Measuring time: Instruments for measuring time
Subject :
Basic Science And Technology
Topic :
Measuring time Measuring time
Units
Instruments for measuring time
Class :
Primary 4
Term :
First Term
Week :
Week 11
Instructional Materials :
 wall clock
 wrist watch
 time measure table
Reference Materials
 Scheme of Work
 Online Information
 Textbooks
 Workbooks
 9 Year Basic Education Curriculum
Previous Knowledge :
The pupils have previous knowledge of solid measure
Behavioural Objectives : At the end of the lesson, the pupils should be able to
 Define time
 mention devices that are used to measure time
 say the time correctly
 convert from one unit of time measure to another unit of time measure
Content :
Time is the period or duration of an event. it is used to say how long an event is . The basic unit of measuring time is Second .Other units of time measure is as follow
The Time Measure Table
 60 seconds make one minute
 60 minutes make one hour
 24 Hours make one day
 7 days make one week
 4 weeks make one month
 12 months make one year
 365 days make one year
 366 days make one leap year
Thirty days has September
April , June and November,
All the rest are 31 except February alone ,
Which has 28 day and 29 days in each leap year
Time Measure Instruments
 Quick sand
 sun shadow
 sunlight (sundial)
 weather observation
 stop watch
 wrist watch
 wall clock
 digital clock
 major seasons
Convert From One Unit Of Time Measure To Another Unit
 Convert 2 minutes to seconds solution ( 2 x 60 sec ) = 120 seconds
 Change 5 hours to minutes solution ( 5 x 60 min ) = 300 minutes
 How many hours make 1 day solution (1 x 24 hours ) = 24 hours
Presentation
The topic is presented step by step
Step 1:
The class teacher revises the previous topics
Step 2.
He introduces the new topic
Step 3:
The class teacher allows the pupils to give their own examples and he corrects them when the needs arise
Evaluation :

Mention four time measure instruments

What is the basic unit of measuring time

When the long hand is on twelve and the short hand is on five , what time is it ?

How many minutes make one hour

Convert 4 days to hours
Conclusion :
The class teacher wraps up or conclude the lesson by giving out short note to summarize the topic that he or she has just taught.
The class teacher also goes round to make sure that the notes are well copied or well written by the pupils.
He or she does the necessary corrections when and where the needs arise.
Assignment :
Prepare for the next lesson by reading your books for Revision