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2021-10-11 Teaching Note

Use it or lose it!

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Random Talk Before Class

This is the first class after the holidays. Open your cloud class app and we will sign in by gesture as usual. Listen carefully and follow my instructions to draw the gesture.

Here’s the result of the sign-in:

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Let’s learn how to describe the result in English.

Who would like to try?

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There are 39 students in our class. This time, 35 students have signed in, and 4 students are not here. One student (Zhou Run) asked for leave. Additionally, there are 3 students who are present but failed to sign in for some reason.

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Succeeding in English

The words "succeed" and its variations are commonly used.

• Succeed
• Success
• Successfully
• Successfully

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Python is No.1

According to the TIOBE Index, Python has become the most popular programming language.

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Universe = Time + Space

• Time = Past (History) + Present (Miracle) + Future (Dream)
• Space = Upper + Lower + Left + Right + Front + Back

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3D Games

3D Games are three-dimensional games.

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Math Practice

Question: How many students are not here this time?

We can solve this problem by subtraction.

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However, there’s a change in the final result. Only one student is not here, and he asked for leave. (not here + not asking for leave = absent)

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Arithmetic Operations

In our daily life, arithmetic operations are essential.

Arithmetic Operations:

• Addition (plus)
• Subtraction (minus)
• Multiplication (times)
• Division (divided by)

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Task: Look up these four words in your dictionary and pay attention to their pronunciation, spelling, and meaning.

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Proverb:

"You can lead a horse to water, but you can’t make it drink."(It’s totally up to you. The future is in your own hands.)

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Subtraction Example:

39 - 38 = 1

• Daily English: If you subtract 38 from 39, you will get 1.
• Math English: Thirty-nine minus thirty-eight equals one.

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Addition Example:

38 + 1 = 39

• Daily English: If you add one to 38, you will get 39.
• Math English: Thirty-eight plus one equals thirty-nine.

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Python Practice

Start PyCharm and write a Python program to add two integers.

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Word Study

• Law: 法律、法规、规则、定律
  We must obey the law; otherwise, we will be punished.
• Newton’s Laws of Motion
  In middle school, we learned about Newton’s Laws of Motion.

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