Teachers should cultivate students' awareness and ability to look at things around them from a mathematical point of view and analyze various phenomena in daily life from a mathematical point of view. The following is a comparative teaching plan for the second grade mathematics in primary school, which I compiled, hoping to provide you with reference and reference.
Comparison teaching plan model of mathematics in the second grade of primary school.
Teaching objectives:
1. Let students learn to describe things around them with numbers and communicate with people.
2. Cultivate the consciousness and ability to look at things around you from a mathematical perspective and analyze various phenomena in daily life from a mathematical perspective.
3. Experiencing the quantitative thought initially and promoting the development of number sense.
Key points and difficulties:
Size comparison of numbers with the same number of digits.
Teaching AIDS:
Courseware, counter, ruler.
Teaching process:
First, check the import.
relative dimension
98 1( ) 1000 6980( )789 7083( )7208 1378( )234 1 2980( )3408 3920 ( )3980
Second, give it a try.
1, the courseware shows 28 pages of situation map, observe it carefully and give it a try. The teacher patrolled and found problems.
2. The booth shows the tasks completed by the students themselves.
3. Student report: Mark the reasons for the price of three kinds of bicycles on the digital line and tell which one is the most expensive.
Third, teacher evaluation,
Teachers should affirm students' different opinions as long as they are reasonable.
(Design intention: Improve students' sufficient and independent thinking space, enhance students' awareness of inquiry and self-confidence in learning, and let students experience the fun of success. )
Fourth, group discussion and study.
Learn to mark the approximate location of 3200 on the internet, discuss and study in groups, and then report.
Verb (abbreviation of verb) courseware display
Practice, complete exercise questions 3 and 4 on page 29, let the students fill them in, and the teacher will inspect them.
Sixth, summarize and improve.
Let the students talk about the harvest, focusing on how to compare the numbers.
Blackboard design:
give it a try
Compared with the size of the number within 10,000, the number with more digits is larger, and the number of digits is the same, starting from the high position.
The second model of mathematics comparison teaching plan in the second grade of primary school
Teaching objectives:
1, through comparison activities, master the method of comparing the sizes of numbers within 10,000, and be able to express the sizes of numbers within 10,000 with symbols.
2, through the estimation, combined with real materials, feel the significance of large numbers, and realize the practical role of estimation in real life.
Teaching preparation:
Teacher: Digital card,
Student: Digital cards within 100.
Teaching process:
First, review.
1, use digital cards within 100 at the same table, and each person will draw one at a time. Whoever says the big number first wins.
2. Exchange experience in judging large numbers.
Second, new funding.
1, teach "comparison"
(1) Let me see 1084 and 982. Tell me who is older and who is younger.
(2) Students say that three digits are less than four digits, so1084 > 982
(3) The teacher shows some other figures and the students compare them.
(4) summarize the law:
Digital comparison:
(1) The more digits, the greater the number.
(2) Compared with bits, the number of bits is larger (the number of bits is the same)
(3) If the number of digits is the same as the number of digits, let's compare the next digit.
2. practice.
(1) Students complete P36 and fill in O.
(2) Tell me why you filled in this way.
Step 3 give it a try
(1) Teachers guide students to read the questions and understand their meanings.
(2) Tell me how to compare sizes quickly.
(3) Teacher's summary:
Divide these numbers by digits first, and then compare them with the same number.
99 & lt345 & lt387 & lt809 & lt 1725<4300
Step 4 think about it
(1) Guide reading and understand the meaning of the question.
(2) The smallest four digits are 1000 and the smallest four digits are 9999.
5, math games:
(1) Tell your deskmate what number you wrote. ...
(2) Ask a student to give a demonstration on stage, and then the whole class will do it in groups.
6. practice.
Complete exercises 1 and 2.
Three. abstract
What did the students learn in this class?
1, learned to compare the sizes of numbers within 10,000.
2. How to compare four digits with three digits?
3. How to compare numbers with the same number?
4. How to compare many numbers together?
Fourth, homework
1, the smallest four digits are (), and the four digits of are ().
2. The smallest three digits are (), and the three digits of are ().
3.287,7650,80,285, 165 1 79 Among these figures, two digits have (), three digits have () and four digits have ().
4、427 O 527 1620 O 620 888 O 988
29 O 1 10 99 O 999 6080 O 3090
Comparison of teaching plans for the second grade of primary school mathematics.
Teaching objectives:
1, through comparison activities, master the method of comparing the sizes of numbers within 10,000, and use symbols to represent the sizes of numbers within 10,000.
2. Cultivate students' inductive ability and oral expression ability.
3, through various forms of activities, combined with real materials, feel the meaning of large numbers.
Teaching focus:
Comparison method of number size within 10 thousand
Teaching difficulties:
Let the students sum up and master and use the method of comparing sizes skillfully.
Teaching process:
First, create situations and introduce new lessons.
Our motherland has beautiful scenery and rich products. Famous mountains and great rivers fascinate the world. Today, the teacher will lead us to several beautiful scenic spots and learn some math knowledge while enjoying the beautiful scenery.
Second, (show the scene map).
1, observe the situation map and look for mathematical information.
2. Put forward valuable mathematical problems according to the situation diagram.
(1) Who? Who is the lowest?
(2) Who is taller than Huangshan and who is taller than Mount Tai?
(3) Compared with Huashan Mountain, which mountain is higher?
Third, autonomous learning.
Choose one or two questions according to the questions raised and discuss them in groups.
Fourth, report the learning situation.
Blackboard writing: the direct proportion of different numbers
Same number of digits, more than the first digit.
The first place is the same, in turn than.
Can you fill in the list from small to large?
()& lt()& lt()& lt( )
Sixth, improve training.
We all compare two numbers. Do you dare to compare six numbers at a time, from small to large?
1, (courseware demonstration topic) 387,809,1752,345,99 and 4300.
2. Think independently and think about what symbols to use to connect and sort.
3. Group discussion: So many people, how to arrange them quickly from small to large?
4. Report the discussion conclusion.
Students can divide these figures into three categories: two digits, three digits and four digits. Instruct students to try this method together.
Seven, consolidate the exercise
Finish the after-class exercise 1 Harvest corn. Step 2 compare sizes
Eight, class summary
Students talk about the gains of this class, and teachers and students * * * summarize the methods of size comparison within ten thousand.
Blackboard design:
contrast
The direct proportion of different numbers
Same number of digits, more than the first digit.
The first place is the same, in turn than.
Can't draw a picture of a mathematical manuscript? I don't know what to write. It doesn't matter. The following are the pictures and information about the s