"How to Make It Bigger" Tiny World PPT Teaching Courseware

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"How to Make It Bigger" Tiny World PPT Teaching Courseware

Part One Content: Collaborative Exploration

Discussion: The magnification power of a convex lens is limited. How can we make objects larger?

Explore research:

Use two hands in tandem or one up and down to adjust the distance between them to observe the object, then remove one lens and observe the object with only one lens. Repeat it several times and see what you find?

Discovery: When two convex lenses are properly combined to observe an object, the object you see will be larger.

Summary: In the 17th century, people combined two convex lenses. One convex lens further magnified the image formed by the other convex lens, which significantly improved the magnification ability. This was the early microscope.

How to make PPT bigger, part 2: Expand and extend

Microorganisms are a large group of organisms including bacteria, viruses, fungi and some small protozoa. They are small in size but closely related to human life.

Microorganisms are closely related to human production and life. Many foods, industrial products, and medicines are produced by microorganisms; microorganisms also play an important role in mineral exploration and mining, waste treatment and other fields.

How to make PPT bigger, part three: summary of this lesson

Two convex lenses combine to make the image of an object appear larger. The invention of the microscope broadened the field of observation and brought humans into a microscopic world.

How to enlarge the PPT, Part 4: Training in this lesson

1. Fill in the blanks

1. ( ) is closely related to human production and life.

2. In order to see smaller objects, people developed ( ) and ( ).

3. The basic principle of ( ) is based on the tunneling effect and three-dimensional scanning of quantum mechanics.

2. Connecting questions

Yuan Longping was the first to discover and propose the name "cell"

Leeuwen Hooke used microscopic technology to improve rice and create hybrid rice

Robert Hooke designed and built vision-enhancing glasses

Bacon made the first microscope with a metal structure that could magnify 300 times

How to make PPT bigger, Part 5: Homework

After returning home, use a homemade microscope to observe things at home.

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"Tiny World and Us" Tiny World PPT download:

"Tiny World and Us" Tiny World PPT Download Part One: Review and Summary How have human observation tools developed from ancient times to the present? How do people expand their observation horizons? ... ... ... Tiny World and Us PPT, Part 2...

"Tiny World and Us" Tiny World PPT:

"Tiny World and Us" Tiny World PPT Part One Content: Review and Summary Review the learning content of this unit, think about how human observation tools have developed from ancient times to the present, and how people's observation horizons have expanded. Let's talk about two relationship between them. ..

"Use a microscope to observe the living world around you (3)" Micro World PPT teaching courseware:

"Observe the living world around you with a microscope (3)" Micro World PPT teaching courseware Part One: Questions before class 1. Move the film to the left, where will the objects under the microscope move? Move to the right 2. What does the word above look like when placed under a microscope? 3.How to make foreign...

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Update Time: 2024-11-20

This template belongs to science courseware Science Edition for Sixth Grade Science Volume 2 industry PPT template

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