| Category | Format | Size |
|---|---|---|
| People's Education Press Mathematics Volume 2 for Sixth Grade | pptx | 6 MB |
"Application of Proportion" Proportion PPT Courseware 3
Description
"Application of Proportion" Proportion PPT Courseware 3
1. Review old knowledge
(1) Fill in
1. A distance of 2 centimeters on the picture represents an actual distance of 10 kilometers. The scale of this picture is ( ).
2. On a drawing, use a 6 cm line segment to represent 3 mm. The scale of this drawing is ( ).
(2) Calculate the actual distance based on the scale
If you know the actual distance, how can you find the distance on the map based on the scale?
2. Explore new knowledge
(1) Calculate the distance on the map according to the scale bar
Xiao Ming's house is due west of the school, 200 meters away from the school; Xiao Liang's house is due east of Xiao Ming's house, 400 meters away from Xiao Ming's house; Xiao Hong's house is due north of the school, 250 meters away from the school. Draw the location plan of their three homes and the school in the picture below. (Scale 1:10000)
(2) Draw a floor plan
Can you draw their locations in the picture?
3. Application of knowledge
The school wants to build a rectangular playground with a length of 80m and a width of 60m. Please draw the floor plan of the playground in the picture on the right. (Scale 1:2000)
The railway line from Lanzhou to Urumqi is approximately 1,900km long. What is the length in centimeters between two places on the map?
He obviously measured the circumference of a circular flower bed in the park to be 157 meters. He wants to draw it on the plan and asks you to help him draw it. (The scale is determined by the size of the paper and the size of the compass.)
4. Assign homework
Homework: Exercise 10 on page 57, questions 8 and 9; Exercise 10 on page 58, questions 10, 11 and 12.
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For more information about the "Application of Proportions and Proportions" PPT courseware, please click on the "Proportions ppt Application of Proportions ppt" tab.
"Application Exercises of Proportion" PPT courseware of direct proportion and inverse proportion:
"Application Exercises of Proportion" PPT Courseware of Direct Proportion and Inverse Proportion Teaching Objectives 1. Through review, students can master the knowledge of proportion more skillfully and be able to solve some practical problems. 2. Cultivate students’ interest and ability to summarize and organize knowledge independently. ... ... ...
"Application of Proportion" Proportion PPT Courseware 7:
"Application of Proportion" Proportion PPT Courseware 7 1. What is proportion? An expression that expresses two equal ratios is called a proportion. 2. What is the basic property of proportion? In proportion, the product of two external terms is equal to the product of two internal terms. 3. What is the solution to proportion? Find the proportion of...
"Application of Proportion" Proportion PPT Courseware 6:
"Application of Proportion" Proportion PPT Courseware 6 1. Review old knowledge (1) Judgment Determine whether two related quantities are proportional? In what proportion? Give reasons. (1) The total distance, speed and time are certain. ( ) (2) The total number of pages is certain, the number of pages read and the remaining...
File Info
Update Time: 2024-06-28
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