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Category | Format | Size |
---|---|---|
People's Education Press Mathematics Volume 2 for Sixth Grade | pptx | 6 MB |
Description
"Problem Solving" Cylinder and Cone PPT Courseware
1. Explore new knowledge
In a bottle with an inner diameter of 8cm, the height of the water is 7cm. Tighten the cap and turn it upside down. The water-free part is cylindrical and the height is 18cm. What is the volume of this bottle?
Please read it carefully and understand what this question means?
Please think about it carefully, how can you calculate the volume of the bottle?
This bottle is not a complete cylinder and the volume cannot be calculated directly.
2. Application of knowledge
(1) Do it
A bottle of mineral water was filled. Xiao Ming drank some. He tightened the cap and turned it upside down. The height of the water-free part was 10cm and the inner diameter was 6cm. How much water did Xiao Ming drink?
Please think carefully, how to calculate the volume of water Xiao Ming drank?
(2) Solve problems
1. The school needs to build a fence between the teaching area and the playground. It was originally planned to use 35m³ of earth and stone. Later, an additional moon door with a thickness of 25cm was opened, which reduced the amount of earth and stone. How many cubic meters of earth and stone are used now?
Please think about it carefully. How many cubic meters of earth and stone are used now? What do you want first?
2. Two cylinders with equal base areas, one with a height of 4.5dm and a volume of 81dm. The height of the other one is 3dm. What is its volume?
What can be found by knowing the height and volume of a cylinder?
I found that the above 4 graphics. When the length is used as the circumference of the base of the cylinder, the closer the length and width of the rectangle are, the smaller the volume of the rolled cylinder will be.
Please think about it, what kind of cylinder will the above four figures be rolled into when the length is used as the circumference of the base of the cylinder? Please give it a try.
3. Assign homework
Homework: Exercise 5 on page 29, questions 8, 11, and 13.
Keywords: Cylinder and Cone courseware, New People's Education Edition sixth grade mathematics PPT courseware, Volume 2, sixth grade mathematics slide courseware download, Cylinder and Cone PPT courseware download, .ppt format
For more information about the "Cylinder and Cone" PPT courseware, please click on the Cylinder and Cone ppt tab.
"Volume of a Cone" Cylinder and Cone PPT Courseware 8:
"Volume of a Cone" Cylinder and Cone PPT Courseware 8 The volume V of a cone is equal to one-third of the volume of a cylinder with the same base and height as it. 1. Fill in the blanks: 1. The volume of a cone = ( ), represented by letters ( ). 2. The volume of a cylinder and the volume of its cone ( )..
"Volume of a Cone" Cylinder and Cone PPT Courseware 7:
"Volume of a Cone" Cylinder and Cone PPT Courseware 7 Teaching Objectives: 1. Preliminarily master the calculation formula of the volume of a cone, and be able to use the formula to calculate correctly. 2. Through the derivation of the cone volume formula, students can develop their hands-on operation and group collaboration abilities. Oral arithmetic..
"Volume of a Cone" Cylinder and Cone PPT Courseware 6:
"Volume of a Cone" Cylinder and Cone PPT Courseware 6 Teaching Objectives: 1. Through experiments, explore and master the calculation method of the volume of a cone. 2. Develop hands-on skills and inductive reasoning skills through processes such as observation, conjecture, and experimentation. 3. Cultivate independent exploration and cooperation..
File Info
Update Time: 2024-10-08
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