Mammalian Systems · SHS3 Biology

Lesson notes

Learning Objectives

Indicator: 3.4.1.LI.2 - Describe with labelled drawings, how the reproductive system in mammals functions and works together with other systems to ensure the survival of all species.

By the end of the lesson, learners can:

Draw and label the key structures of the male and female reproductive systems of mammals, using the human system as the model.
Describe the function of each major reproductive organ (ovaries, fallopian tubes, uterus, testes, sperm duct, penis, vagina) in the production and transport of gametes.
Explain how the reproductive system depends on the hormonal system (e.g., testosterone, oestrogen, progesterone) to regulate the reproductive cycle and sexual development.
Trace the path of an ovum and a sperm cell from production to fertilisation and implantation, and identify where each step occurs.
Discuss common reproductive health challenges (e.g., gonorrhoea, syphilis) and explain how the reproductive system works together with other systems to ensure survival of the species.

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Curriculum details

Strand: Systems of Life (Strand 4)
Sub-strand: Mammalian Systems (4.1)
Content standard: 3.4.1.CS.1 - Demonstrate knowledge and understanding of mammalian systems with specific emphasis on human Respiratory, Reproductive, musculoskeletal, Nervous and Hormonal systems and how they function to ensure sustenance of human life 3.4.1.LO.1 Explain how the mammalian respiratory, reproductive, musculoskeletal, nervous and hormonal systems are related in their functions to ensure the sustenance of life.
Indicator: 3.4.1.LI.2 - Describe with labelled drawings, how the reproductive system in mammal's functions and works together with other systems to ensure the survival of all species.
Suggested placement: Semester 2, Week 11 (Week 31 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. 113

Exemplars (from the NaCCA curriculum)

Collaborative Learning: learners in mixed-ability, all-inclusive groups collect charts, videos, documentaries and photos on the reproductive system of humans and study it, noting the functions of its various parts: learners learn from one another and present their views constructively. Learners become emotionally and psychologically connected.
Initiating Talk for Learning: where possible, teacher may invite a resource person to give talks on some common diseases and problems of the reproductive system of humans, their causes, symptoms, prevention and treatment: learners acquire enhanced knowledge of the reproductive system and ask
questions on unclear parts of the lesson, thereby improving on speaking ability: learners are also freed of some beliefs and practices associated with the reproductive system, thereby giving them emotional and psychological boost.
Demonstrative Learning: use charts/diagrams and photos to explain common reproductive diseases such as gonorrhoea and syphilis, and show how to use contraceptive devices (e.g., condoms, and recommended medications) to control birth. Allow learners to ask questions and to contribute what they have read on the lesson: learners are allowed to express themselves freely; this improves their speaking skills. Learners shed off perceptions about some reproductive diseases as they become better informed. This offers them self-confidence and emotional satisfaction.
Teaching and Learning Materials:
- * Models of main organ systems of humans * Appropriate textbooks
- * LCD/ TV * Posters
- * Photos and of humans.
- videos on organ systems
Assessment (3.4.1.AS.2). The document marks these depth-of-knowledge levels for this indicator: Level 2 Skills of conceptual understanding; Level 4 Extended critical thinking and reasoning.