"Understanding of Cylinders and Cones" Cylinders and Cones PPT Courseware 2

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"Understanding of Cylinders and Cones" Cylinders and Cones PPT Courseware 2

The upper and lower surfaces of the cylinder are called the cylinder ( ), the curved surface surrounding the cylinder is called the cylinder ( ), and the distance between the two bottom surfaces of the cylinder is called the cylinder ( ).

Tell us which of the following objects have the shape of a cylinder and which of the objects below have the shape of a cone.

What shape do you see when you look at the cylinder from the front, top, and side? What about looking at a cone from these three sides? Take a look first, then connect.

(1) Make small flags of rectangle, right triangle and semicircle, and quickly rotate the flagpole (as shown below). Observe and imagine what shapes the flag can take when rotated once.

(2) Design the shape of the flag yourself, rotate the stick, observe and imagine the shape of the flag when it rotates once, and communicate in the group.

think:

1. What do the side expanded views of cylinders and cones look like?

2. What is the relationship between the sides and the bottom?

Look closely at the cylinder. What do you notice?

1. How many faces is a cylinder surrounded by?

2. Touch the upper and lower sides with your hands. What are the characteristics? What is the relationship between the area sizes of the upper and lower faces? How did you know?

3. Touch the side with both hands and roll it. What do you find?

4. What else did you discover?

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For more information about the "Cylinders and Cones Understanding Cylinders and Cones" PPT courseware, please click the Cylinders and Cones ppt Understanding Cylinders and Cones ppt tag.

"Understanding of Cylinders and Cones" Cylinders and Cones PPT Courseware 3:

"Understanding of Cylinders and Cones" Cylinder and Cone PPT Courseware 3 1. How many faces is a cylinder surrounded by? 2. Touch the upper and lower sides with your hands. What are the characteristics? What is the relationship between the area sizes of the upper and lower faces? How did you know? 3. Touch the sides with both hands and roll...

"Understanding of Cylinders and Cones" PPT courseware of cylinders and cones:

"Understanding of Cylinders and Cones" PPT Courseware of Cylinders and Cones Ask students to take out the cylinders they have prepared, touch them, look at them, compare them, and tell them what you found? Communicate your findings with your classmates. Observe, think and discuss carefully: ① Cylindrical...

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Update Time: 2024-11-16

This template belongs to Mathematics courseware Jiangsu Education Edition Sixth Grade Mathematics Volume 2 industry PPT template

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