As an unknown and selfless educator, we often have to prepare speeches to help students understand and master systematic knowledge. So how should the course draft be written properly? The following is the draft of primary school mathematics lecture I collected-year, month and day, for reference only, I hope it will help you.

Let's talk about textbooks first.

1, teaching content.

Nine-year compulsory education primary school mathematics book 6 chapter 4 "year, month and day" lesson 1.

2. teaching material analysis

"Year, month and day" is a larger time unit for primary school contact. Before this unit, students have learned smaller time units "hours, minutes and seconds". Students will use it in real life in the future, and there is no need to expand their time in primary school. So this course plays a very important role. Time unit is an abstract unit of measurement. Students in this lesson will know the time year, month and day, understand the relationship between them, and know the knowledge of big month, small month, special month, average year and leap year and their judgment methods.

3. Teaching objectives

(1) Knowledge objective: To master the time units of year, month and day and understand the relationship between them. Understand the knowledge of normal year and leap year, and master the method of judging the number of days in each month, normal year and leap year.

② Ability goal: Experience the process of hands-on operation, information search and knowledge exploration, and improve the ability of observation, judgment and inquiry.

③ Emotional Attitude Goal: Cultivate patriotic feelings and cultivate the habit of cherishing time.

4. Emphasis and difficulty in teaching

Focus: time unit year, month, day and their relationship.

Difficulty: the judgment method of flat year and leap year.

Highlight the key points: use the memory method of big moon song and left fist to summarize abstract knowledge into interesting jingles and fists. Simple and easy for students to accept.

Break through the difficulties: the judgment method of normal year and leap year is the difficulty of this course. Students must be allowed to observe, guess and summarize independently in order to internalize their knowledge smoothly.

5. Analysis of learning situation

In the lower grades, primary school students can only understand and master those time units that are closest to their real life, such as time and grade. With the growth of age, students gradually come into contact with time units far away from life, such as years and months. Students have accumulated more and more perceptual knowledge about larger time units in their daily activities. Children's Day, annual birthdays, New Year's Day, National Day, Arbor Day, etc. Let children establish a preliminary concept of time. This knowledge is the basis for third-grade students to learn this lesson. There are many relationships between "year, month and day". Students are prone to confusion after mastering it.

Second, oral teaching methods

(A) the guiding ideology of teaching

1, "open observation research" guides children to learn independently.

Under the concept of new curriculum standards, teachers should play a leading role and students are the main body of learning. Only when students think about mathematics problems in their lives can they achieve good educational results. In terms of teaching methods, I adopt the way of "open observation and research" to let students find educational materials in real life. By observing, counting, thinking and summarizing various beautifully made calendars, we can communicate with other students in school life and cultivate the ability to find and solve problems, as well as the ability to communicate and express mathematics. The new curriculum standard holds that "students' mathematics learning content should be realistic, meaningful and challenging". This chapter starts with a calendar with strong practical significance, which has a strong flavor of life and is more likely to arouse students' interest in learning.

2,' pre-class survey results' to establish' existing knowledge and experience'

"Mathematics teaching activities must be based on students' cognitive development level and existing knowledge and experience. "(New curriculum standard) The knowledge of normal year, leap year, big month, small month, special month, the judgment method of big and small months, the judgment method of normal year and leap year, etc., make the knowledge density of this lesson relatively large. This lesson is slightly lacking in knowledge coherence. In the huge knowledge system, it is not closely related to the unit "time". Therefore, in dealing with "existing knowledge and experience", I use the method of observation and research to awaken students' previous knowledge and experience. At the same time, students are guided to observe and think through questions to form new "existing knowledge and experience".

3. Animation, games and competitions can adjust the classroom learning atmosphere in various forms.

The attention of students in Grade Three is easily distracted, so it is very important to adjust the classroom atmosphere through various forms. I use multimedia animation, games and competitions flexibly in class to attract students' attention, strengthen the application of knowledge rules and deepen my impression.

Teaching preparation

1. One week before class, arrange students to collect calendars of family members, relatives and friends, find out the observation data for four consecutive years, and complete the paper "Investigation Results before class".

2, teaching AIDS: calendar cards, PPT slides.

Third, theoretical study.

Before class, students search for information, observe and summarize, compare and think, and summarize the mathematics of life, so as to improve their learning enthusiasm and initiative. In the classroom, children use children's songs and games as a bridge to internalize objective laws into a part of their own knowledge network. After class, as the carrier of knowledge, reciting the big moon song and left fist will help students solve many problems from life and study.

Fourth, talk about the teaching process

One week before class, arrange the calendar of students' pre-class survey for four consecutive years and complete the "pre-class survey results".

