Lesson 5: Time

For Grade 3 Mathematics

Lesson Objective:

Students will be able to read and write time using analog and digital clocks, understand AM and PM, and calculate simple durations.

Reading Analog Clocks:

An analog clock has an hour hand (short) and a minute hand (long). The hour hand tells us the hour, and the minute hand tells us the minutes past the hour. Each number on the clock represents 5 minutes for the minute hand.

Example:

  • If the hour hand is at 3 and the minute hand is at 12, it's 3 o'clock (3:00).
  • If the hour hand is past 6 and the minute hand is at 3, it's 6:15 (quarter past six).
  • If the hour hand is past 9 and the minute hand is at 6, it's 9:30 (half past nine).

Reading Digital Clocks and AM/PM:

Digital clocks show time using numbers, like 8:30. We use **AM** for times from midnight (12:00 AM) to just before noon (12:00 PM). We use **PM** for times from noon (12:00 PM) to just before midnight (12:00 AM).

Examples:

  • 7:00 AM - Time for breakfast in the morning.
  • 1:30 PM - Time for lunch in the afternoon.
  • 9:00 PM - Time for bed at night.

Hours and Minutes:

There are 60 minutes in 1 hour. Knowing this helps us calculate durations and convert between hours and minutes.

Example:

  • 2 hours = $2 \times 60 = 120$ minutes
  • 90 minutes = 1 hour and 30 minutes

Activity 1: Read and Write Time!

Read the time and write it in the requested format.

Activity 2: AM/PM Identification!

Is this activity happening in AM or PM?

You are doing great!

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