Composition of open class 6 of large class mathematics teaching plan 1 1. Activity objectives
1, children feel the decomposition of 6 through independent exploration and hands-on operation, and master the five points of 6.
2. On the basis of the decomposition and composition of perceived numbers, master the laws of number increase and decrease and mutual exchange.
3. Develop children's ability to observe, analyze and record, and cultivate children's interest in mathematics.
Second, the focus of the activity
Perceive the relationship between the whole and the part, and learn and record the five points of 6.
Third, the difficulty of the activity
Summarize the law of decomposition and synthesis of numbers within 6.
Fourth, activity preparation
PPT courseware, learning tool operation data (printing), digital card (printing).
Supporting courseware: "Decomposition and Synthesis of 6" PPT courseware, large class mathematics open class courseware.
Verb (abbreviation of verb) activity process
Review decomposition and combination 5,
Butt collision
Teacher: I said five,
Child: I'm interested in five,
Teacher: Can 5 be divided by 1 and what?
Child: 5 can be divided into 1 and 4.
......
Teacher: 5 can be divided by 4. What can it be?
Child: 5 can be divided into 4 and 1.
(a), the beginning part
(2) Basic part
1, please help the little panda divide the house.
(1) Children observe the red pandas and divide the six red pandas into two rooms. Ask the children to talk about their division results, and the teacher will record the results of each division.
2. The teacher summed up the children's points and summed up the five points of "6".
3. Observe children's disorderly division and guide learning to decompose "6" in an orderly way.
(1) The teacher demonstrated six pandas in separate rooms, and counted the number of small animals in the two rooms with the children, and recorded the results. "6" can be divided into 1 and 5,2 and 4,3 and 3,4 and 2,5 and 1.
(2) Children observe the decomposition formula of "6", initially grasp the orderly decomposition composition of "6", and understand the law of number increase, decrease and exchange.
(3) Let the children read the decomposition formula on the screen: for example, 6 can be divided by 2 and 4, 2 and 4 make up 6, and 2 plus 4 equals 6.
(3) Consolidate exercises (operating learning tools)
Find the key to unlock the lock (unlocking: a key unlocks a lock. Please look at the key and the number on the lock carefully. If the two numbers add up to 6, connect them with a line).
(4) Game activities
1, "Find a friend".
Rules of the game: Please take the cards in front. Children want to find the children in the seat to be "good friends" and ask if the sum of the two numbers is 6.
The train has left.
Rules of the game: Every child has a digital card, and the children whose numbers add up to 6 get on the bus hand in hand and walk out of the activity room while singing the song "The train is leaving".
The goal of composition activity in large class math teaching plan 2 and open class 6;
1, explore the composition of 6, and know that 6 is divided into two parts in several different ways.
2, consolidate the understanding of the split number, you can use the split number to record.
3, willing to explore, and can record and tell while operating.
4, can operate in sequence, and initially perceive the complementary relationship of numbers.
5. Stimulate children's interest in learning.
Activity preparation:
1. Teaching aid: (1) Six small fish, recording paper and a house map.
(2) Several divided examination cards and number cards.
2. Learning tools: (1) There are several small laundry baskets, six operation materials, recording paper and a pen in each hand.
(2) "children's books" on page 38.
Activity flow:
First, review the lead-in to stimulate children's interest.
1, Teacher: Let's review the split formula to see which train is the fastest. (Show the split card and review by train)
2. Teacher: Now let's play a "touch ball game". Let's look at the numbers posted on the blackboard by the teacher and play some ball games. (Play touch ball in groups)
Second, the composition of autonomous learning 6.
1, Teacher: There is a laundry list under each child's chair. The contents in each laundry list are different, but the quantity is the same, all six. Now ask the children to help you divide the laundry list into two families, see how many ways there are, and record it at the same time. (children's operation)
2. Teacher: Now, let the children tell us how many points you have and how. Please tell the two children about division.
Three. The composition of inquiry learning 6
3. Teacher: There are a group of guests in our classroom today. Who are our guests? (showing pictures of fish) How many guests are there? (6 people) Please take a closer look. What's the difference between these fish? (The colors are different, some fish are blowing bubbles, and some fish are not blowing bubbles. Now, please help the children to divide these fish. (Show the house map) Divide the fish into two families and tell me what you divide them according to. (Let a child operate) After the child operates, the teacher records the main points. Besides the size of the fish, what else can be used to separate the small fish? (According to the color, ask the children to operate and the teacher will score. ) Besides size and color, how can we divide them? Blowing bubbles can be divided into 3 and 3. ) Now there are 3 points in 6, please think about it, there are also.
4. Teacher: Let's count together. Now there are several ways to divide 6. (4 ways) I'll tell you, oh, there are 5 ways to divide 6. Now I'm going to test you to see who can come up with a fifth method to divide 6. (Ask children to operate and find out the fifth division of 6. Five small fish live in the front, 1 small fish live in the back.
5. Teacher: Now we have all found the five points of 6. Please observe the five points of 6 and look at the numbers in front carefully. What did you find? In what order are they arranged (in chronological order)? Let's divide them in chronological order first, so that we won't miss them, and we can quickly find out the five divisions of 6.
Fourth, the composition of game consolidation 6.
1, Teacher: We have found all five divisions of 6. Now let's read the division formula together. (boys and girls read)
2. Teacher: The digital baby will play games with our children. Please close your eyes. The teacher took off a few numbers and there was only one number left on the paper. Please open your eyes and have a look. Which number is missing? Tell me the split formula of 6. (Play games in groups, play games many times)
Verb (abbreviation of verb) explains the operation and understands the operation requirements.
1, Teacher: Please divide the six points into two parts, and then record your points with numbers.
2. Teacher: There are still many types of points and combinations in the book, which need children to use their brains to fill in completely. Please use your little brains to compare who did the right thing. Come on.
3. Children operate their homework independently, and teachers tour to guide them.