Water Qualities For Human Use

Basic Science and Technology

Primary 3.

2nd Term

Second term

 

Scheme of work with lesson note

 

Week: Four

 

Class:Primary Three

 

Previous Knowledge : Young Learners have been taught

 

Example of diseases or sickness caused by harmful substances

 

In their previous lesson

 

Topic: Water (water quality)

 

Behavioural objectives: At the end of the lesson, pupils should be able to:

 

1. list the qualities of good water.

 

2. sources of good water.

 

3. explains the sources and qualities of bad water.

 

4. enumerate the qualities of good water.

 

5. enumerate the qualities of bad water.

 

Instructional material/Reference material:

Wall chart

Pictures

Online materials

 

Building Background /connection to prior knowledge :pupils are familiar with Career Prospects and Opportunities in Technology

 

Content: Water

 

WATER: water is refer to a liquid substance or clear liquid substance.it is present naturally as rain, and found in rivers, lakes and seas; its solid form is ice and its gaseous form is steam.

 

SOURCES OF GOOD WATER

 

Sources where water may be obtained include:

 

1. Ground sources such as groundwater, springs, hyporheic zones and aquifers.

 

2. Precipitation which includes rain, hail, snow, fog, etc.

 

3. Biological sources such as plants.

 

Desalinated seawater.

 

Water supply network.

 

SOURCES OF BAD WATER

 

1. Water gotten from gutter

 

2. Water gotten from the sea

 

3. Water gotten from erosions and flood.

 

QUALITIES OF GOOD WATER

 

1. Contaminant free

 

2. Mineral rich

 

3. Most be hundred percent pure and clean

 

4. Good taste.

 

5. Odourless

 

QUALITIES OF BAD WATER

 

1. Irritative odour

 

2. Dirty in colour

 

3. Contains germs

 

4. Taste poor

 

 

Presentation

 

Step 1 : The class revises the previous topic

 

Step 2 : Introduction Of the new lesson

 

Step 3 : Allow learners to give their own ideas and suggestions and corrects them when the needs arise

Evaluation:The teacher asked questions on what has been taught.

 

1. explains the meaning of disease/sickness

 

2. discuss examples of diseases and sickness caused by harmful substances.

 

3. explains symptoms and prevention of diseases and sickness.

 

4. explains treatment of the diseases/sickness.