Comments and suggestions in math class

Listening to lectures is an activity of carefully observing the classroom, which plays an extremely important role in understanding and understanding the classroom. The topic of the lecture can be students or teachers. The following are my comments and suggestions on the math class for your reference only. Welcome to reading.

Comments and suggestions in math class

Classroom evaluation is an activity to evaluate whether a teacher's classroom teaching has established a modern teaching concept and the gains and losses, success or failure of classroom teaching. By attending lectures and evaluating classes, we can improve teachers' education and teaching level, improve teachers' education and teaching quality, improve teachers' teaching practice and deepen classroom teaching reform.

Of course, in order to truly evaluate a good class, as a teacher, we must strengthen our study, learn new teaching concepts, study pedagogy, psychology, aesthetics, oratory, oral English, learn the class model, master the characteristics of the subject, be familiar with various class types, and learn to weigh the language of review in practice. Only in this way can you add icing on the cake for the excellent, give timely help to the poor and make the comments unique.

As a teacher, it is common to attend classes and evaluate classes. The author was fortunate enough to listen to many classes. The following is a comment on Mr. Cheng Ran's English class in Yangpu District Senior Middle School:

I think this course is very successful, which better embodies the three-dimensional goal of the course. Let me comment on the following four aspects:

The first point: teaching purpose. The teaching purpose of this course is clear and the teaching effect is good.

1. Students express tourist attractions and places of interest in English in class to cultivate their English thinking ability;

2. To achieve the teaching objectives of text reading, such as browsing and skimming;

Stimulated students' love for the great rivers and mountains of the motherland.

The second point: teaching process and methods.

1. The teaching design of the whole class meets the needs of senior high school students' reality and teaching content, and all aspects of teaching transition naturally, from free dialogue at the beginning to text introduction, from pictures to quiz test, to vocabulary interpretation, reading aloud and dialogue discussion, which completely conforms to students' cognitive level;

2. The design is hierarchical and deep, especially the feedback forms are diverse. It can be seen that the teacher spent a lot of thoughts, such as quizzes, vocabulary explanations, questions, fill in the blanks, dialogues, predictions and so on. And they are all for the same teaching goal.

3. The teaching method is student-oriented, such as paying attention to students' language test (paying attention to some students' spelling ability in vocabulary learning), and dividing the discussion into Shanghai group, Lijiang group, Hong Kong group and Great Wall group, fully respecting students' wishes and personality differences.

The third point: students' learning situation.

Because the teacher's teaching design is innovative, students always maintain a good learning attitude. While acquiring knowledge, my thinking ability has also been exercised. According to my rough statistics, in this class, students' independent activities account for about 2/3, with high interest in learning, warm classroom atmosphere and wide participation, which reflects the spirit of students' willingness to explore and actively participate. If a student has prepared a picture and is ready to supplement it, it is really unfinished.

The fourth point: the quality of teachers.

1. The teacher is fluent in spoken English, with standard pronunciation and solid basic language skills, which shows that the teacher has thoroughly understood the textbooks and prepared lessons adequately;

2. Teachers teach naturally, sometimes gesturing, with affinity, clear instructions in place, good at inspiring students and teaching students in accordance with their aptitude;

3. Teaching highlights: Teachers' teaching wit, especially their ability to grasp details, reflects the goal of the second phase of curriculum reform everywhere, which is student-oriented and "zero" distance from students. If a student can't answer at first, the teacher won't give up. After repeated inspiration and induction, the student answers the word landscape. Another example is a student's English proverb "You are not a hero until you reach the Great Wall", which is very good, but many students don't care. The teacher deliberately pretended not to hear clearly and asked the students to repeat it. Another student answered the word rainbow, and the teacher immediately praised "rich imagination". All these give students great encouragement and confidence, which is the most successful place for teachers, very. Therefore, the teacher's idea is very important, because it determines the teaching behavior.

