"Why is the sea water blue" PPT courseware 2

Description

"Why is the sea water blue" PPT courseware 2

learning target

1. Read the text aloud and grasp the content of the text.

2. Understand the importance of "curiosity" to scientific inquiry, and establish students' academic concepts of being diligent and inquiring.

3. Understand the profound sentences in the text and experience Raman’s spirit of continuous pursuit and courage to explore.

4. Learn to read the four words "lazy, taboo, taboo, liquid" and the three words "lazy, guilty, liquid", and master the words "inert gas, guilty, liquid, eyes closed and ears closed, sunshine warm, warm wind blowing, source" Continuously" and other words.

create situations

Raman (1888-1970), an Indian, his father was a mathematics professor. At the age of 11, he finished high school and entered AVN University. Two years later, he transferred to the famous Presidency University in Madras (now the University of Chennai), 15 At the age of 18, he received his bachelor's degree at the top of his class and received multiple awards in physics and English science. He was the first Asian scientist to receive the Nobel Prize in 1930 for his work on light scattering and the Raman effect. He also made contributions to acoustics, optics, crystallographic dynamics, color and their Research in perception.

read it

taboo guilt laziness taboo liquid

understand words

inert gas guilt liquid close eyes and ears

The sunshine is melting and the warm breeze is flowing continuously.

first reading perception

Read the text in your favorite way and talk about the main content of the text.

The text was first written on a ship in the Mediterranean. Raman explained to a little boy that the water was blue because it reflected the color of the sky.

Raman doubted his explanation to the little boy, and later studied that seawater scatters sunlight to produce a blue color, thus discovering a ubiquitous light scattering effect.

The boy's story at the end reminds people: new discoveries lie in the "unknown" within your "known".

Read carefully

Read paragraphs 1-8 aloud and think: What did you learn from the conversation between the boy and his mother?

The boy's constant "why" aroused Raman's thinking, awakened his "curiosity", made him doubt his explanation to the child, and embarked on scientific exploration, discovering a ubiquitous light scattering effect. , known as the "Raman effect". This discovery was called "one of the most remarkable discoveries in experimental physics in the 1920s" by the Royal Society.

Please talk about your views on "curiosity" based on your own reality.

Read paragraphs 9-11 of the text silently and think about:

What does the "why" of the boy on the Mediterranean ship have to do with Raman winning the Nobel Prize in Physics?

That child full of curiosity, those big eyes seeking knowledge, and those "whys" that kept coming out made Raman feel deeply guilty. As a scientist, he found that he had unknowingly lost the boy's curiosity of pursuing the "unknown" among the "known", and he couldn't help but feel shocked.

Raman answered the boy's question why he felt "guilty"?

The reason for guilt is: because the explanation that "the blue of the seawater reflects the color of the sky" was proposed by the great British scientist Rayleigh, and almost everyone, including Raman, agrees with this explanation. Raman felt guilty for following the crowd blindly instead of asking "why" like a boy.

Find sentences from the text that you think are inspiring or beneficial to others, and copy them into "My Collection Book".

The story of the boy with endless questions constantly reminds people: Never give up your curiosity about the "known", maybe new discoveries are in the "unknown" of the "known".

"The story of the boy with endless questions" is actually the boy's questions that arouse Raman's curiosity to pursue the "unknown" among the "known". It is Raman's pursuit of the "unknown" that leads to the new "known". "s story.

Think again:

Why is it said that "the question mark of the boy on the Mediterranean ship led Raman to the Nobel Prize in Physics"?

Because it was this boy's strong curiosity to pursue the "unknown" among the "known" that made Raman doubt Rayleigh's conclusion and feel guilty for his loss of curiosity, and then asked the boy's question mark Continuing further research, he finally discovered the light scattering effect and won the Nobel Prize in Physics.

Expand and extend

1. Based on the text content, answer: What will happen if you lose curiosity in scientific research?

2. Have you ever been curious about things or phenomena in your study and life? Have you ever asked “why”?

Losing curiosity is the biggest taboo for scientific discovery and invention, and it will bring terrible consequences of closing one's eyes and stopping moving forward.

counterargument:

Liebig: Four years before the chemist Inla discovered the chemical element "bromine", Liebig missed the discovery of the chemical element "bromine" because he lacked a strict scientific attitude and did not carefully analyze the elements in the brown bottles sent by German businessmen. . You must know that this brown bottle contains "bromine" that was unknown at the time. Based on the conditions at the time and his research, he was fully capable of discovering the element "bromine".

Class summary:

We must be like the boy on the Mediterranean ship, with the curiosity to pursue the "unknown" among the "known". Because when you have curiosity in study and life, like to observe, be good at thinking, and dare to question, then you will definitely have more new discoveries and new gains.

Compliance testing

1. Read the pinyin and write the words.

inert guilt liquid

Taboo: immature

2. Write the words as they appear.

Unknowingly: _____, ______, ______, ______.

Continuously: _____, ______, _____, ______.

Warm breeze: ______, ______, ______, _____.

Operation

1. Copy new words.

2. Excerpt sentences from the text that you think are inspiring or helpful.

Keywords: Teaching courseware on why the sea water is blue, Chinese courseware for the second volume of the sixth grade Chinese version S version, download of the sixth grade Chinese slideshow courseware, download of PPT courseware on why the sea water is blue, in .ppt format

For more information about the PPT courseware "Why is the sea water blue?", please click on the ppt tag of "Why is the sea water blue?"

"Why is the sea water blue" PPT courseware 3:

"Why is the sea water blue" PPT courseware 3 Character introduction Raman, Indian physicist, 1888-1970 won the 1930 Nobel Prize in Physics for his research work on light scattering and the discovery of the Raman effect. He is the first person in Asia to win the Nobel Prize. He found...

"Why is the sea water blue" PPT courseware:

"Why is the sea water blue" PPT courseware word collection: blue waves, vast expanse of sunshine, warm breeze, slowly famous in the world, endless, deeply guilty, unknowingly, quite accomplished, eyes closed, hard of hearing, hard to believe, inert gas, interesting, guilty, liquid, speechless, children gushing ..

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Update Time: 2024-07-05

This template belongs to Chinese courseware S Edition Sixth Grade Chinese Volume 2 industry PPT template

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