Question 2: the significance of the proportion of sixth grade; Analysis of learning situation of teaching plan; How to write the content of "the meaning of proportion"
Textbook analysis
This part of the content is learned on the basis that students have learned the meaning, simplification, calculation and application of ratio. Through the study of this lesson, students will master the meaning of proportion, which will lay a good foundation for students to learn the basic nature of proportion, the significance and application of positive and negative proportion, and even continue to learn positive and negative proportion in junior high school.
Analysis of learning situation
There are 92 students in this class, including 49 boys and 43 girls.
2. The class size of this class is large and the students' foundation is poor, so I divide the meaning and basic nature of proportion into two classes, and this class mainly studies the meaning of proportion.
3. In this class, I want to create a situation of inquiry learning for students from the life situation; Connecting with the reality of life, let students experience the close relationship between mathematics and life; Change students' learning style and use cooperative learning to cultivate students' cooperative ability; Use multimedia teaching methods to increase the novelty of teaching and guide students to participate in the whole process of learning with multiple senses.
Teaching objectives
1. Knowledge and skills: Understand the meaning of proportion and know the names of all parts of proportion.
2. Process and method: Let students experience the process of exploring the meaning of proportion, and judge whether two proportions can form a proportion by using the meaning of proportion.
3. Emotional attitude and values Emotional goal: to cultivate students' awareness of independent participation and the spirit of active inquiry; Cultivate students' abilities of preliminary observation, analysis, comparison, judgment and generalization, develop students' thinking and experience the fun of learning mathematics in the process of solving problems.
Teaching emphases and difficulties
1, grasp the meaning of proportion.
2. Use the meaning of proportion to judge whether two proportions can form a proportion and correctly form a proportion.
3. Can write several different ratios according to one ratio.
Question 3: What should I record in class? /Li Jun starts to attend the qualification training course for city principals from today, all-weather, every Tuesday, Wednesday and Thursday. Another good learning opportunity-learning from experts, learning from courses, learning from classmates and learning from yourself. In the afternoon, Mr. Zhao Zhixiang from the Municipal Academy of Educational Sciences taught the art of listening to lectures and evaluating lessons, which was very practical. Every semester, we will ask or advocate teachers to attend more classes, and teachers are also very active. Lectures are all over-recorded, but some teachers' recording methods are not good enough. What should I remember from the class notes? Many listeners are busy writing down teaching design, teaching links and even teaching records. This is actually meaningless. If you want to record the teaching design, the teacher can give you a draft of the teaching design. If we keep records, we can completely replace our clumsy handwriting with video cameras or tape recorders. What should I record? Teacher Zhao Zhixiang said that "wonderful things don't need to be remembered". Yes, if you think it is wonderful, your heart will naturally remember how it was designed. He believes that "what should be recorded is the on-site reflection." This idea is very reasonable. If there is anything you think is good, write down your own reflection: Can I use this design? Where should I use it? How to use it? If you find something lacking, you should record your thoughts: how can a teacher do this? If it were me, how would I design it? If you are listening to a famous teacher's class and find something wonderful, you should record your reflection: Is this a good design? Why haven't I thought about it, where is the gap between me and him? What can I do to narrow the gap? My speech is as follows: teaching process design and my thinking analysis. The general word ratio is 6: 4. Because we have to communicate and discuss with the class teacher after listening to each class, we must record the class evidence, so that it can be justified. Appreciation and praise can only be more inspiring if they are reasonable, realistic and appropriate. You must also put forward suggestions for improvement, and feel that reasonable suggestions are useful and helpful to promote the effect. I am very much in favor of Mr. Zhao's idea of singing more praises in class evaluation, but colleagues who are very familiar with him may be less polite. It is not enough for teachers to improve the level of classroom teaching just by encouraging self-confidence. Defining the direction of efforts may be more conducive to the growth of teachers. As long as the opinions are constructive, as long as the shortcomings are found accurately and reasonably, and as long as the shortcomings are pointed out sincerely and frankly, the other party should be willing to accept them. In fact, what should be recorded in the lecture record should be determined according to the purpose of the lecture. If you are studying, record more wonderful designs, wonderful performances by teachers and students, and your corresponding thinking feelings. If it is a seminar, you should remember more questions worth discussing and your thoughts at that time. If it is an introductory lecture, you should remember more areas that need improvement and your analysis, understanding and suggestions. If it is competitive, you should remember more advantages and disadvantages and your comparative analysis. If it is a research class, you should remember the performance of teachers and students, as well as your own observations and comments. This semester, our school held a competition in which all students participated-the teaching fragment evaluation competition. The evaluation object must be the open class of teachers in our school, which can make this subject interdisciplinary. Each of our disciplines has a teaching and research activity of "two courses, two research and one theme", and many teachers actively participate in the lecture evaluation activities. Cross-grade and interdisciplinary lectures are becoming more and more popular. I think, if you can hear the good of each class, you can also analyze it well; If we can feel the deficiency of each class and analyze the reasons and give suggestions, then regular class activities can promote the skill literacy of both teachers and students. The art of class evaluation introduced by teacher Zhao is very practical. Different expressions have different effects, and they are very particular about who should say it.
