"Understanding of Seconds" PPT teaching courseware for hours, minutes and seconds

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"Understanding of Seconds" PPT teaching courseware for hours, minutes and seconds

Part One: Learning Objectives

1. With the help of existing life experience, communicate and cooperate in familiar life situations, independently understand the new time unit "second", and know that "1 minute = 60 seconds".

2. Initially establish the time concept of 1 second, several seconds, and 1 minute.

Learn important and difficult points

Focus: initially establish the time concept of 1 second, several seconds, and 1 minute.

Difficulty: Experience the connection between time units and life.

Understanding PPT in seconds, part 2: review

fill in the blank.

(1) The minute hand moves from 12 to 6 for ( ) minutes.

(2) The hour hand moves from 12 to 6, and goes ( ) hours.

(3) The minute hand starts from 12 and goes around in a circle, and then goes back to 12, and it goes ( ) minutes.

How long have you known each other?

(1) When the hour hand moves 1 large division, it is 1 hour.

(2) The minute hand moves 1 small square is 1 point, moves 1 large square is 5 points, and moves 1 circle is 60 points, that is, 60 points.

Understanding PPT in seconds, the third part: interpretation of example questions

To measure a very short time, seconds are commonly used. A second is a smaller unit of time.

The longest and thinnest hand on the clock is the second hand.

The time it takes for the second hand to move one small division is 1 second.

The time to move 1 large square is 5 seconds.

Observe, if the second hand moves once, how many cells does the minute hand move? what have you found?

The second hand moves one circle and the minute hand moves one small division.

Some electronic watches can display seconds.

This is a stopwatch, typically used in sports to record time in seconds.

Understanding PPT in seconds, the fourth part: summary

Understand the time unit "second"

The longest and thinnest hand on the clock is the second hand.

The time it takes for the second hand to move one small division is 1 second.

Explore the relationship between minutes and seconds

The second hand moves once, and the minute hand moves 1 small division, 1 minute = 60 seconds.

Get to know PPT in seconds, part five: quiz in class

1. Fill in the appropriate time unit in ( ).

Sleep about 9 ( ) per day

It takes about 20 ( ) to tie a red scarf

Cooking rice takes about 25 ( )

Try what you can do in 1 minute and record the results.

I jump rope 120 times in 1 minute.

I can write 20 words in 1 minute.

My pulse is about 75 beats a minute.

Understanding PPT in seconds, part six: homework

1. Select from the after-class exercises;

2. Complete the exercises in this lesson in the exercise book.

Keywords: Free download of PPT courseware for the first volume of third grade mathematics from the People's Education Press, PPT download of understanding in seconds, PPT download of hours, minutes and seconds, .PPT format;

For more information about the "Knowledge of Hours, Minutes and Seconds" PPT courseware, please click on the "Knowledge of Hours, Minutes and Seconds" PPT tag.

"Understanding of Seconds" PPT download of hours, minutes and seconds:

"Understanding of Seconds" Hours, Minutes and Seconds PPT Download Part One: Independent Exploration To measure a very short time, seconds are commonly used. A second is a smaller unit of time. Second Hand The time it takes for the second hand to move one small division is 1 second. Observe, the second hand moves once, how many small divisions the minute hand moves,...

"Understanding of Seconds" PPT courseware of hours, minutes and seconds:

"Understanding of Seconds" PPT courseware on hours, minutes and seconds Part One: Learning Objectives 1. Understand the unit of time, the second, know the relationship between minutes and seconds, and initially establish the concept of time in seconds. 2. Through observation and operation, experience the value of time in life, cultivate observance, cherish...

"Understanding of Seconds" Hours, Minutes and Seconds PPT:

"Understanding of Seconds" PPT on Hours, Minutes and Seconds Part One: Learning Objectives 1. Understand the unit of time, the second, know that 1 minute = 60 seconds, and understand the application of seconds in life. Through observation, experience and other activities, students can initially establish the time concept of 1 second, several seconds and 1 minute. 2..

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Update Time: 2024-11-22

This template belongs to Mathematics courseware People's Education Press Third Grade Mathematics Volume 1 industry PPT template

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