B6 Science · Term 2 Week 3: The Human Body Systems

Lesson notes

Learning Objectives

Indicator: B6.3.1.1.1

By the end of the lesson, learners can:

Explain the term “excretion” and give at least two reasons why the body must get rid of waste products.
Identify the four main organs of the excretory system in humans (kidneys, lungs, skin, liver) and state where each is located in the body.
Match each excretory organ with the specific waste product it removes from the body (kidneys with urea in urine, lungs with carbon dioxide, skin with sweat, liver with bile and processed wastes).
Explain why breathing, urinating and sweating are essential activities for keeping the body healthy.
Mould a model of the human kidney using clay or blu tack and label its main parts.

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Curriculum details

Strand: Systems (Strand 3)
Sub-strand: The Human Body Systems (3.1)
Content standard: B6.3.1.1 - Recognise that different parts of the human body work interdependently to perform a specific function
Indicator: B6.3.1.1.1 - Explain the functions of organs in the excretory system of humans
Suggested placement: Term 2, Week 3 (Week 15 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 4-6), 2019, p. 38
Transcribed from the official NaCCA publication. Check this page against the source.

Exemplars (from the NaCCA curriculum)

- Engage learners to review the functions of some human organs.
- Learners explain the need for activities such as breathing, urinating and sweating.
- With the aid of videos, charts or models, assist learners to identify the organs of the excretory system of humans (kidneys, lungs, skin, liver).
- Learners, in an activity, match the parts of the excretory system with their excretory products.
- Build vocabulary of learners by explaining key biological terms such as urea, kidney, lungs and excretion.
- Learners are provided with materials such as blu tack or clay to mould the kidney of humans.
NB: The lesson should mainly focus on the kidneys, lungs, skin, and their excretory products.