Hello everyone! Today, the content of my simulation class is "how much to count" the math activities in the middle class. This activity takes the mother duck and duckling playing hide-and-seek as situational clues, and encourages children to master the numbers within 7 by using the methods of visual inspection and hand-mouth coincidence. On this basis, observe the different characteristics of ducklings with children, help children summarize and sort out scattered perceptual experiences, clearly highlight the characteristics and quantity of objects, and make children feel the quantitative relationship contained in objects, thus forming a preliminary concept of number and promoting the development of thinking ability.

Before the activity, I prepared an interactive courseware for the children. Through the picture 1, "Ducks are playing hide-and-seek on the farm, some are hiding in the grass and leaking flowers, some are hiding behind and so on." , so as to achieve the goal 1: correctly judge the number within 7 by visual inspection or counting. Figure 2 "Classify seven ducks according to different characteristics, such as three red mouths and four yellow mouths; 2 no Chinese-style chest covering, 5 Chinese-style chest covering and the like? " To achieve the second goal, "initially perceive the relationship between numbers in observation, comparison and classification". I also prepared matching operation cards, markers, digital cards and so on for the children. The following simulation activities officially started:

1. Play the courseware and draw out the activities.

Teacher: Look at the big screen, children. Who is here? By the way, it's mother duck. Mother duck is very happy today. She wants to play hide-and-seek with the ducklings! The ducklings are hiding in this farm. Let's go and find it together. Where are the ducklings hiding? Your little eyes are really amazing. How many ducklings did you find at a time? This farm is really big. The teacher will lend you a telescope to look carefully. How do you know the duckling is hiding in the grass? Oh, you saw the flowers on the duck head. What do you see about this duckling? Where is it? Do you all want to find it? It seems that everyone is a group of warm-hearted good children. Let's go to the farm and look again. The teacher has prepared a map of the farm just like mine for you. Your eyes are sharp. This time, let's see who has the sharpest ears. Listen carefully: first circle the ducklings with a pen, then count how many there are, and finally find a digital friend to stick on the ducklings' back. You got it? It's a lot to ask, it doesn't matter, let's recall together. ...

2. Children's operation and teacher's guidance

Teacher: OK, let's help mother duck find the duckling. Find a good child and stick it on the blackboard in front of you. Can you tell me how many ducks you have found? What about you? Let's see who finds the most ducklings.

3. Collective inspection and re-operation

Teacher: Now everyone has found it. Some children are looking for five ducklings, some are looking for six, and there are seven. How many? Let's go and find it together. Please look at the big screen. Where is the duckling hiding? How did you find this duckling? Oh, you saw the duck feet, thank you, it's amazing! Baby, you found three, great! Everyone applauded for her. Can you tell me how you found the duck behind the big tree? So you see its tail leaking out, thank you; Who else wants to find it? Did you find everything? Now, from top to bottom, from left to right, put out your little hand. Let's count 1.2.3.4.5.6.7 How many ducklings are there? Seven ducklings. Look for different children quickly. The found child helped a group of other children. Come and get the surgical card.

4. Observe and compare, classify

Teacher: Children, you helped the mother duck find seven ducklings. Is her duckling the same? What is the difference? The mouth color is different. You can see three red mouths and four yellow mouths at a glance. What is the difference? How many didn't wear Chinese-style chest covering, two, and how many did? 5; What else did you find? How many flowers? 1, our eyes can see it at once. What about those without flowers? Let's count, 1.2.3.4.5.6 is right, 1 and 6 add up to 7;

Step 5: Browse the scenario and end the activity.

Teacher: Children really have the ability to help the mother duck find her children. Thank you! What should we say? You're welcome. Let's go for a walk with Mother Duck!