PRSENTED BY:- PRAMILA KUMARI KV. RAMGARH CANTT.

Do you want to play games or sing a song?

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There are three hands in a clock  1. HOUR HAND (The shortest hand of the clock)  2. MINUTE HAND (The longest hand of the clock)  3. SECOND HAND (The hand moves continuously)

 60 digits completed by Second hand= Minute hand complete one digit It means 60 second = 1 Minute 60 digits completed by Minute hand = Hour hand complete one digit. It means 60 min = 1 Hour

THERE ARE TWO TYPES OF CLOCKS  12 - HOURCLOCK  IN 12-HOUR CLOCK WE START COUNTING FROM 1 TO 12 AND AFTER 12 AGAIN WE START 1 TO 12  IN 12-HOUR CLOCK TIME PERIOD IS 1-12 HR  – HOUR CLOCK  IN 24-HOUR CLOCK WE COUNT FROM 1 TO 24.  IN 24 –HOUR CLOCK TIME PERIOD IS 1-24 HRS

12- HOUR CLOCK IS USED  AT HOME  AT SCHOOL  AT OFFICE  AT HOSPITAL

24 HOUR CLOCK IS USED  AT RAILWAY STATION  AT AIRPORT  AT READING MILITARY TIME

HOME WORK 1. HOW MANY SEC. IN 1 MIN? 2. HOW MANY MIN. IN HOUR?

THANKS to all of you !