Subject: Year Month Day
Class-based new teaching grade, third grade teaching
Learning objective: 1. Know the time unit year, month and day, understand the relationship between them, know the knowledge of big and small months, and realize that there is mathematics everywhere in life.
2. Through the independent exploration of the calendar card, it is found that there are several big months and several small months in a year, and the particularity of February is found in the cooperation and exchange. Learn to judge a normal year and a leap year.
Learning focus: know the time unit year, month and day, and understand the relationship between them.
Difficulties in learning: the memory of the big moon and the small moon, and the judgment method of normal year and leap year.
Preparation for preview: Each group prepares a different calendar.
learning process
Link learning plan guide
Situation introduction
1, I know today is the month, I passed.
I know.
Do you know when the following festivals are?
National Day, New Year's Day, Army Day and Labor Day
Children's Day, Women's Day and Teacher's Day Arbor Day
Beijing Olympic Games was held in 2008 10 15.
4. Dongdong has only three birthdays when he is 12 years old. Do you know why?
Introduce life situations and stimulate interest in learning.
Show it on the blackboard and tell the answer.
Theme of blackboard writing
Explore the calendar and explore the relationship between year, month and day.
1. The year observed by our group is.
2. There are several months in this year, some days, and such months have several months respectively; Some months are days, and such months have months respectively.
The month of the year is very special, it only has a few days.
Through calculation, I know how many days there will be in a year.
Guided learning method:
1, autonomous learning, teachers in groups to understand the learning situation.
2. Cooperative exploration,
First, learn the whole and compare the right and wrong in self-study; Then guide each group to focus on research and report the corresponding problems.
Show the report of the communication group and exchange discussions:
1. How many days are there in a month? What are the days in different months? Is there a way to quickly remember the days of each month?
2. How many days are there in a year? How is it calculated?
Dial and summarize:
1, formula and first memory method.
2. Judge the normal year and leap year. (The Story of February)
3. The relationship between year, month and day. (Use blackboard writing to guide induction)
Basic problems of consolidating application (1)
1, compare it and see who remembers it.
There are () days in a year.
② The months of 31day are () respectively.
③ The month with 30 days is ().
2. Will you complete the following exercises according to this year's calendar?
There are () days in January, February and March.
(2) Children's Day is a week ().
③ April has () weeks and () days.
④2065 438+00 1 month 1 day is a week ().
3. Judgment (remember "right" and "wrong"). )
① April, June, September 165438+ October is the abortion period, with 30 days per month. ( )
② Every odd month is a big month. ( )
There are only 28 days in February. ( )
(4) June 1 is Children's Day, and the day before is May 30th. ( )
(5) Xiaoming stayed with his grandmother for 62 days, just two months. These two months are July and August. ( )
(2), expand the problem
Dongdong has only three birthdays when he is 12 years old. Do you know why?
The next group of tutors, under the condition of on-site approval, help the underachievers master the understanding knowledge.
The basic questions are checked by the team leader.
Feedback, guide students to tell the method of discrimination and the reasons for right and wrong.
Go back to the exercises in the introductory part and guide the solution.
Guide students to sum up their learning gains and evaluate incentive measures.
Learning harvest
I'll send you the location and direction tomorrow!