Some discussions:

1. Error correction is always a difficult problem. Whether or not to change, when to change, I think the teacher should seize the opportunity. If several students say, "He thinks, though ... but ...", the teacher should correct it. Of course, correcting mistakes must be clever and try not to hurt students' enthusiasm, but for big mistakes and repeated mistakes, it is still necessary to correct them. In this class, the teacher can correct it quietly through repetition;

2. The discussion in each group is very good. As a teacher, we should evaluate, praise the good ones, put forward the direction of efforts and have specific opinions on the advantages and disadvantages. For example, the Shanghai group has many bright spots, and teachers must promote it in terms of group cooperation and group leader organization, so that the evaluation can be implemented;

3. Can the prediction in the picture introduction in the last link be replaced by students taking notes for students to read aloud, so that you can kill two birds with one stone? I think that in classroom teaching, if both time and opportunity can be given to teachers and students, students should be the mainstay;

4. Some key words and sentence patterns should be written on the blackboard, which is more convenient for students to remember. Otherwise, all ppt will give people a superficial feeling and affect the learning effect.

Comments on Mathematics Classroom in Senior High School

I. Comments on quadrilateral:

1, using video to attract students' attention, the teacher randomly appears various graphics on the screen according to students' answers, which deepens students' understanding of quadrilateral, thus leading to the theme of the new lesson (quadrilateral).

2. Let students distinguish and correctly understand quadrangles through observation and intuitive perception, and praise students in the form of small gifts, thus mobilizing their enthusiasm.

3. Cultivate mutual cooperation among students in the form of group discussion; The teaching design of teachers and students' inquiry into problems is from simple to deep, which makes students easy to accept knowledge.

4. The teacher is persuasive, let the students use their brains together, and the students express their opinions to improve the classroom atmosphere.

In the form of games, let students do it themselves, improve their enthusiasm, give play to their creative thinking, sum up knowledge points, deepen their understanding of knowledge, let students feel the close connection between mathematics and life in activities, and cultivate their concern for their hometown.

General comment: Teachers should use multimedia teaching reasonably in this class, so that students can fully grasp the knowledge points.

Through all kinds of games, let students feel that quadrangles are everywhere in life, know the characteristics of quadrangles, further master the characteristics of rectangles and squares, cultivate students' ability of observation, comparison and abstract generalization, and actively participate in mathematics learning activities. The blackboard writing is concise and clear, highlighting the characteristics of quadrangles.

Second, the "perimeter" evaluation record

1, interest runs through. "Interest is the best teacher", and learning interest directly affects the quality of learning. From the steps of letting students observe the picture frames with gold edges, instructing them to point out how pictures such as the moon and leaves are inlaid with gold edges, to the steps of exploring new knowledge, guiding group learning, autonomous learning, reporting research methods, naming research methods after students, etc., teachers always give people a cordial feeling, and students always maintain a strong interest in learning.

2. In terms of teaching methods, teachers pay attention to creating inquiry learning scenarios for students, and students pay attention to independent inquiry and hands-on practice, combining self-induction with cooperative communication, so that students can perceive the meaning of perimeter in practice, and explore the calculation method of rectangular perimeter through training such as finding, touching and speaking. In the process of concept formation, students' thinking has gone through the process of hands-on, observation and thinking, induction and generalization, and followed students' cognitive laws. Teachers' timely guidance has always kept students' thinking in a positive state and truly become the masters of learning.

3. Teachers should pay attention to the guidance of learning methods. In the process of exploring knowledge, whether working in groups or independently, we have gone through the steps of measuring, filling in reports, summarizing and reporting. Teachers should strengthen the guidance of each step, so that students can clearly understand the purpose and methods of activities and implement mathematical inquiry activities. In addition, it is helpful to guide students to classify graphics according to appropriate methods, and to summarize the scattered mathematical knowledge obtained by students into a complete knowledge system, which is helpful to improve students' logical thinking ability.

It is suggested that teachers further standardize students' activity time.

Third, "the classification of horns"

1, review leads directly to new lessons. Let the students talk about the characteristics of acute angle, right angle and obtuse angle they have learned, so as to lay a good foundation for learning new knowledge and promote the transfer of knowledge.

2. The teaching links of exploring new knowledge are interlocking, and the teaching activities are solid and effective. By guiding students to practice, using activities such as measuring a quantity, stacking, spelling and practicing. , get the degree of straight angle and fillet, and summarize the relationship between straight angle, fillet and right angle in specific operation. While cultivating students' computing ability and thinking ability, we should pay attention to cultivating students' ability to summarize and develop students' various thinking abilities.

