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