Ray's New Primary Arithmetic by Joseph Ray Ray's New Primary Arithmetic by Joseph Ray    

Lesson 124: Hours, Minutes, and Seconds

Directions

Teach children the definition and relationship between hours, minutes, and seconds.

Complete the steps below until children perfectly master the tasks.

Steps

STEP 1

Teach children that time can be defined using units of hours, minutes, and seconds.

• Tell children seconds are the shortest unit of the three. Count a few seconds off with the children - say 'One thousand one, one thousand two, ..., one thousand five.'
• Tell children sixty seconds make up a minute. Count a whole minute off with the children - say 'One thousand one, one thousand two, ..., one thousand sixty' etc.
• Tell children sixty minutes, or 3600 seconds make up an hour. Count a few seconds off with the children - say 'One thousand one, one thousand two, ..., one thousand five.' Tell children you'd need to keep count to 100 36 times before an hour would pass.
• Tell children 24 hours make up a day. Count a few seconds off with the children - say 'One thousand one, one thousand two, ..., one thousand five.' Tell children you'd need to keep counting all day and all night before 24 hours would pass.

STEP 2

• Show children the image below to give them an idea of the relative magnitudes of seconds, minutes, and hours.

STEP 3

• Have children recite and copy the table below until they memorize these facts and be able to recall them instantly.