"Xiao Ming's Day" Understanding Clocks PPT Teaching Courseware

Description

"Xiao Ming's Day" Understanding Clocks PPT Teaching Courseware

Part One: Situation Import

guessing game

It can walk without legs, it can speak without mouth,

it will tell you,

When to get up, when to go to bed.

(Pick some daily necessities)

Xiao Ming’s day PPT, part 2: problem introduction

Knowledge point 1: Understanding the clock face

The thinnest and longest is the second hand

The thin and long one is the minute hand

The short and thick one is the hour hand

Knowledge point 2: Read the whole hour

①The minute hand points to 12 which is the hour

②The hour hand points to 7 to indicate 7 hours

Knowledge point 3: Read for half an hour

①The minute hand points to 6 which is half hour

②The hour hand points to the middle between 9 and 10, which is 9:30

Knowledge point 4: Application of full time and half time

6:30

①The hour hand points between 5 and 6

②The minute hand points to 6

9 o'clock

①The minute hand points to 12

②The hour hand points to 9

Xiao Ming’s day PPT, the third part: knowledge summary

The hour and minute hands point to "12", and whatever the hour hand points to is what time it is. The half-hour and minute hands point to "6", the hour hand is in the middle of the two numbers, and the hour just past is what time and half is.

The origin of clocks

In ancient times, people knew to use day and night to express time, but it was too rough. Later, people used the shadow of the sun to determine time. That is to say, they first used shadow clocks to measure time. However, because shadow clocks are difficult to tell the specific time, So the smart ancients used sundials to determine the time, but they couldn't be used when clouds blocked the sun's light. Later, humans invented the copper kettle hourglass, which was more accurate than using sundials to determine time, so people began to use copper The kettle dripped, but it was too difficult to use. Later, people invented clocks, and timekeeping became more and more accurate.

Keywords: Beijing Normal University edition first grade mathematics PPT courseware free download, Xiao Ming’s day PPT download, understanding clocks PPT download, .PPT format;

For more information about the PPT courseware "Knowing Xiao Ming's Day in Clocks", please click the "Knowing Clocks PPT Xiao Ming's Day in PPT" tag.

"Xiao Ming's Day" Understanding Clocks PPT Download:

"Xiao Ming's Day" Understanding Clocks PPT Download Part One: Classroom Introduction 1. Understand the structure of the clock and know that the short hand on the clock is called the hour hand and the long hand is called the minute hand. 2. Combined with life experience, learn to read the full hour and half hour on the clock, and be able to accurately read the full hour and half hour..

"Xiao Ming's Day" Understanding Clocks PPT:

"Xiao Ming's Day" Understanding Clocks PPT Part One Content: Exciting introduction, understanding clock faces, knowledge explanation, talk about it, recognize it. 7:00 8:00 9:30 12:00 4:00 8:30 I say you dial. Get up at 6:30. Go to bed at 9 o'clock. ... ... ... A day in the life of Xiao Ming PP...

"Xiao Ming's Day" Understanding Clocks PPT Courseware 2:

"Xiao Ming's Day" Understanding Clocks PPT Courseware 2 This courseware teaches students to understand clocks through Xiao Ming's day and consolidates knowledge points through exercises. According to the shadow of the tree in the picture, select the approximate time and continue. 12:00 noon 8:00 am 10:00 am ..

File Info

Update Time: 2024-11-14

This template belongs to Mathematics courseware Beijing Normal University Edition First Grade Mathematics Volume 1 industry PPT template

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