Current location - Training Enrollment Network - Mathematics courses - 3. Matchsticks (1) How many matchsticks do you need to form 10 triangles? (2) If n triangles are to be formed.
3. Matchsticks (1) How many matchsticks do you need to form 10 triangles? (2) If n triangles are to be formed.
If you want to make 10 triangles and 2 1 matches, it takes 2n+ 1 matches to make n triangles.

1. Question raised: The relationship between matchstick puzzles and the number of triangles.

In the matchstick game, try to build a certain number of triangles with the least number of matchsticks. It is mentioned in the title that it takes 2 1 matchsticks to build 10 triangles and 2n+ 1 matchsticks to build n triangles. This paper discusses the relationship between the number of triangles and the number of matchsticks needed, and describes it with a mathematical model.

2. Establishment of mathematical model: the linear relationship between matchsticks and triangles.

According to the topic information, the following mathematical model can be established: for n triangles, the number of matchsticks required is f(n)=2n+ 1. This model is actually a linear equation, where n represents the number of triangles and f(n) represents the number of matchsticks needed. Through this model, we can predict the number of matchsticks needed to build any number of triangles.

The meaning of spelling match sticks

1, cultivate logical thinking and spatial imagination

Matchstick game requires players to design different patterns or shapes according to the number and shape of matchsticks through logical thinking and spatial imagination. This kind of game can exercise players' logical thinking and spatial imagination, and improve their ability to solve problems. At the same time, players need to constantly adjust the optimization scheme in the process of stitching to achieve the best results.

2. Cultivate patience and carefulness

Matchstick game requires players' patience and can't rush for success. In the process of splicing, players need to be careful and pay attention to the accuracy and completeness of every detail. This kind of game can cultivate players' patience and carefulness, pay more attention to details and processes, and improve their attention and patience.

3. Enhance teamwork and communication skills.

Matchstick game can be played by many people, and players need to communicate and cooperate to complete a work together. This kind of game can enhance players' teamwork and communication skills, learn to cooperate and support each other, and improve their social and interpersonal skills.