Activity conception: "number" is indispensable in daily life such as food, clothing, housing and transportation. There is hardly a nation that does not know the concepts or names related to numbers, such as 1, 2, 3, ... or "many". As far as the simplest things are concerned, they are inseparable from our lives. Mathematics is an abstract science. To learn mathematics well, children must have rich sensory experience and cultivate logical thinking ability. Montessori mathematics education is based on sensory education, which allows children to accumulate sensory experience when operating sensory teaching AIDS, abstract numbers from concrete things and gradually form the concept of numbers. In this process, the child's intelligence is opened, and with the help of teaching AIDS, he can really become a thinking child. In this math activity, I will play an addition game with the values on stamps, and use Montessori's error correction to let children play freely and deepen their understanding of numbers.

Suitable age: over 5 years old

Direct purpose: 1, using stamp game teaching AIDS to do addition.

2. Strengthen the practice of adding large numbers.

Indirect purpose: 1 to deepen the understanding of numbers.

2. Cultivate the hobby of calculation.

Preparation materials: 1, tray

2. Stamp box teaching AIDS

3, crayons, title cards

4. Add and correct the red line on the blackboard

Basic operation:

First, review the addition in 10 and correct the mistakes.

Second, introduce the name of this work: joining the stamp game.

Third, review some simple stamp knowledge.

1, take out the problem card with addition written on it to consolidate the meaning of addend to children.

2. Use stamps to represent numbers.

3. Let the children observe the numbers and ask them how many digits they have. Take the corresponding positioning horses and arrange them in the order of one, ten, one hundred and one thousand.

4. Select stamps according to the title card, and put the stamps corresponding to the numbers under the corresponding positioning horse.

5. Manipulate the stamp to get a vertical result.

Fourth, give children different questions and guide them to calculate independently. Children manipulate, teachers tour to guide, and emphasize quiet homework.

5. When the homework is over, please put the teaching AIDS back and leave the classroom.

Regional expansion: provide stamp boxes and practice carry addition horizontally.

Activity reflection:

This is a preliminary attempt of Montessori's mathematics classroom teaching activities. By manipulating the images of stamp teaching AIDS, children initially learn to add without carrying them. During the whole process, the children worked freely and orderly in a quiet environment.

This lesson strengthens children's practice of adding large numbers and deepens their understanding of logarithm, laying the foundation for addition operation in primary school. In the activity, a three-stage teaching method is adopted to review stamps with different colors representing different numbers, so as to strengthen children's understanding of numbers. The final error correction allows children to find and correct their own mistakes according to the standard, without the teacher's prompt, which improves their autonomy in learning mathematics, cultivates serious, patient and serious study habits, and improves their learning consciousness and independent thinking ability. However, when presenting a new job, the teacher's language needs to be more concise, reduce the waiting time of children, give children more time to practice freely, and guide children in time when problems are found.