"Understanding liters and milliliters" liters and milliliters PPT courseware

Description

"Understanding liters and milliliters" liters and milliliters PPT courseware

teaching objectives

1. Understand the concept of capacity in practical operation activities, recognize "liter" and "ml", and be able to use letters to express "liter" and "ml".

2. Recognize measuring cups and measuring cylinders as measuring tools, and be able to read the scales on measuring cups and measuring cylinders.

3. Gain a pleasant learning experience and mathematical activity experience in experimental activities.

Compare: Which of the two cups below holds more water?

method one

1. Fill cup b with water and pour it into cup a...

Method Two

2. Fill both cups with water and pour it into two cups of the same size.

Conclusion: Cup a holds more water.

The two cups are different in size and hold different amounts of water. The amount of water the cup holds is the capacity of the cup.

Compare: Which bottle below holds more drinks?

Tell me how it can be measured?

Besides pouring two bottles of drinks into two glasses of the same size, think about it, is there any other way?

Get to know measuring cylinders and measuring cups.

What is the difference between a measuring cylinder and a measuring cup?

Difference: The diameter of the measuring cylinder is uniform up and down, so the scale is uniform; the diameter of the measuring cup is small at the bottom and large at the top, so the scale is sparse at the bottom and dense at the top.

Understand liters and milliliters.

Measure liquids, such as gasoline, beverages, potions, etc., in liters and milliliters. Liters are represented by the letter "L" and milliliters are represented by the letter "mL".

In conclusion

1. The amount of liquid that can be held in a container is the capacity of the container.

2. Measure the amount of liquid in liters and milliliters. Liters are represented by the letter "L" and milliliters are represented by the letter "mL".

give it a try

Measure the capacity of your own water glass and calculate approximately how many glasses of water you should drink per day.

practice

1. How to make the two bottles have the same amount of water?

2. Read it.

3. Look at the picture and fill in the blanks.

4. Use your own water cup to measure the contents of four different containers at home.

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For more information about the PPT courseware "Liters and Milliliters Understanding Liters and Milliliters", please click the Liter and Milliliters ppt Understanding Liters and Milliliters ppt tab.

"Understanding Liters and Milliliters" Liters and Milliliters PPT Courseware 2:

"Understanding Liters and Milliliters" Liters and Milliliters PPT Courseware 2 Key Points: Understand liters and milliliters, and be able to read the scales on measuring cups and measuring cylinders. Difficulty: Understanding the meaning of capacity. Understand Capacity The items above can hold other objects. If the objects above are used to hold water, they can hold...

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Update Time: 2024-11-16

This template belongs to Mathematics courseware Hebei Education Edition Fourth Grade Mathematics Volume 1 industry PPT template

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