Diseases · B2 Science

Lesson notes

Learning Objectives

Indicator: B2.5.2.1.2 - Name some common water-borne diseases and their prevention

By the end of the lesson, learners can:

Name at least three common water-borne diseases: cholera, typhoid, and diarrhoea.
Identify dirty water as the likely source of disease-causing microorganisms, and clean water as safe.
Explain in simple terms why drinking dirty water can make a person sick.
State at least two ways to prevent water-borne diseases, such as boiling water and filtering water.
Create a simple poster or song that teaches others how to prevent water-borne diseases.

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Curriculum details

Strand: Humans and the Environment (Strand 5)
Sub-strand: Diseases (5.2)
Content standard: B2.5.2.1 - Know common diseases of humans, causes, symptoms, effects and prevention
Indicator: B2.5.2.1.2 - Name some common water-borne diseases and their prevention
Suggested placement: Term 3, Week 6 (Week 30 of the year)
Our suggestion, laid out in curriculum order across three terms of twelve weeks. NaCCA does not fix the week, so follow your school's scheme of learning.
Curriculum reference: Science Curriculum (Basic 1-3), 2019, p. 46
Transcribed from the official NaCCA publication. Check this page against the source.

Exemplars (from the NaCCA curriculum)

- In groups learners observe containers of dirty water and clean water.
- Show pictures or videos of people suffering from diarrhoea, cholera, and typhoid.
- Ask learners to identify which sample of water (dirty or clean), is likely to contain microorganisms that cause diseases.
- Let learners discuss how they will prevent themselves from contracting water-borne diseases (boiling water, filtering water, etc.).
- Let learners create posters, compose songs or rhymes on how to prevent water- borne diseases.