| Category | Format | Size |
|---|---|---|
| Western Normal University Edition Sixth Grade Mathematics Volume 2 | pptx | 6 MB |
"Proportional Quantities" Direct Proportional and Inverse Proportional PPT Courseware 2
Description
"Proportional Quantities" Direct Proportional and Inverse Proportional PPT Courseware 2
teaching objectives
1. Help students understand the meaning of direct proportion through observation, comparison, judgment, induction and other methods.
2. Train students to analyze problems from the perspective of interconnectedness and development of things, and be able to judge whether two quantities are directly proportional based on the meaning of proportion.
3. Use it to express the relationship between variables and initially penetrate the idea of functions.
How to find the speed when the distance and time are known?
Speed = distance ÷ time
How to find the unit price if the total price and quantity are known?
Unit price = total price ÷ quantity
How to calculate work efficiency when the total amount of work and working hours are known?
Work efficiency = total amount of work ÷ working time
Do it
Decide whether the two quantities in each question below are directly proportional and explain why.
(1) The unit price of apples is certain, the quantity and total price of apples purchased.
The quantity of apples and the total price are two related quantities, because the total price/quantity = unit price, so the quantity of apples purchased is directly proportional to the total price.
(2) The ship travels at a certain speed, the distance and time it travels.
The distance traveled and time are two related quantities, because distance/time = speed, so the distance traveled is directly proportional to time.
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For more information about the PPT courseware "Quantities in direct proportion and inverse proportion", please click the Quantities in direct proportion and inverse proportion ppt tab.
"Proportional Quantities" Direct Proportional and Inverse Proportional PPT Courseware:
"Proportional Quantities" Direct Proportional and Inverse Proportional PPT Courseware The volume changes as the height changes. We call two quantities like this related quantities. As the height increases, the volume expands. The height decreases and the volume shrinks..
"Understanding Proportional Quantities" Direct Proportional and Inverse Proportional PPT Courseware 2:
"Understanding Proportional Quantities" Direct Proportional and Inverse Proportional PPT Courseware 2 State the relationship between each set of quantities below (1) Speed time = distance (2) Unit price quantity = total price (3) Work efficiency Working time = Total amount of work. .. ... ... (1) Fill in the table above and tell us...
"Understanding Proportional Quantities" PPT courseware of direct proportion and inverse proportion:
"Understanding Proportional Quantities" Direct Proportional and Inverse Proportional PPT Courseware Tests You 1. Can all two related quantities be directly proportional? 2. Are all two quantities that are proportional to each other related quantities? Practice: Determine whether the following two quantities are directly proportional..
File Info
Update Time: 2024-07-06
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