Understand the odd and even numbers 1 1. Activity objectives.
Single and even numbers that can distinguish 10.
Like math activities, willing to participate in various arithmetic games, and cultivate rebellious thinking.
Initially cultivate the ability of observation, comparison and reaction.
Develop the flexibility of thinking.
Second, the key points and difficulties
Understand the meaning of singular and even numbers.
Third, the creation of materials and environment.
Put some items in pairs in the activity room.
Provide operating materials such as wooden beads and snowflakes in the teaching corner.
All kinds of cotton velvet fruits, animals, teaching cards, Chinese character cards.
Fourth, design ideas.
Children's distinction and understanding of odd numbers and even numbers within 10 generally go through the following processes: the first understanding of the concepts of odd and double, that is, knowing that an object is strange, such as a person's mouth is strange. Two objects are paired, such as a pair of hands and eyes. The second is to form the skills to distinguish whether a group of objects are paired or paired. That is to say, if a group of objects has two numbers, the last one is even and the last one is singular, then the actual operation can be carried out. Third, use the above skills to distinguish the odd and even numbers within 10. For example, six objects are represented by the number 6 first, and then it is known that six objects are paired through operation, that is, it is determined that 6 is an even number. After this process, children can master the odd and even numbers within 10 on the basis of understanding, and they can draw inferences from one another.
Verb (abbreviation of verb) activity flow
Perception-Operation-Understanding-Transfer
Perceive the meaning of single and double by looking for activities.
(1) Let the children find out what they have in pairs and individually.
(2) Let the children look for items in the activity room in pairs and single groups.
(3) Let the children tell the pairs or singles of objects in nature.
2. Form the skills of distinguishing single and double numbers through arithmetic activities.
(1) Teach children to know Chinese characters: single and double.
(2) Discuss how to know whether a group of objects are paired or not, such as whether the children in the class are single or double. Let the children understand the operational definition of distinguishing single and double numbers, that is, "two and two, ..."
(3) Let children operate the materials in the teaching corner, distinguish whether the objects in the box are double or single, and paste the corresponding Chinese characters. 3. Learn how to determine whether a number is singular or even through discussion.
(1) Show the number 1~ 10, and let the children divide the number into odd and even numbers.
(2) Discuss why 1, 3,5,7,9 is singular, and 2,4,6,8, 10 is even.
Let children paste the corresponding fruit or animal card under each number first, and then prove it with operational definition.
(3) Show the pictures and let the children judge whether the objects in the pictures are paired or single.
Discuss how to make a correct judgment quickly (this link focuses on training children's thinking flexibility. )
(4) Cultivate children's ability to draw inferences from others through migration activities.
Activity reflection
1. This activity starts with a game and ends in the game. The whole activity runs through a series of dynamic and static games, combined with children's daily life experience, so that children can better master even and odd numbers in a relaxed and happy atmosphere. Rich and diverse forms make abstract mathematics vivid, which makes children more acceptable and more fond of learning.
2. The regulations of the whole activity are relatively clear. It is an effective way to break through the teaching focus by learning odd and even numbers with children's daily life experience and using observation, operation, game development, induction, especially operation. Children can operate by themselves, plus reasonable guidance from teachers. It has achieved the goal of helping children sort out their experiences and clarify their concepts.
3. Children can actively participate in the game, the use of teaching AIDS conforms to the age characteristics of children, and children can basically complete it independently. In the operation, children can explore and gain experience by themselves, and all kinds of intelligence have been developed and improved.
4. The difficulty of this teaching activity is not ideal. In the fourth link, only a few children can accurately tell whether the number within 20 is odd or even according to the law of even numbers. It is abstract to judge directly with cards, which is difficult for children to master. School tools should be put in first for children to operate. How can children accurately grasp whether any number is singular or even? It is a question that I will think and explore next.
Understand the goal of single and double number 2 activities in the large class mathematics teaching plan;
1. Distinguish even and odd numbers by watching ppt courseware, drawing circles, counting and other activities.
2. Cultivate children's ability to find even and odd numbers from things around them.
3. Stimulate children's interest in odd and even numbers and actively participate in math activities.
4. Experience the life of mathematics and the fun of mathematics games.
5. Actively participate in mathematics activities and experience the fun in mathematics activities.
Activity preparation:
Self-made ppt courseware, several cards with water dolls, colored pens and a mysterious bag.
