First Term Lesson Note for Week Four
Class : Primary Four
Subject : Basic Science and Technology
Topic : Changes in Animals
Duration : 40 Minutes
Period : Single Period
Reference Book :
Basic Science and Technology for Primary Schools, Book 4.
Lagos State Unified schemes of work for Upper Primary, (Primary 4 – 6)
Online Resources
Instructional Material : Chart showing the changes in Animals.
Learning Objectives : By the end of the lesson learners will be able to :
i. Identify and describe the changes in animals
ii. Mention some examples of animals and their young ones
iii. Give reasons for the differences in young and adult animals.
Content :
CHANGES IN ANIMALS
Animal are living things, that experiences different changes as they grow. Changes in animal begins after birth. Most changes in plants are permanent changes. The changes that take place in animals are called METAMORPHOSIS.
Metamorphosis is the stages of development in animals from egg to adult.
Egg ==> Larva ==> Pupa ==> Adult
There are two types of metamorphosis,
1. Complete metamorphosis : involves four stages of development. Examples are : butterfly, ant, fleas, bees, moth,
Egg ==> Larva ==> Pupa ==> Adult
2. Incomplete metamorphosis : involves three stages of development. Examples are cockroaches, grasshopper, termites, crickets, praying mantis
Egg ==> Nymph ==> Adult
Examples of changes in Animals
Change in body temperature like Lizard.
Changes in size.
Increase in height.
Changes in skin colour like chameleon.
Changes from child to adult.
Some lay eggs which later hatches to offspring. Examples are lizard, hen, fishes, birds, etc.
Some gives birth to young one alive. Examples goat, dog, cat, cow, pig, etc.
Names of some Animals and their young ones.
| Young Ones | Father | Mother |
| Piglet | Boar | Sow |
| Eaglet | Eagle | Eagle |
| Kitten | Tom Cat | Tabby Cat |
| Calf | Bull | Cow |
| Kid | He-goat | She-goat |
| Puppy | Dog | Bitch |
| Chick | Cock | Hen |
| Lamb | Ram | Ewe |
| Goosling | Gander | Goose |
INSTRUCTIONAL PROCEDURE
Step 1 : The Teacher revises the previous lesson with the learners by asking questions on Changes in Plant.
Step 2 : The Teacher introduces the lesson through question and answer by asking them to mention changes in Animals.
Step 3 : The Teacher explains the lessons and describe development stages in animals.
Step 4 : The Teacher explains the types of metamorphosis and gives examples of each.
LEARNERS ACTIVITIES
Learners participate in the class discussion
LESSON EVALUATION
Teacher ask the learners the following questions :
1. Mention three changes they observe in animals.
i. ________________________________________
ii. ________________________________________
iii. _______________________________________
2. The stages of development in insects from egg to adult is known as ___________ (a) metamorphosis (b) metamorphous (c) mental
3. There are _________ types of stages of development. (a) five (b) two (c) three
4. ________________ is the stage of development that involves three stages. (a) Complete metamorphosis (b) Incomplete metamorphosis (c) ordinary metamorphosis
5. All these insects undergoes complete metamorphosis except _______________. (a) butterflies (b) bees (c) cockroaches
6. Which of this is not an example of incomplete metamorphosis? (a) grasshopper (b) bees (c) cricket
CONCLUSION: the teacher summarize the lesson.
Assignment :
Complete the table below :
| Father | Mother | Young Ones |
| Lion | ||
| Bitch | ||
| Calf | ||
| Cock/ Rooster | ||
| She-goat |