Question 4: Record the number of small classes and the number of small classes;
This lesson further solved the practical problem of "less than much" and further understood the significance of addition and subtraction. Let the students understand the basic quantitative relationship through their own drawing, computer demonstration and other intuitive operation means, and realize that "what is more (less) than a number" is still the sum (difference) of two numbers in essence.
According to the age characteristics of the first-grade children, teacher Zhang's teaching design in the classroom is rich and colorful. At the beginning of this class, the animation Pleasant Goat and Big Big Wolf, which students are very familiar with, was introduced into the new class. It was very natural, which greatly stimulated students' interest in learning and improved the efficiency of classroom learning. The whole class has clear thinking and smooth process. I think children basically have a good command of it, and they can also solve a problem of more (less) numbers by comparing two numbers. Although the child may not be in place, the overall situation is good. I think the highlight of this class is the introduction of line drawing. If line drawing teaching can be properly and continuously carried out in the future problem solving, I think it will be very helpful for students to solve problems. Since the implementation of the new curriculum, students' problem-solving ability is very lacking, and many traditional things have been lost in the textbooks of the new curriculum. In the setting of teaching materials, first, the problem-solving teaching is scattered and the classification is unclear; Second, the arrangement of teaching materials is difficult, and there are not many basic exercises; Third, teachers do not attach importance to the quantitative relationship in problem-solving teaching in textbooks. So today, Mr. Zhang gave a lecture on "solving problems", so he combined the pictures and characters in solving problems with the grids and line segments in animation, so that students could abstract the quantitative relationship of the questions in intuitive graphics and initially perceive the meaning expressed by the line segments. Let them realize the necessity and rationality of line drawing, experience the abstract process from "painting" to "line drawing", and let line drawing become an internal psychological demand of students. It is difficult to teach the mathematical problems of "greater than () ()" and "less than () ()". It is difficult for students to judge that "greater than () ()" is calculated by addition without analysis, and vice versa. The correct use of line segments can prevent students from making such wrong judgments, guide students to analyze pictures at a glance, and students' understanding of the meaning of the questions is also in place. I think, if we persist in this way, by the middle and high grades, students should be able to have the most basic ability to analyze problems
Question 5: Urgent! Ask for the debate materials of the debate contest! The focus of the debate is that it is more important for college students to attend classes than to take notes. We are sure, the view is that class is important ~ thank you! ! ! Who initiated this debate?
Of course, class is very important. You don't remember anything?
If so
Positive: just listen and don't remember;
Recipient: Listen and remember.
You got it? I don't understand. Remember what? So first of all, you have to understand.
Therefore, understanding is the most important thing.
If so
I understand everything.
Do you remember? Is it important to keep it in mind or to write it on paper?
Of course, it's important to remember this.
If so
I remember everything.
Then why did you write it on paper? In order to prevent forgetting.
Can you guarantee that your book will not be lost?
Taking notes always wants to forget; Instead of taking notes, you forced yourself not to forget. So class is the most important thing.