The "pre-class survey results" in students' hands are as follows

Year and day

65438+1October 3 1

28 /29 February

March 3 1

April 30(th)

May 3 1

June 30(th)

July 3 1 day

August 3 1

September thirtieth.

65438+1October 3 1

165438+1October 30

65438+ February 3 1

Year 365/366

Answer the questions according to the above information.

1, how many months are there in a year?

2. How many days are there in a month?

3. In which months are there 3 1 day? Which months have 30 days?

4. How many days are there in February? How many days are there in a year? Classroom teaching link

(a) report the results of the pre-class survey

Students, last week, the teacher asked the students to collect calendars and observe the days on the calendars for four consecutive years. What's the student's result? What did you find? Let's ask a classmate to report his findings.

Student reports, such as:

1, there are 12 months in a year.

2. Some months have 3 1 day, some have 30 days, and there are 29 days and 28 days.

The months of 3.3 1 day are January, Wednesday, Friday, July, August, October and December.

The months with 30 days are April, June, September and November.

A month with 28 or 29 days is February.

February has 28 or 29 days.

Some years have 365 days, while others have 366 days.

Learning new knowledge

1, year and month

The month with 3 1 day is called "big month" and the month with 30 days is called "small month". For the most special February in which the number of days will change, we call it "special month". (Write down the big month, small month and special month on the blackboard)

February is so different, there must be a little secret. Students want to know? We asked the little doctor of mathematics to explain it to us clearly.

The PPT slide shows the animation of the earth revolving around the sun, and the voice of the little doctor of mathematics is heard: "The earth always revolves around the sun. The time for the earth to go around the sun is one year, and the actual time is 5: 48: 46 on 365. For convenience, people set a year as 365 days, which is called the average year. This will be one day closer to the standard time every four years. People added an extra day in February this year. It is 366 days, and this year is called leap year. "

2, month memory method.

What can I do to remember the big moon and the small moon?

(Students think for two minutes and ask questions)

Students can introduce their own memory methods, such as single and even number memory, big moon song memory, left fist memory and so on. As long as it conforms to the law, it is certain.

① Single and double memory method: before July, the month is big, and after August, the month is big.

② Moon Song: One, three, five, seven, eight, ten, wax, not bad for thirty-one days.

③ Memory method of left fist: from the fist edge, the protruding part is the big moon, 365,438+0 days per month. The sinking place is Xiaoyue, 30 days a month. Except February.

3. Read and compete.

The whole class uses the left fist memory method, do it together and read it together.

Which group of students has the highest skills and the loudest voice in the competition?

③ The whole class read "Song of the Big Moon" to test which group has the deepest memory.

④ Mathematical activities. Activity requirements: the teacher said the number of months, when the class is older, the boys stand up, and when the class is younger, the girls stand up. The teacher said March, November, July, September, June, August, January, December and February in turn.

4. Judge the normal year and leap year.

We have learned how to distinguish the big moon from the small moon. So, how to distinguish between a normal year and a leap year?

Let's think it over. A leap year is a year with 29 days in February. So we only need to look at the number of days in February to determine whether that year is a flat year or a leap year. Please turn to page 49 and circle leap years. What can you find by observing the year number of leap year? The students' possible answers are as follows:

There is a leap year every four years.

(2) is an even number.

③ All are integer multiples of 4.

Summarize the law: divide the year by 4, and the remainder is the average year; No remainder is leap year.

Let's use the law of discovery to guess the next leap year in 20xx years. (xxxx) Divide by 4 to test it. Find out the calendar of xxxx year again and have a look.

5. Practice feedback and ask questions: Let students judge whether 1864, 1963, xxxx, 1900 is a normal year or a leap year.

6. Supplementary provisions for judging leap years in normal years.

1900÷4=475 has no remainder, but it is a normal year. Why? Please listen to the explanation of the little doctor of mathematics.

The PPT slide shows the animation of the earth revolving around the sun, and the voice of the little doctor of mathematics is heard: there is a leap year every four years, and the time difference is not exactly 24 hours, but 23 hours 15 minutes and 4 seconds. Therefore, the leap of four years has increased by 44 minutes and 56 seconds. It seems that the error is very small, and it will increase after a long time. Add 3 days every 400 years, 2: 53: 20, so add 3 days every 400 years. In order to facilitate the calculation, the regulation of "leap every four years, not leap in a hundred years, leap in a hundred years" was made, so scientists made a supplementary regulation: "A year is a whole hundred years, and it must be a multiple of 400 to be considered as a leap year."

(c) Practical feedback to consolidate new knowledge:

Right or wrong

May is an important month. ()

November is an important month. ()

③ ③ The year of ③③20xx is a normal year. ()

(4) in February of ④xxxx, there are 29 days. ()

⑤ January in ⑤20xx has 3 1 day. ()

(D) class summary, talk about the harvest.

What did we learn in this class?

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