Activity flow:
1. Children, there are many digital babies coming to play games with us today. Look who's here ... play ppt courseware (children watch and say: digital babies 3, 5, 9...7). Oh, there are so many digital babies playing with us. Let's shout the password "one two one, one two one …" to help these digital babies line up in order.
2. Group activities: Continue to watch ppt courseware.
(1) Guide children to observe what is on the screen? What color are they? How do you line up? (Children: There are water dolls, red water dolls and green water dolls. They are two teams and two rows. )
(2) Please count the number of children collectively and individually, and count the number of water dolls in each group.
(3) Guide children to observe and discuss:
Are each group of water dolls circled by two in the picture?
How many groups of water dolls have been circled in pairs? What are those numbers?
Which groups of water dolls went around in pairs, but they didn't finish at last? What is the number?
(4) Guide children to follow the teacher's answer:
All circled 2, 4, 6, 8 and 10 are called even numbers, and all circled 1, 3, 5, 7 and 9 are called singular numbers.
The teacher summed up: A, like 1, 3, 5, 7, 9, there will always be a number left in the end, which is called singular.
Like 2, 4, 6, 8, 10, all the numbers that can be counted are called even numbers.
B. There are five odd numbers and five even numbers in 10.
C, odd numbers are next to even numbers, and even numbers are next to odd numbers. They are all good friends holding hands.
(5) Simply introduce odd and even numbers to children.
Tell the teacher, children, how many names do you have? Inspire children to tell what teachers and children call you in kindergarten and what parents call you at home. (My name is Li Yan, also called Beibei) Teacher: The teacher told you that digital babies also have two names. Odd numbers are also called odd numbers and even numbers are also called even numbers.
(6) Find out and tell which ones are singular and which ones are even.
3. Distinguish between odd numbers and even numbers in games and operations.
(1) Find out which ones are singular and which ones are even. (For example, one head is singular, two hands are even, one mouth is singular, two ears are even, and so on. )
(2) Practice card operation activities
(3) Group games: hold yourself in odd numbers, and find friends to hold yourself in even numbers.
Activity expansion:
After the children come home, what is odd and what is even at home are recorded and handed over to the kindergarten teacher tomorrow.
Activity reflection:
1, familiar with textbooks, clear teaching ideas and adequate preparation before class.
2. According to the children's thinking characteristics, I started with the familiar objects around the children, and gradually transitioned to being able to get rid of the objects and speak out according to my existing life experience. Children find things in pairs, and their thinking is also exercised. In the activity, the agility and correctness of children's thinking are developed and strengthened in the speed and change of the game and the collective and individual changes of the form.
I can't inspire some children with poor acceptance. I will help these children more in the future.
Understand the activity objectives of single and double numbers 3 in the large class mathematics teaching plan;
1, perceive and understand the meaning of odd and even numbers within 10.
2. With the help of whiteboard teaching, master the odd and even numbers in personal games and human-computer interaction.
3. Be able to actively participate in discussions and boldly operate whiteboard courseware.
Activity preparation:
Electronic whiteboard child operation clip
Activity flow:
1. Play the game of "Finding Friends" and understand the meaning of even and odd numbers.
Lead: "children, do you like playing games?" The teacher invited several children to play the game of finding friends, and two children found good friends to see if they could all find good friends. "
2. Verify odd and even numbers by pairing animals.
Lead: "Small animals also want to play the game of finding friends. Who's there? " Are they singular or even?
Use a curtain to block animal pictures and stimulate children's interest in the game. Use the magnifying glass function to enlarge the part, let the children count the groups intuitively, and then use the drag function of the whiteboard to pair the small animals to verify whether the numbers "5, 6, 7" are singular or even. )
3. Distinguish between odd numbers and even numbers within 10.
Lead: "There are some small animals here. They got lost. They want to ask our children for help. Send odd animals to odd families and even animals to even families. Who wants to help? "
(use categoyr-image and whirlwind game to test children's mastery from objects to ideas to numbers to single and even numbers. )
4. Children's operation.
When correcting homework, using the whiteboard can show the knowledge and understanding of single and even numbers more intuitively, and it is also conducive to mutual inspection and learning among peers. )