Question 6: What is the proportion of teaching and research activities in the first grade of primary mathematics? Teaching material analysis in the first grade of primary school mathematics and teaching objectives (1) Numbers and algebra 1, Unit 1 "Numbers in Life". On the basis of children's counting experience, combined with the specific situation, we can understand the meaning of numbers within 10, recognize, read and write numbers from 0 to 10, use them to represent the number of objects or the order of things, initially understand the significance of cardinality and ordinal number, feel the close relationship between "number" and life, experience the fun of learning mathematics, and initially form good study habits. 2. Unit 2 Comparison. By comparing the specific figures of mathematical activities, we can understand the meanings of symbols such as ">,". Through the process of abstracting the addition and subtraction formula within 10 from practical problems, explaining and applying it, I realized the significance of addition and subtraction, and initially felt the close relationship between addition and subtraction and life; Can correctly calculate the addition and subtraction within 10, and master the decomposition and synthesis skills of numbers within 10; By sorting out the addition and subtraction formulas and exploring the regular activities between them, we can cultivate and develop the sense of numbers. 4. Unit 7 Addition and subtraction (2). After experiencing the concrete operation and induction of the number representing 1 1-20, I initially realized that I could count, read and write in 20 days by using the decimal notation principle, master their order, compare their sizes, and think simply and orderly in combination with problem-solving activities. By communicating with my peers about my algorithm, I can understand the diversity of algorithms, learn to carry and abdicate within 20, gradually master addition and subtraction within 20, and solve simple problems, feel the close connection between addition and subtraction and daily life, and feel the rationality of mathematical thinking process. 5. Unit 8 (2) Space and Graphics 1, Unit 5 "Position and Order". Combined with vivid and interesting situations or activities, we can understand the position and order of front, back, up, down, left and right, and describe the relative position of objects by reusing front, back, up, down, left and right, thus establishing a preliminary spatial concept. 2. Unit 6 Understanding Objects. Through the observation, operation and classification of objects and models, the intuitive experience of simple geometry can be obtained, which can intuitively identify whether its shape is rectangular, square, cylindrical or spherical, and can intuitively identify three-dimensional graphics such as rectangular, square, cylindrical or spherical. (3) Statistics and Probability 1, unit 4 classification. Combined with the classification activities that must be carried out in daily life, I feel the necessity of classification. I can compare, arrange and classify objects according to a given standard or choose a certain standard, and experience the consistency of activity results under the same standard and the diversity under different standards in these activities. 2. Unit 9 Statistics. Carry out statistical activities according to simple and realistic problems, experience the whole process of data collection, collation, description and analysis, and feel the necessity of statistics; Combined with examples, understanding statistical tables and image statistical charts will fill in corresponding icons; Be able to ask and answer simple questions according to the data in statistical charts, and communicate with peers. (4) Practical Activities The texts and exercises in this textbook provide many practical activities or small surveys suitable for first-grade primary school students. For example: 1, let's find it. "I want to find three taller than me", "I want to find two my age" and "I want to find" 2. Tell me about where 0 is used in life. 3. Tell me about the addition problem you found in your life? Tidy up your room and tell your partner how you do it. 5. Go to the library or bookstore to see how books are classified and talk to peers. 6. Investigate when the sun just rises. The sun has just set. About what time? Investigate the number of boys and girls in each group in your class and try to ask some math questions. 7. Investigate the attendance rate of students in your class 10. (1) Do you go to school by bus or on foot? (2) Go together or alone? Through the above observation, investigation and other practical activities, students gain good emotional experience and some preliminary mathematical practical experience in the process of cooperation and communication, and can use the knowledge and methods they have learned to solve simple problems and feel the role of mathematics in daily life. Teaching plan (1) Mathematics teaching should conform to students' cognitive level. Mathematics teaching must follow students' psychology of learning mathematics ...
Question 7: Who knows when Star Volunteer 3 will be released? It was originally scheduled to be released in the middle of June 5438 +2005 10, but the possibility of delaying the release of the game until the end of the year is not ruled out.
They are ghosts all over the world, and the news is absolutely reliable. )
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