Tianjin junior high school physical experiment examination will focus on some of the following four experiments:
(1) Study the imaging law of convex lens;
(2) measuring the electric power of the small bulb;
(3) Measuring the density of irregular solid and liquid with a balance and a measuring cylinder;
(4) Measure the mechanical efficiency of the inclined plane.
2。 Inspection method and evaluation:
(1) Under the leadership of the county education bureau, the county teaching and research section unifies the proposition, and the county recruitment office and the teaching and research section are responsible for organizing the implementation.
(2) Students draw lots five minutes before the exam to determine the questions to be tested and prepare for the corresponding experimental stage.
(3) Examination time 15 minutes.
(4) Test scores are divided into qualified and unqualified. Full score 10, and above 6 points are qualified.
3。 Examination points and requirements:
(1) experimental name: study the imaging law of convex lens.
Inspection points and requirements
When the optical bench instrument is installed, candles, convex lenses and light screens are placed from left to right, and the focal point f and twice the focal point are recorded on the optical holder.
( 1)
Adjust candles and convex lenses
Adjust the heights of the convex lens and the light screen to make their centers at the same height as the center of the candle flame (1).
Relative position of candle, convex lens and light screen ① The candle is outside the double focal length of the convex lens, and the light screen is placed between the double focal length and the double focal length (1 min).
(2) The candle is between the first focal length and the second focal length of the convex lens, and the light screen is placed outside the second focal length (1 min).
③ Put the candle in a focal length (1) and observe the virtual image with your eyes.
Image sharpness adjustment ① When an inverted real image is formed, the image is bright and clear (1 min).
② When the virtual image is formed, the eye observation position is correct (1).
The measurement of object distance and image distance can be accurately measured from optical bench (or with a ruler) and recorded (1 min).
Experimental conclusion ① u > F, into an inverted, reduced real image, such as F < v & lt2f.
②f & lt； When u & lt2f is inverted, enlarge the real image as if it were in v & gt2f.
③u & lt； F, you can see a vertical magnified virtual image (1 min) through the lens.
Experimental literacy ① Be serious and observe discipline.
(2) After the experiment, arrange the instruments in order (1)
(2) Experimental name: Measuring the electric power of small bulbs.
Inspection points and requirements
Experimental circuit ① The experimental circuit diagram is correct and standard.
(2) Be proficient in connecting circuits.
(3) Close when connecting (1)
The ammeter is connected in series in the circuit under test.
② The positive and negative terminals are connected correctly.
③ Reasonable range selection (1)
The voltmeter is connected in parallel at both ends of the bulb to be measured.
(2) The positive and negative terminals are connected correctly.
③ Reasonable range selection (1)
The sliding rheostat is correctly connected with the terminal.
② Before use, the slider is at the position of maximum resistance (1).
Adjust the rheostat selection voltage value ① Move the sliding vane of the sliding rheostat to adjust the voltage at both ends of the small bulb respectively.
(1) rated voltage, (2) 1.2 times rated voltage; (iii) Below the rated voltage
② Skilled in action.
(3) Disconnect the switch in time after reading (2 points)
The ammeter reading is correct (1)
Data processing ① The data record table is designed reasonably.
② Correct data recording and processing (1)
Experimental conclusion The power consumption of the light bulb can be judged according to its brightness, and the factors related to the power consumption of the light bulb can be analyzed according to the experimental data (1 min).
Experimental literacy ① Take a serious attitude and observe discipline.
(2) After the experiment, arrange the instruments in order (1)
(3) Experimental name: Measuring the density of irregular solid and liquid with balance and measuring cylinder.
Inspection points and requirements
How to use a measuring cylinder or a measuring cup ① to observe the measuring range and how much cm3 each battery represents.
② When reading, the line of sight should be level with the concave surface of water (1).
Measuring the density of solids ① Weigh the mass of solids with a balance (1).
② Measure the volume of liquid with a measuring cylinder (1).
③ Immerse the solid in the liquid in the measuring cylinder and measure the total amount of liquid and solid (1).
④ Form design, data recording and processing are correct (1 min)
Measure the density of liquid ① Weigh the total mass of beaker and liquid with a balance (1).
② Pour part of the liquid in the beaker into the measuring cylinder, and measure the volume of this liquid (1).
③ Weigh beaker and residual liquid (1)
④ Form design, data recording and processing are correct (1 min)
Experimental literacy ① Take a serious attitude and observe discipline.
(2) After the experiment, arrange the instruments in order (1)
(4) Experimental name: Measuring the mechanical efficiency of inclined plane.
Inspection points and requirements
Assembly of inclined plane Assemble the inclined plane correctly according to the drawing, and keep the spring dynamometer and the weight in a straight line (1 min).
