Substrand: "9.2 Sense and control" (12 periods)

Our eyes allow us to see things. Our ears work by detecting sound waves. Ears also sense the position of our head, helping us to keep our balance. We use our nose to breathe air and also to smell things. Our tongue allows us to find out whether the juice is sweet or sour. Our skin protects the surface of our body and also tells us to move from a very cold place to a warm place.

Learner's should:

Learner's should:

Learner's should:

9.2.1 know that humans have five senses (k)

9.2.1.1 identify the five human senses: sight, hearing, smell, taste and touch

9.2.2 know parts of the human body that is responsible for the senses (k)

9.2.2.1 identify different parts of the body that responsible for our senses; sight – eye hearing – ear nose – smell tongue – taste skin – touch

9.2.3 know the function of the main internal parts of the sensory organs (k)

9.2.3.1 describe the main functions of the internal parts of the human eye, nose ear and tongue Eye: cornea, pupil, iris, lens, vitreous humour, blind spot, optic nerve, sclera, retina Ear: pinna, outer ear canal, eardrum, hammer, anvil, stirrup, semicircular canals, nerve, cochlea and eustrachain tube Nose: external nose Nasal cavity, cilia Tongue: tip, dorsal and lateral surface Skin: epidermis, dermis and fat layer

9.2.4 be able to show the different part of tongue that is responsible for different taste (s)

9.2.4.1 demonstrate the part of the tongue responsible for; sour, bitter and sweet taste

9.2.5 understand the problems associated with human sense organs (u)

9.2.5.1 explain the problems associated with the body parts eye – long and short sightedness ear- deafness

9.2.6 understand ways to deal with sensory problems (u)

9.2.6.1 explain the use of different lenses to resolve eye i.short sightedness ii. long sightedness
9.2.6.2 explain ways to solve hearing problems

9.2.7 be able to show simple stimulus-response exercise (s)

9.2.7.1 perform simple stimulus- response exercise such as; i. put hands in hot water ii. piercing the skin with a “sharp” pin CAUTION. use warm water and blunt pin