Beijing Normal University Sixth Grade Mathematics Volume 1

Description

"Understanding of Circles" Circle PPT Courseware 4

practice

1. When people get together, they naturally form a circle. Why? Think about it and talk about it.

2. Draw a circle with a radius of 1.5cm, and mark its center, radius and diameter with the letters o, r, d.

Cooperate and do it, think about it

Use cardboard to make the shapes below to replace the wheels.

Work in groups and roll the cardboard "wheel" along the edge of the ruler to trace the mark left by point A.

People have known Yuan for a long time. There is such a record in the ancient Chinese classic "Mo Jing": A circle has one center and the same length.

Naughty has designed 4 types of bicycle wheels. What would it be like to ride such a bicycle? Make the shape below out of cardboard, try rolling it, and talk to your peers.

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For more information about the "Understanding Circles" PPT courseware, please click the "Understanding Circles ppt" circle ppt tag.

"Understanding of Circles" Circle and Sector PPT Courseware:

"Understanding of Circles" Circle and Sector PPT Courseware Teaching Objectives 1. Combine with specific objects and experience the process of understanding circles. 2. Understand the characteristics of a circle and the names of its parts, and understand the relationship between diameter and radius in the same circle. 3. Through observation, operation, imagination and other activities, discover...

"Understanding of Circles" Circle and Sector Flash Animation Courseware:

"Understanding of Circles" Flash animation courseware for circles and sectors. This courseware is a teaching material for the first unit of the sixth grade mathematics volume of the Hebei Education Edition. "Understanding Circles" Flash animation courseware for circles. The content is vivid and vivid. Please download it! Keywords: Circle and sector teaching courseware, circle recognition...

"Understanding of Circles" Circle PPT Courseware 7:

"Understanding of Circles" Circle PPT Courseware 7 Discussion: 1. Why are the wheels made round and where should the axles be installed? 2. If the wheels are made square or triangular, how will we feel when we sit on them? Requirements for group cooperation and exploration: (1) Four people per group..

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Update Time: 2024-09-22

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