| Category | Format | Size |
|---|---|---|
| Jiangsu Education Edition Sixth Grade Mathematics Volume 2 | pptx | 6 MB |
"How Tall is the Big Tree" Proportional and Inverse Proportional PPT Courseware
Description
"How Tall is the Big Tree" Proportional and Inverse Proportional PPT Courseware
measure, record
Place several bamboo poles of the same length upright in the sun.
1. First measure the length of the pole
2. Place it upright again and measure the shadow length of each rod.
If bamboo poles of the same length are measured at the same place at the same time, the shadow lengths will be the same, and the ratio of the pole length to the shadow length will also be the same.
According to "pole length: shadow length = ratio", it can be used to calculate the height or shadow length of other objects in the same place at the same time. This rule can be used to measure the height of taller objects.
method:
1. Measure the length and shadow length of a bamboo pole and find the ratio of pole length to shadow length.
2. Then measure the shadow length of the tree at the same time and find its actual height.
After class, you can use the knowledge you learned in this class to try to measure the height of your own house. Write a short mathematical paper about your findings, gains, and feelings. Move your little hands and you will gain something!
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For more information about the PPT courseware "How tall is a big tree in direct proportion and inverse proportion", please click on the PPT tag of "How tall is a big tree in direct proportion and inverse proportion PPT".
"How Tall is the Big Tree" Direct Proportion and Inverse Proportion PPT Courseware 2:
"How Tall is the Big Tree" PPT Courseware of Direct Proportion and Inverse Proportion 2 Think about it: What is the ratio of the length of the bamboo pole to the length of the shadow measured at the same place and at the same time? 1012=5/6 5060=5/6 2024=5/6 Summary: The bamboo pole length and shadow length measured at the same place and at the same time...
File Info
Update Time: 2024-07-06
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