Key points:
Understand the rules of solitaire game and make solitaire cards by comparison and corresponding experience.
Difficulties:
1. Children distinguish the boundaries between front and back cards. The reason is that the solitaire card itself consists of two small parts, which is easy to cause confusion on the child identification card.
2. Inference before and after operation. The reason is that the child's reverse thinking is immature and easily misled by a known number nearby.
Solution strategy:
1. Step-by-step solution method: With the help of two-color cards as teaching AIDS, the forward reasoning gradually transits to the reverse reasoning.
2. Resource * * * sharing method: To carry out operation activities in the form of group cooperation can solve the difficulty of filling vacancies in the form of mutual education among soldiers and realize resources * * *.
Activity objectives:
1. Understand the rules of solitaire game and make solitaire cards with corresponding experience.
2. Try to introduce and communicate your own calculation results in concise language, and be able to express your meaning with previous mathematical experience.
Activity flow:
The first link: lead to the topic with "dragon dance".
Children are free to say where they have seen the "dragon".
The teacher's goal: to make a natural connection and pave the way for learning solitaire, and to subconsciously penetrate the praise of China tradition.
The second link: observe and find the law of solitaire.
How is this "dragon" connected? What are the characteristics of the body?
Teacher's goal: 2. Let children initially perceive the basic methods of solitaire game through image icons, and stimulate their desire to participate in the operation.
The third link: hierarchical operation: solitaire and vacancy filling.
(Four kinds of homework materials with different difficulties)
Teacher's goal: let children with different abilities learn solitaire game methods with different materials, experience the fun of the game, and apply regular learning to reasoning.
The fourth link: group cooperation-counting things and solitaire cards.
Teacher's goal: improve the regularity and difficulty of solitaire game, and urge children to think from multiple angles and solve problems from multiple angles.