Data measurement and acquisition ① Pull the spring dynamometer at a uniform speed and correctly read the pulling force F value (2 points).
② Measure the height h( 1 min) of the inclined plane correctly with a scale.
(3) Measure the length of the inclined plane s (1) with a scale correctly.
Data processing ① Record relevant data correctly (1 min)
② Correct calculation of useful work (1)
③ Correct calculation of total work (1 min)
④ Correct calculation of mechanical efficiency (1)
Experimental literacy ① Take a serious attitude and observe discipline.
(2) After the experiment, arrange the instruments in order (1)
(2) Examination and guidance of chemical experiments
1。 Scope of investigation: According to the requirements of Chemistry Curriculum Standard for Full-time Compulsory Education issued by the Ministry of Education, as well as the opening situation of junior high school chemistry experiment courses in our city, and considering the operability of experimental investigation, Tianjin junior high school chemistry experiment investigation will focus on some of the following four experiments:
(1) heating potassium permanganate to generate oxygen, and collecting oxygen through exhaust.
(2) Carbon dioxide is produced in the laboratory, which proves that the gas produced is carbon dioxide.
(3) Determination of pH value of sodium hydroxide and hydrochloric acid solution and experimental exploration of neutralization reaction.
(4) Study on eggshell composition.
2。 Examination method:
(1) The examination work is organized and implemented under the leadership of the district and county education bureaus, and the district and county admissions offices and teaching and research sections are responsible for organizing the implementation.
(2) preview, ideological education for all ninth-grade students, requiring students to seriously participate in the review of experimental operations and experimental examinations; On the basis of strengthening education (observing laboratory rules) and careful organization and arrangement, the laboratory is open to students from/kloc-0 to 2 weeks before the exam. At the same time, teachers should be present to guide the review and do a good job of demonstration and explanation.
3。 Examination process and evaluation:
(1) Students draw lots five minutes before the exam to determine the exam questions, and make preparations at the corresponding experimental stage.
(2) The invigilator can prompt or correct the operation or wrong operation that students can't complete, so as not to affect the later operation.
(3) Examination time 15 minutes.
(4) Test scores are divided into two grades: passing and failing. Full score 10, 6 or above is a pass, otherwise it is a failure.
4。 Requirements and key points of inspection:
The experimental examination mainly evaluates the results from two aspects: experimental operation and experimental habits, focusing on the experimental operation skills. Among them, experimental operation refers to students' operating skills and observation skills within the experimental scope, which requires accurate description of the main experimental phenomena and correct experimental operation. Experimental habit refers to the basic requirements that students should meet in experiments. Including observing discipline, being serious, caring for instruments, standardizing operation, seeking truth from facts, and keeping the desktop clean and tidy.
(1) experimental name: heating potassium permanganate to generate oxygen, and exhausting to collect oxygen;
Project assessment score
2 points for experimental operation, phenomenon and conclusion of experimental scheme.
Experimental operation ① Check the air tightness of the device for 2 points.
(2) 2 points will be deducted for the use of drugs and cotton balls.
(3) The instrument is fixed, and 2 points will be deducted if oxygen occurs.
Take good care of the instrument in the experiment habit, and the desktop is clean and tidy. Two points.
Total score 10.
(2) Name of the experiment: carbon dioxide is produced in the laboratory, which proves that the gas produced is carbon dioxide;
Project assessment score
2 points for experimental operation, phenomenon and conclusion of experimental scheme.
Experimental operation ① Check the air tightness of the device, and fix the instrument for 2 points.
② Deduct 2 points for solid and liquid drugs.
(3) 2 points will be deducted for gas collection and gas prevention.
Take good care of the instrument in the experiment habit, and the desktop is clean and tidy. Two points.
Total score 10.
(3) experiment name: the experiment of determining the pH value of sodium hydroxide and hydrochloric acid solution and the neutralization reaction;
Project assessment score
2 points for experimental operation, phenomenon and conclusion of experimental scheme.
Experimental operation ① Measurement of pH value of solution 2 points
(2) Use liquid medicine and indicator, and 2 points will be deducted for color change of indicator.
(3) Use dropper and test tube to oscillate, and deduct 2 points.
Take good care of the instrument in the experiment habit, and the desktop is clean and tidy. Two points.
Total score 10.
(4) Experimental name: Exploration of eggshell composition.
Project assessment score
2 points for experimental operation, phenomenon and conclusion of experimental scheme.
Experimental operation ① Deduct 2 points for solid and liquid drugs.
(2) For the usage information of vinegar, 2 points will be deducted for the usage of dropper.
③ Apply clarified limewater on the glass to prove the gas and infer the main components. Two points.
Take good care of the instrument in the experiment habit, and the desktop is clean and tidy. Two points.
Total score 10.