Lesson 14 Half of the Clock

    • Let’s learn more about time to the half hour.

Warm-up Number Talk: Work with 30

Find the value of each expression mentally.

Activity 1 Put Times in Order

What do you notice?
What do you wonder?

Clock. Short arrow points to 4.
Clock. Short arrow between 4 and 5.

Activity 2 Half Past What?

What time is shown on each clock?
If the time is half past, color the clock red.
If the time is o’clock, color the clock blue.
Write the time in words using half past or o’clock.

  1.  

    Clock. Short arrow points to 3.

  2.  

    Clock. Short arrow between 2 and 3. 

  3.  

    Clock. Short arrow points to 8.

  4.  

    Clock. Short arrow between 7 and 8.

  5.  

    Clock. Short arrow between 10 and 11.

  6.  

    Clock. Short arrow points to 4.

Activity 3 Notice and Wonder: The Hands on the Clock Go Round and Round

Clock. Circle split into halves, shaded blue from 12 to 6. Short arrow points between 4 and 5.

Practice Problem

Problem 1

Han says the clock shows half past 11.

Clock. Shorter arrow points between 10 and 11. Longer arrow points to 6.  

Do you agree with Han?
Show your thinking using drawings, numbers, or words.