Class 4 Maths - WEST-BENGAL
Ticking Clocks and Turning Calendar
The chapter Ticking Clocks and Turning Calendar in West Bengal Board Class 4 Mathematics introduces young learners to the fundamental concepts of reading time and managing dates. Students learn how to read clock faces to tell time in hours, minutes, and seconds, understand the relationship between AM and PM, and convert between 12-hour and 24-hour formats. Additionally, the chapter explores the English calendar months, leap years, the number of days in each month, and how to read dates. Mastering this chapter is essential for board exams as it builds foundational time-management skills and forms the basis for complex word problems.
Start Learning FreeKey Concepts
Reading the Clock
A 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 (midnight to noon) and PM stands for Post Meridiem (noon to midnight).
Time Conversion
To convert hours to minutes, multiply by 60, because 1 hour is equal to 60 minutes.
Calendar and Days
A standard year has 365 days divided into 12 months, while a leap year has 366 days with February having 29 days.
Date Formatting
Dates can be written in numerical order as Day/Month/Year to easily calculate durations between two events.
Important Formulas
Board Exam Info
In West Bengal Board (WBBSE) Class 4 Mathematics examinations, this chapter typically carries around 6 to 8 marks. Questions usually include reading time from a given clock drawing, converting hours to minutes, solving simple word problems about elapsed time, and answering questions based on calendar months.
Frequently Asked Questions
How do I convert hours into minutes?
You simply multiply the given number of hours by 60 because 1 hour has 60 minutes.
What is a leap year and how often does it come?
A leap year has 366 days instead of 365, with February having 29 days. It comes once every 4 years.
How do we know which months have 30 or 31 days?
You can use the knuckle trick on your hands where knuckle bumps represent 31 days and spaces between knuckles represent 30 days (or February with 28/29).
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