1. Review the counting method of pomegranate receptacle in closed arrangement.

2. Try to record the classification results by statistical methods, and be willing to introduce your own calculation results in concise language.

Teaching preparation

Have preliminary contact with the closed number; One sorting box, one statistical table and one pen; Pomegranate flower trays picked up by children, one for each group. "Pomegranate grows up quickly" operation diagram: a small pomegranate, a green pomegranate and a mature pomegranate are held as pomegranate flowers in turn.

teaching process

1. Review the counting method of closed arrangement.

(1) Count the petals of pomegranate flower Tori.

Teacher: Please ask each child to take a pomegranate receptacle from the plate and carefully count how many petals it has. How did you figure it out?

Summary: When counting petals, we must first determine a starting place, which can be marked, and then count one by one, so that we can know where to start counting, and we will not miss or repeat counting.

(2) Check each other and re-determine the number of petals of pomegranate receptacle.

Summary: The number of pomegranate petals is different.

2. According to the number of petals of receptacle.

(1) Use the classic dialogue of the story "Three Butterflies" to illustrate the operation requirements. For example, "Room 4 said,' Please come in with four pomegranate flowers, not others. """No.5 said,' Please bring five pomegranate petals and nothing else.' "

Category box:

(2) Children's operation: Send five pomegranate flowers to the corresponding digital sorting boxes according to the number of petals in the receptacle.

(3) Show the children to each other, introduce their classification results, and talk about how many pomegranate flower trays were invited in Room 4, Room 5, Room 6 and Room 7 respectively.

3. Try to use statistical methods to record the classification results.

(1) Teachers and children discuss ways to establish recording.

Show me the statistics: let the children carefully observe what they see on the recording paper. Guess what they mean respectively?

(2) Children's operation, using dot symbols to record the number of pomegranate receptacles with different petals in the sorting box.

Teachers' itinerant guidance: pay attention to the methods and steps recorded by each child and understand the children's problem-solving strategies.

(3) Guide the children who finished first to observe their own recording paper and find out the most pomegranate flower holders and the least pomegranate flower holders.

4. The game "Pomegranate grows up quickly".

(1) Teachers and children establish the rules of the game: briefly state the number of pomegranate receptacles with different petals, and the pomegranate receptacles will grow up slowly after correct statement. (Children express the number of pomegranate receptacle recorded by themselves in complete language. For example, there are 65,438+0 5-petal pomegranate flower receptacles and 3 6-petal pomegranate flower receptacles ... After children tell stories correctly, they demonstrate the growth process of pomegranate with drawing teaching AIDS. )

(2) Communicate with each other and learn to express their calculation results in correct language.

(3) Play the game "Pomegranate grows fast", and children will tell it in turn, and show the process of pomegranate receptacle growing slowly through pulling.

Going out design intention

We designed a mathematical game activity with children's spring outing as the main line. Through various forms of exploration, we guided children to truly perceive the concepts of quantity within 8 and sorting by quantity.

Teaching objectives

1. Correctly perceive the numbers within 8, and try to sort them by numbers.

2. Willing to participate in mathematical operations, able to observe and distinguish carefully while operating.

Teaching preparation

Preparation of teaching AIDS: two sets of physical cards, quantity1~ 8; Lamb headdress; Wisdom stick.

Preparation of learning tools: group 1: 6 sets of fruit cards, quantity1~ 8; The second group: 6 sets of ladybug sorting materials; The third group: 6 sets of digital solitaire materials.

teaching process

1. Teachers and students * * * enter with the music of "Outing".

Teacher: Do you know what season it is, children? The scenery in spring is beautiful. Shall we go for an outing today?

2. Perceive the number within 8 collectively and rank it.

(1) Teacher: Let's line up and start! Look, what is this? (There is a red, yellow and green flag on each side) Please look at the color code on your hand. Please stand behind the flag of the same color and start!

Please count the children. How many ideas are there on your card? (Guide children to observe carefully and feel the number of ideas on the card) Tell me which team you are on. (Line up in sequence)

(3) Please look at the ideas in your hands and line up in the order from less to more.

3. Set the stage and help the lamb.

(1) Teacher: Lamb, why are you crying?

Lamb: The wolf lined up for me to ask questions and said that if I can't do it, he would come and eat me. Can you help me?

(2) Show the operation sheet to help the lambs solve the problem collectively.

Teacher: Let's have a look. What fruit is there on it? How are they arranged? How many fruits are there behind a pineapple? Why? Let the children talk and arrange the fruits.

(3) Say goodbye to the lamb and move on.

4. Come to the smart house.

Teacher: Hey, there is a smart house. Let's go and have a look!

(1) Sister Wisdom receives children and introduces the names and requirements of group activities:

The first group: the fruit babies line up (first look at the place where the red flag is inserted in the box, and then line up the fruit babies according to the number). )

The second group: line up the ladybug babies (first look at some ideas on the ladybug, and then line up the ladybug babies in order from the five-pointed star. )

The third group: queuing digital baby (look at the position of the locomotive first, and then queue up in numerical order on the carriage. )

(2) Children's operation and exploration. (Teachers tour to guide and help children with weak abilities. )

(3) Teacher's summary: Today, the children are great. They played three kinds of queuing games in the smart room, and many children lined up in the order from less to more. Think about it, children. What else can we do? If you think of other good ways, please tell us again, ok?

(4) Wisdom elder sister gives gifts.

The outing is over.