Class 4 Maths - PUNJAB
Ticking Clocks and Turning Calendar
The chapter Ticking Clocks and Turning Calendar in Class 4 Mathematics for Punjab (PSEB) introduces students to the essential skills of reading time and managing dates. Students learn how to read clock faces with hour and minute hands, understand the relationship between seconds, minutes, and hours, and tell time using 'past' and 'to'. Additionally, the chapter explores the English calendar months, the number of days in each month, and how to read dates. Mastering this chapter is very important for board exams as it tests daily life problem-solving abilities and time-calculation skills, which carry significant weight in the final mathematics question paper.
Start Learning FreeKey Concepts
Reading the Clock Face
A clock has a short hour hand and a long minute hand. The short hand tells the hour, and the long hand tells the minutes as it moves from number to number.
Minutes and Intervals
Each number on the clock represents 5 minutes. When the minute hand moves from 12 to 1, 5 minutes have passed.
Time Conversions
Time can be converted between units using fixed rules, such as 1 hour equals 60 minutes and 1 day equals 24 hours.
The Calendar
A year has 12 months with a total of 365 days (or 366 days in a leap year). Months like April, June, September, and November have 30 days, while others have 31, except February.
Writing Dates
Dates are written in standard formats using numbers for days, months, and years, such as DD/MM/YYYY (e.g., 15/08/2023).
Important Formulas
Board Exam Info
In the Punjab (PSEB) Class 4 Mathematics examinations, this chapter typically carries around 6 to 8 marks. Common question types include converting hours to minutes, reading time from a given clock drawing, calculating the number of days between two dates, and word problems based on daily routines and calendar events.
Frequently Asked Questions
How do I know if a year is a leap year?
A year is a leap year if it is completely divisible by 4, and February has 29 days in that year instead of 28.
How do we read time when the minute hand is on the left side of the clock?
When the minute hand is on the left side (numbers 7 to 11), we use 'to' to show how many minutes are left for the next hour to begin.
Which months have 30 days in a year?
The four months that have 30 days are April, June, September, and November.
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