3. The learning tools are simple, practical and easy to operate.

4. Teaching is closely related to teaching materials, with intensive teaching and more practice. The exercises are from shallow to deep, and the students are well trained, and the teaching objectives are well accomplished.

Four, "the area of combined graphics"

1, the game composed of guessing games is introduced into the new class, which greatly stimulates students' interest in learning, cultivates students' imagination, and enables students to initially form an understanding of the meaning of "combined graphics".

2. Use independent inquiry, cooperation and exchange, comparative reflection and other methods. Let students experience the inquiry process of calculating the combined graphic area. Through the guidance of teachers, students' ability to analyze and solve practical problems is cultivated, and students' learning process is active.

3. Strengthen the teaching of students' learning methods in the classroom. When solving problems, guide students to estimate first, then think and calculate independently, and finally exchange problem-solving methods. The students came up with various ways to solve a problem. Teachers do not directly tell students which method is good, but encourage students to find the simplest method to find the combined graphic area through observation and comparison. Cultivate students' ability to think from multiple angles.

4. In teaching, we should strengthen the connection between mathematics and real life, teachers should let go, give students ample opportunities to explore and cultivate their problem-solving ability.

A preliminary understanding of multiplication by verbs (abbreviation of verb)

1. The introduction of stories stimulates students' interest in learning, and also raises questions for students: Why did the slow-witted little turtle work out the answer of 2+2+2+2 = () first? Stimulate students' strong interest in learning and pave the way for new knowledge learning.

2. In the multiplication of teaching knowledge, we should first guide students to observe the theme map of children's paradise, so that students can find the total number of games that boys and girls in the class like respectively, and let students experience the fun of mathematics from life. Then let students classify formulas according to the characteristics of addend, and guide students to explore the meaning of multiplication through comparison, observation, inquiry and communication. Students think step by step and write on the blackboard throughout, so that they can experience the process of knowledge development and evolution.

3. Pay attention to cultivate students' good study habits. It is very important to be good at guiding students to read books, to observe the theme map in the lower grades and to find out the conditions in the map. Xu teacher is also good at cultivating students' good writing habits. For example, when doing exercises, let students draw a horizontal line under the picture first, and then write the multiplication formula on the horizontal line. The formation of good study habits will definitely play a positive role in students' future study and life. In addition, from the two formulas of 2+2+2 = 8 and 4+4=8, it is concluded that different penetration observation angles will lead to different results.

4. Strengthening mathematics comes from life thoughts. Whether to review old knowledge, introduce new knowledge, explore new knowledge and consolidate exercises (for example, the total number of games that boys and girls like in the class, the number of people playing games in the picture, observing the packaging of drugs, etc.). ) has always reflected the close connection between mathematics and real life.

It is suggested that the blackboard writing should be focused, and it is not convenient to observe many words and small words.

Sixth, "multiplication formula of 5"

1, the introduction of teaching nursery rhymes is novel, vivid and intuitive. It not only stimulates students' interest in learning, but also paves the way for learning new knowledge.

2. When writing formulas, compiling formulas and memorizing formulas, let students say the multiplication formula from familiar fingers. The teacher will give them a decision first, so as to guide students to understand the meaning of each number in the formula, and then guide them to set up learning tools, fill in self-study experience cards and compile the formula. The teacher's guidance is from helping to letting go, which conforms to the cognitive law of primary school students and can greatly play the role of students' experience, inquiry and thinking. The whole classroom is lively and lively. Teachers become guides, collaborators and participants in students' learning.

Seven, "the basic nature of the score"

1, teaching lead-in links with real life, creates problem situations for students, and stimulates students' curiosity.

2. In teaching, we not only pay attention to the training of basic knowledge and skills, but also pay more attention to process methods and emotional experience. In teaching, methods such as folding, scribbling and comparison are used to let students experience the inquiry process of the basic nature of scores, so that conclusions and processes can be organically combined and knowledge and ability can develop harmoniously.