"Knowledge of Kilometers" Measurement PPT download

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"Knowledge of Kilometers" Measurement PPT download

Part 1: Introduction to the problem

How are taxi prices in Hefei calculated?

Starting price: 8.00 yuan / 9.00 yuan

(2.5km)

Unit price: 1.40 yuan (1.60 yuan)/km

To measure relatively long distances, the unit is usually kilometers (km). "Kilometer" is also called "kilometer".

How long is one thousand meters?

Knowledge of Kilometers PPT, Part 2: Understanding of Kilometers

Explanation of knowledge points

1. Explore new knowledge

How many laps is 1000 meters?

A sports ground track is usually 400 meters long.

2 laps is 800 meters and half a lap is 200 meters, so 2 and a half laps is 1000 meters.

Yes, 1000 meters is expressed in larger units as 1 kilometer.

2. Application of knowledge

1. Fill in the appropriate unit in ( ).

The distance from Beijing to Tianjin is about 100 ( )

The math textbook is about 5 ( ) thick

The school runway is 200 ( )

Approximately 15 ( ) for 3 hours for adults

2. How long does it take to walk 1 kilometer? Connect travel modes and corresponding times.

3. The distance from Xiaowei’s house to grandma’s house is about 1 kilometer. Xiaowei has already walked 400 meters. How many more meters will she have to walk?

4. Use a colored pen to draw two places with a distance of 1 kilometer along the line.

The distance from the bookstore to the library is 1000 meters, 1000 meters = 1 kilometer.

The distance from the museum to the library and then to the planetarium is 530 + 470 = 1000 (meters), 1000 meters = 1 kilometer.

Knowledge of kilometers PPT, the third part: unit conversion of kilometers and meters

Explanation of knowledge points

1. Explore new knowledge

3 kilometers = ( ) meters, what do you think?

I thought so:

1 kilometer is 1000 meters,

3 kilometers is three 1000 meters.

3 kilometers = 3000 meters

5000 meters = ( ) kilometers, what do you think?

I think so:

1000 meters is 1 kilometer,

There are five 1000 meters in 5000 meters.

5000 meters = 5 kilometers

2. Application of knowledge

1. Do it.

2. Fill in the blanks.

300 centimeters = ( ) meters

4 kilometers = ( ) meters

700 meters + 300 meters = ( ) kilometers

3 kilometers - 1 kilometers = ( ) meters

3. Xiaoshuai ran 5 laps. How many kilometers did he run in total?

400×5=2000 (meters)

2000 meters = 2 kilometers

Answer: He ran a total of 2 kilometers.

Knowledge of Kilometers PPT, Part 4: Solving Problems (Example 6)

Explanation of knowledge points

1. Explore new knowledge

Estimate how far it is from your home to school.

I walk about 200 steps for 100 meters, and I walk 600 steps from home to school, which is about 300 meters.

It takes me about 2 minutes to walk 100 meters. It takes me about 10 minutes to walk from home to school, which is about 500 meters.

The distance is longer, what should I do?

Estimate how far it is from your home to school.

I took the bus at 3 stops, each stop was about 500 meters away, about 1500 meters away.

2. Application of knowledge

1. Teacher Wang walks 20 minutes from home to school every day. He walks about 100 meters per minute. How far is Teacher Wang's home from the school?

100×20=2000 (meters)

2000 meters = 2 kilometers

Answer: Teacher Wang’s home is about 2 kilometers away from the school.

2. Lili walks 100 meters, which is about 200 steps. She walks 1,800 steps from home to school. So how many meters is it from her home to school?

There are 9 200s in 1800

100×9=900 (meters)

Answer: It’s about 900 meters from her home to the school.

3. Mom took Xiao Ming to take a long-distance bus to see his grandma, and they had to walk 308 kilometers on the way. They set off at 8 a.m. and the car travels an average of 80 kilometers per hour. Can they arrive at 12 noon?

12 o'clock - 8 o'clock = 4 o'clock

80×4=320 (km)

320 kilometers>308 kilometers

Answer: We can arrive at 12 noon.

Thousand-meter understanding PPT, part five: conclusion summary

1 meter = ( ) decimeter

1 decimeter = ( ) centimeter

1 cm = ( ) millimeter

1 meter = ( ) centimeter

1 km = ( ) m

Keywords: Free download of PPT courseware for third-grade mathematics from the People's Education Press, PPT download on knowledge of kilometers, PPT download on measurement, .PPT format;

For more information about the "Understanding of Measuring Kilometers" PPT courseware, please click on the PPT tag of "Understanding of Measuring Kilometers".

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Update Time: 2024-10-05

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