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"Volume and Capacity" Cuboid (2) PPT download
Part One: Scenario Introduction
Have you heard the story of the crow drinking water? A crow throws a pebble into a bottle and the water level rises. As a result, the crow drinks the water. Do you know why?
Because the stone occupies a certain space.
In fact, objects in life all occupy a certain amount of space. This is what we are going to learn today.
Volume and Volume PPT, Part 2: Exploring New Knowledge
(1) Perceive space through physical objects.
1. What items take up a lot of space in the classroom? What items take up less space?
2. Among common containers, which containers hold the most things? Which containers hold less stuff?
(2) Understand the volume of objects.
Observe, which one takes up more space, potatoes or sweet potatoes?
Take two beakers of the same size and pour the same amount of water into them.
Place potatoes and sweet potatoes in two beakers.
From the experiment, we found that potatoes and sweet potatoes both occupy a certain amount of space, and the sizes of the spaces they occupy are different.
The amount of space an object occupies is the volume of the object.
(3) Understanding of volume.
Which of these two beakers holds more water?
Ask your classmates to design an experiment to test your guess.
test:
Fill one cup with water, and then pour the water into the other cup. If the other cup is not full, fill the other cup with more water.
If the other cup does not fit, then this cup holds more water. If the other cup is exactly full, then both cups hold the same amount of water.
What did you find based on your experiments?
Through experiments, it was found that containers such as cups can hold other objects, and different containers can hold different objects in different volumes.
The volume of objects that a container can hold is called the volume of the container.
Volume and Volume PPT, Part 3: Consolidation Practice
1. A ball of plasticine, Naughty molded it into a rectangle for the first time, and then molded it into a ball for the second time. Which of the two pinched objects is larger? Why?
Answer: The two objects have the same size. The size is only related to the size of the space it occupies, not its shape.
2. Use the same number of coins to form the following shapes. Which one is larger? Why?
3. Naughty and Xiaoxiao each have the same bottle of drinks. Naughty poured 3 cups, while Xiaoxiao only poured 2 cups. Do you think it is possible? Tell us what you think.
Answer: It's possible, as long as the cups are different sizes.
4. Count, think about it, and talk to your partner, how many such small cubes can be packed in the rectangular box in the picture on the right?
3x4x3=36 (pieces)
Answer: A cuboid box can hold 36 such small cubes.
Volume and Volume PPT, Part 4: Class Summary
What knowledge did you learn from this lesson? What’s the catch?
The size of the space occupied by an object is called its volume.
The volume of objects that a container can hold is called the volume of the container.
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"Volume and Volume" Cuboid (2) PPT teaching courseware:
"Volume and Volume" Cuboid (2) PPT Teaching Courseware Part One: Learning Objectives 1. Through specific experimental activities, understand the actual meaning of volume and volume, and initially understand the concepts of volume and capacity. 2. Feel the size of the object and further develop the space..
"Volume and Volume" Cuboid (2) PPT:
"Volume and Volume" Cuboid (2) PPT Part One Content: Learning Objectives 1. Through specific operations, understand the meaning of volume and volume, and initially understand the concepts of volume and volume. (Key points) 2. Understand the relationship and difference between volume and volume. (Difficulty) Love...
"Volume and Volume" Cuboid PPT Courseware 5:
"Volume and Capacity" Cuboid PPT Courseware 5 Volume The size of the space occupied by an object is called the volume of the object. Volume The volume that a container can hold an object in is called the volume of the container. Size and Capacity 1. When traveling, I need to carry ( ) a small camera. 2. When mountain climbing,...