First Term Lesson Note for Week Three.

Class : Primary Three

Subject : Basic Science

Topic: Measurement of Time

Subtitle: Time

Learning Objectives: By the end of the lesson, learners will be able to :

i. Define Time

ii. Identify the instruments for measuring time

iii. State the metric unit of time

Resources and Materials :

Stan Basic Science and Technology for Primary Schools, Book 3.

Lagos State Unified Scheme of Work for lower Primary Schools.

Online Resources

Instructional Material : picture chart, clock and stop watch, candle,

Building Background/connection to prior knowledge:

Learners are familiar with the topic in their previous class.

CONTENT

Definition of time

Time is the measured or measurable period during which an action, process, or condition exists or continues.

Instruments for measuring time include the following:

In ancient period people know the time by using sun rising and it setting, moon length of shadow, star, cock crow and hour glass.

In modern time, that’s this era we use clock, stop watch, hour glass or calendar. These instruments can be anything that exhibits two basic components:

(1) a regular, constant, or repetitive action to mark off equal increments of time, and

(2) a means of keeping track of the increments of time and of displaying the result

The international system (SI) Unit of measuring time is seconds (s).

Strategies & Activities :

Step 1: The teacher revises the previous topic with the learners by asking them questions orally.

Step 2: He/ she introduces the new topic to the learners by defining time.

Step 3: He / she then explains the methods of measuring time in the olden days and the modern days.

Step 4: The teacher then state the unit of time and asks the learners to recite the metric unit of time.

Step 5: Teacher evaluates the learners and entertains questions from them.

Assessment & Evaluation:

1. _____________ is the measure of duration or periods of doing something.

2. State two traditional ways of measuring time

3. State four olden methods of measuring time

4. ________________ is the standard unit of time.

5. How many hours makes a day?

6. There are ___________ days in a week.

WRAP-UP(CONCLUSION) :

Teacher goes over the topic once again for better understanding. He/she then makes necessary corrections and marks the learners notebooks.

Assignment:

1. List three modern instruments for measuring time. _____________, _____________ and ____________

2. The basic unit for measuring time is the ________________.

3. How many seconds are there in 60 minutes?

4. How many days are there in ordinary year?