Class 4 Maths - BIHAR
Ticking Clocks and Turning Calendar
The chapter Ticking Clocks and Turning Calendar in Class 4 Mathematics helps young learners master the essential life skills of reading time and understanding the calendar. Students explore how to read clocks using hours, minutes, and seconds hands, tell time in terms of 'past' and 'to', and convert between 12-hour and 24-hour clock formats. Additionally, the chapter dives into reading calendars to identify dates, days, months, and leap years. Mastering these time-management concepts is crucial for scoring well in Bihar (BSEB) school exams and builds a strong foundation for practical everyday scheduling.
Start Learning FreeKey Concepts
Reading the Clock
A standard clock has a short hour hand and a long minute hand. Each number on the clock face represents 5 minutes when counted by the minute hand.
AM and PM
AM stands for Ante Meridiem, covering the time from midnight to noon, while PM stands for Post Meridiem, covering from noon to midnight.
Days and Months in a Year
A normal year has 365 days spread across 12 months, with 7 days in a week starting from Sunday and ending on Saturday.
Leap Year
Every 4 years, a leap year occurs which has 366 days because February gets an extra day, making it 29 days long instead of 28.
Time Conversions
Understanding that 1 hour equals 60 minutes, 1 minute equals 60 seconds, and 1 week equals 7 days to solve conversion word problems.
Important Formulas
Board Exam Info
In the Bihar (BSEB) Class 4 Mathematics examinations, this chapter typically carries around 6 to 8 marks. Common question types include reading time from clock diagrams, converting hours into minutes, finding specific dates on a calendar, and solving simple word problems related to time duration.
Frequently Asked Questions
How do I know if a year is a leap year?
Divide the year number by 4. If it divides completely without leaving any remainder, then it is a leap year.
Why does the minute hand move faster than the hour hand?
The minute hand completes a full round in 1 hour, whereas the hour hand takes 12 hours to complete one full round on the clock.
How many days are there in the months of July and August?
Both July and August have 31 days each. You can check this using the knuckle trick on your hands.
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