1. Learn to classify objects according to one feature, and then classify them according to another feature, or classify two items that have been classified again.

2. Improve the ability of multi-angle thinking.

Prepare:

1, draw 12 physical card.

2. Teachers and students * * * collect the packages of various small commodities and label them with prices. Before the activity, display the goods on the shelves and cover them with cloth.

Process:

1, fly or not.

We have learned a lot about flying. Teacher, there are many cards here. Please have a look at what it is and divide it into two parts.

-Teachers show the cards one by one, classify the children for the first time after recognition, and explain the classification standards. (those who can fly and those who can't)

-Ask children to design simple and clear symbols for these two standards.

2. Natural and artificial.

-This 12 card can also be divided in another way. How to divide it?

-The teacher shows two signs of "man and robot" and "nature and artificiality" to remind children that some of these objects are natural and some are artificial, and reclassify them according to this standard.

-Ask individual children to come up and operate, test collectively, and define the classification standard.

3. Supermarket manager.

-children have learned the skill of dividing cards, and uncles and aunts in the supermarket want to ask you to help sort out the goods.

-Open the shelf. What goods are there in the supermarket? What's the price of each commodity?

According to the characteristics of object classification. Are these goods the same? Please put the same together.

-children carry out the first classification activity and explain the classification standards. (use)

-Classifying the divided objects for the second time according to another feature. Is there any difference between these divided goods? Can you give them another copy?

-Ask two children to operate and exchange classification standards with each other.

-all children test the classification results and clarify the classification standards again.

Feeling after the activity: During the activity, I deeply felt that teachers should face everything and pay attention to the individual differences in children's learning process, so that each child can improve to varying degrees. According to the differences of children's abilities, children with strong guiding ability should observe first, and then try to find the best classification method. Children with weak guidance ability can get the characteristics of secondary classification after trying one by one. In addition, what needs more attention is the cultivation of children's cooperative ability and the mode of group cooperative learning, which also needs to be further explored.