SHS2 General Science · Semester 1 Week 9: Essentials for Survival

Lesson notes

Learning Objectives

Indicator: 2.2.1.LI.3 - Evaluate disorders of the human excretory organ system.

By the end of the lesson, learners can:

Identify at least four common disorders of the human excretory system (kidney stones, urinary tract infections, kidney failure, and nephritis) and describe their main causes and symptoms.
Explain, using a simple risk-factor chart, how lifestyle choices such as diet, water intake, and hygiene contribute to the development of excretory system disorders.
Evaluate the effects of these disorders on the normal functioning of the kidney and other excretory organs, comparing the severity of different disorders.
Propose at least two preventive measures for each disorder discussed, justifying their recommendations with scientific reasoning.
Communicate their findings from a group mini-investigation on one excretory disorder, presenting causes, symptoms, treatment options, and prevention strategies to the class.

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Curriculum details

Strand: Processes for Living (Strand 2)
Sub-strand: Essentials for Survival (2.1)
Content standard: 2.2.1.CS.1 - Demonstrate an understanding of how waste substances are removed from the human body. 2.2.1.LO.1 Model and describe the structure and function of the human body parts that are responsible for the removal of waste.
Indicator: 2.2.1.LI.3 - Evaluate disorders of the human excretory organ system.
Suggested placement: Semester 1, Week 9 (Week 9 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: NaCCA curriculum document, p. 68

Exemplars (from the NaCCA curriculum)

Project-based Learning: 1. In mixed-ability groups, do a mini-investigation on disorders of the human excretory system using internet resources and library sources that should be available to learners in advance. 2. Learners do group critiquing of their investigations.
Teaching and Learning Resources:
- Models or videos (see the link below) (https://www.kenhub.com/en/library/anatomy/human-body- systems)
- chart/picture, books
- Books
- Internet resources
- Journals
- Magazines
Assessment (2.2.1.AS.3). The document marks these depth-of-knowledge levels for this indicator: Level 3 Strategic reasoning.