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"Conversion of Volume Units" Cuboid (2) PPT teaching courseware
Part One: Learning Objectives
1. Combined with practical activities, understand the volume and the rate of progress between volume units, and be able to convert between volumes and volume units.
2. Develop spatial concepts through observation and operation.
3. Students want to explore problems and are willing to cooperate and communicate with peers; they are willing to use the knowledge they have learned to solve relevant practical problems in life.
【Key Points】Be able to perform conversions between volume and volume units during observation and operation, and be willing to use the knowledge learned to solve relevant practical problems in life.
[Difficulty] Conversion between volume and volume units will be performed during observation and operation.
Volume unit conversion PPT, part 2: exploration of new knowledge
A cuboid has a length of 0.5 meters, a width of 2 decimeters, and a height of 8 centimeters. What is its volume?
0.5 meters = 50 centimeters 2 decimeters = 20 centimeters
50 × 20 × 8 = 8000 (cubic centimeters)
0.5 meters = 5 decimeters 8 centimeters = 0.8 decimeters
5×2×0.8=80 (cubic decimeter)
2 decimeters = 0.2 meters 8 centimeters = 0.08 meters
0.5×0.2×0.08=0.008 (cubic meters)
How many small cubes with a volume of 1cm3 can be placed in a cube box with an edge length of 1dm? Think about it and fill it out.
1 can be placed in 10 rows, and each layer can hold exactly 10 rows, that is, 100 can be placed in each layer.
1dm=10cm, there are exactly 10 layers in the box.
This box can hold 1,000 small cubes.
Edge length 1 decimeter (10 cm)
V=1dm×1dm×1dm
V=10cm×10cm×10cm
1 cubic decimeter = 1000 cubic centimeters
Volume unit conversion PPT, Part 3: Classroom exercises
1. What is the volume of each of the following shapes? (The edge length of each small cube is 1cm)
6×1×1 9×2×2
=6×1 =18×2
=6(cm3) =36(cm3)
3.5m3＝（ )dm3 2800dm3＝（ )m3
720cm3＝( )dm3 1.2m3＝( )cm3
3600mL＝( )L 3L＝( )mL
0.5dm3＝( )mL 600mL＝( )L
Volume unit conversion PPT, Part 4 content: Class summary
1dm³＝1000cm³ 1m³＝1000dm³ 1L＝1000mL
1 meter 3 = 1000 decimeter³ 1 milliliter = 1 cubic centimeter
The progress rate between two adjacent volume units is 1000.
When a high-level unit becomes a low-level unit: the number will become larger, the number of high-level units × the advancement rate.
When a low-level unit becomes a high-level unit: the number will become smaller, and the number of low-level units ÷ the rate of advancement.
Volume unit conversion PPT, Part 5: Classwork
1. Judgment. (Draw √ for the right one and × for the wrong one)
1. 8 cubic meters is larger than 8 square meters. ( )
2. The volume of a piece of rubber is about 8 cubic decimeters. ( )
3. Two cuboids with equal base area and equal height have equal volumes. ( )
4. The volume of both cuboid and cube is equal to the base area times the height. ( )
5. If the length, width, and height of a cuboid are doubled, its volume will be doubled. ( )
2. Fill in the blanks.
8 meters³ = ( ) decimeter³ 4800 decimeter³ = ( ) meter³
920 centimeters³= ( ) decimeter³ 0.14 meters³ = ( ) centimeters³
36500 ml = ( ) liter 8.35 liter = ( ) ml
6600 milliliters = ( ) cubic centimeters
3. There is a bucket of mineral water with a total of 20 liters. Xiao Ming drinks 1250 ml of water every day. How many days will it take Xiao Ming to finish drinking this bucket of water?
20 liters = 20000 ml
20000÷1250=16(days)
Answer: Xiao Ming can drink this bucket of water in 16 days.
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"Conversion of Volume Units" Cuboid (2) PPT courseware download:
"Conversion of Volume Units" Cuboid (2) PPT Courseware Download Part One: Learning Objectives 1. Combined with practical activities, understand the volume and the rate of change between volume units, and be able to perform conversions between volume and volume units. 2. During the process of observation and operation, develop space...
"Conversion of Volume Units" Cuboid (2) PPT download:
"Conversion of Volume Units" Cuboid (2) PPT Download Part One: Review Import What are our commonly used units of length? What are the commonly used units of area? What are the commonly used units of volume? Meter, decimeter, centimeter; square meter, square decimeter, square centimeter..
"Conversion of Volume Units" Cuboid (2) PPT:
"Conversion of Volume Units" Cuboid (2) PPT Part One Content: Learning Objectives 1. Master volume and the rate of change between volume units, and be able to perform conversions between volume and volume units. (Key Points) 2. Understand the derivation that the rate of progress between adjacent volume units is 1000..