Reflections on Grandpa Mao Yisheng, an expert on the social bridge

Objectives: 1Enjoy the story, know that Mao Yisheng is a famous bridge expert in our country, and understand the meaning of building a bridge.

2.Knowing the role of piers on the bridge can explore ways to strengthen the bridge. 3.

Feel the joy of **. Event Preparation: 1

Soft plastic board or cardboard, building blocks and other bridging materials. 2.Flip chart "The Collapsed Bridge".

2.Teacher: Do the children know why Grandpa Mao Yisheng likes to build bridges?

Let's take a look at "The Story of Grandpa Mao Yisheng". 2. Listen to the story and understand the content of the story. 1.

Teacher: What kind of person do you think Grandpa Mao Yisheng is? Teachers:

Teacher: Children, why did the bridge collapse? 2.

Teacher: What happens to the people on the bridge after it collapses? How are you feeling?

3.Teacher: What would you do if you saw it by the river?

4.Teacher's conclusion: Building a strong bridge is very, very important, because it will affect the lives of many people.

Fourth, explore the role of bridge piers. 1.Teachers and children work together on load-bearing experiments.

Prepare two small tables with a suitable distance in between. Build a bridge out of a piece of soft plastic or cardboard. Ask the children to think about how they know how much weight the bridge can hold.

Put things on it, such as building blocks, etc. Ask the children to place the wooden blocks and count how quickly they will collapse when they are put in. Document the results.

It can be built into an arch bridge, can fix the two ends, and can pad the pier in the middle. Ask the children to do the work and test their ideas. The teacher proposes a solution and demonstrates:

How many things can be placed in the middle of the bridge with large blocks? Ask the children to experiment in the same way. Teacher's Summary:

Which bridge is your favorite? 2.End of event.

Extension of the activity: Children use building blocks to build a large beam bridge.

Mao Yisheng (January 9, 1896 - November 12, 1989), born in Dantu County, Zhenjiang City, Jiangsu Province, is an expert in bridge engineering, an academician of the Chinese Academy of Sciences, a foreign academician of the National Academy of Engineering of the United States, and an academician of the ** Research Institute. His main achievements are the design and construction of the Qiantang River Bridge, and he has written "Qiantang River Bridge", "China's Ancient Bridges and New Bridges" and so on.

Regarding Mao Yisheng's reflection, what do you mean?

1. Character anecdotes Mao Yisheng has loved reading since he was a child and is good at reading. Many people admired his miraculous memory, but they didn't know that it was tempered by his diligent recitation. To exercise memory.

Mao Yisheng stood by the river every morning and recited ancient poems and texts. On the river, the sails come and go, and the fishing songs are bursting, and he can turn a blind eye and hear but not hear.

"The Mystery of the Marquee" mainly tells the story of Mao Yisheng when he was a child.

By writing that Mao Yisheng became interested in his own family when he was a child, and then used his brain to understand some principles of the marquee, through which he told the reader: he was good at observation when he was a teenager, and he thought carefully and would solve the problems he encountered.

It tells the story of the famous bridge expert Mao Yisheng's grandfather when he was a child. By writing the story of Mao Yisheng's interest in the two marquee lamps at home when he was a child, he used his own brain and hands to understand why the marquee turned and how it turned fast. Tell us:

Grandpa Mao Yisheng was very good at observation when he was a teenager, and he liked to think and explore scientific truth in observation. Educate us to develop the habit of using our brains and hands to solve the problems we encounter.

"The Mystery of the Marquee" is about the famous bridge expert Bud Yisheng Grandpa!