Please describe what kind of person Zhang Heng is based on the article.

Who is the child counting stars? Hurry and look for it in the text. New words must be read accurately, sentences must be read clearly, and capable children try to read the text beautifully.

Who can tell me who wrote this story?

Show: Zhang Heng, who is going to call him? Note that these two new words have back nasal sounds.

This word "heng" is rather complicated. Does anyone have a good way to remember it? Writing on the blackboard: Zhang Heng

2. Study the last paragraph of the text and teach some new words.

(1) Teacher: What kind of person is Zhang Heng?

Where did you know that? Show the last paragraph. Let’s read it too

Teacher: The teacher picks out the important words, who will read them, and read them together.

Present: Zhang Heng, Han Dynasty, diligent study, famous astronomer

Who can use these words to introduce Zhang Heng to everyone.

Teacher: Put these words back into the sentences and read them together.

(2) Teacher: What do astronomers study?

Han Dynasty: A dynasty in ancient China, 1,780 years ago.

The famous astronomer wrote on the blackboard: Astronomer

(Experts who study where the sun, stars, moon and other celestial bodies are distributed and how they move are called astronomers.)

Find a synonym for "famous".

(3) Teacher: Why did Zhang Heng become a famous astronomer? (Write on the blackboard: Study hard)

Teacher: How does studying hard mean studying hard?

He studies very seriously and carefully, and is not afraid of hardships or difficulties. He forgets to eat and sleep all day long, and he always finds ways to overcome difficulties when he encounters them. )

Teach and write the word "study".

Change the radicals for "drill" and use familiar characters to remember new ones; "yan" is written in a model while saying, "Drill, drill, drill, drill, drill all the stones to study."

Students practice writing.

(4) Teacher: Zhang Heng was an astronomer, and he also discovered the famous seismograph. Please see--

Show: The seismograph was invented by Zhang Heng. It can observe the movement of the sun, moon and stars in the sky. The seismograph is the earliest instrument in the world created by Zhang Heng to predict earthquakes and determine the direction of earthquakes. It seems that Zhang Heng is indeed the A famous astronomer.

In fact, Zhang Heng is still a famous writer and painter.

3. Teacher: It’s amazing. How did Zhang Heng count stars when he was a child? Please read the first natural paragraph freely, find the sentences, and underline them with "--" (name them) [show two sentences 2 and 3]

A child is sitting in the yard, leaning against his grandma, Raise your head and point to the sky to count the stars. One, two, counting to hundreds.

(1) Teacher: OK, the sentence is read correctly. The word "Yang" is pronounced with the back nose. Does anyone have a good way to remember it? (Compare with "ying")

Teacher: What does it look like when you raise your head? Do the movements to see.

Teacher: Some students only raise their heads slightly, and they should be raised high.

(2) Teacher: Can you circle the words that look like sentences and have a few actions of counting stars?

Feedback, found it? Name the five verbs

(3) The teacher reads the sentence. Can you please pose according to these verbs? The teacher reads the sentences and shows the movements.

Teacher: From your movements, I know that you have understood the meaning of the movements. Let us do the movements and count the stars with Zhang Heng.

(4) Teacher: One, two, let’s count slowly, one, two, three... (about 20 or so)

Guiding number Slow down and point out that "," is used in the sentence.

Do you know why we count slowly?

Teacher: Well, Zhang Heng was counting, observing, and thinking at the same time.

(Continue counting)

(5) Ask by name: "Xiao Zhang Heng, you have counted more than 20 pills, how do you feel?"

Default: Health: Hand pain

Teacher: Why does my hand hurt? What do you mean?

Yes, point one by one, be sure to point correctly

Student: Neck pain

Teacher: Why does the neck hurt?

Of course it hurts if I raise my head for so long

Student: My back is sore

Teacher: Yes, Zhang Heng is just leaning on it, not lying down With.

Teacher: Just like that, Zhang Heng counted several hundred. How would he feel? (Health: hand pain, neck pain, backache...)

So tired, did you stop to rest in the middle? (No) How do you know? Student: Always

(6) From this, what kind of child can you tell Zhang Heng is? (The teacher randomly wrote on the blackboard: Don’t be afraid of getting tired, be serious, be patient...)

Summary: Like him who is not afraid of getting tired, is serious and patient in counting stars, no wonder he studies hard, there are only people like him Only by studying hard can you become a famous astronomer.

(7) Let us read this natural paragraph together and pick up the book.

Teacher’s summary: How many nights did little Zhang Heng count the stars patiently, seriously and hard like this? Grandma saw him and said he was stupid. Is he really stupid? When grandpa met him, what astronomical knowledge did he tell him? Let’s study in the next class