Objectives: At the end of the lesson, pupils should be able to:-
·Investigate the main stages in the life cycle of a butterfly and a frog which includes the egg, larva and adult stages.
·To sequence and label the life stages of the butterfly and frog.
·Finish each of the four drawings around the line of symmetry. Butterfly Life Cycle Pictures: egg, larva or caterpillar, pupa, and adult.
·Explore the importance of a butterfly and a frog in the food chain of the habitat.
Title: Life cycles of a butterfly and a frog
Set induction
Teacher asks the pupils if they have seen butterflies and frogs.
Ask them to describe how the butterflies look like and where they can find the butterflies.
Ask the pupils to describe the characteristics of a butterfly and a frog that they already know.
Then invite the pupils into a story telling session. By doing this, pupils will be able to see the pictures of the life-stages of a butterfly and a frog.
Stage 1
When the story telling session is done, teacher should explain to the pupils each of the life-stages with the aids of pictures. Some pupils may need some concrete materials so that they can relate their existing knowledge.
Butterflies have four main stages in their life cycles, and they are in the following order:
Egg stage – First an adult butterfly lays oval eggs on specific kinds of leaves.
Caterpillar stage – After the butterfly lays eggs, little caterpillars emerge from them. They eat a lot and grow big on the host plant.
Chrysalis (Cocoon) Stage – The caterpillars shed their skins (this process is called molting) a few times, and finally grow a hard covering and lie inactive. This is the cocoon or chrysalis stage.
Adult Stage – Finally from the cocoon, emerges a fully grown butterfly, that resembles its parents.
Teacher shows a video of the life cycle of a butterfly
Life cycle of a butterfly
Stage 2
The life stages of a frog
Egg stage: Female frogs lay a large number of eggs which look like a mass of jelly.
Tadpole Stage: The eggs hatch and out of them come little frogs or little toads that look like fishes. They are called tadpoles (or pollywogs). They have tails and they swim and breath like a fish in water using their gills.
Adult Stage: Gradually the tadpole loses its tail and forms front and hind legs. It no longer can breathe in water and becomes an adult frog or an adult toad.
Teacher shows a video of a life cycle of a frog
The Life and Times of Froggy J. Wiggle
CB Frog Life Cycle Video
Stage 3
Teacher divide the pupils into 4 groups that is 5 person in a group
Each of the group will be named: Butterfly 1, Butterfly 2, Frog 1 and Frog 2.
For the butterfly groups, they will be doing a small research on a life cycle of a butterfly
Whereas, the frog groups will be doing a small research on the life cycle of a frog
Each group will be ask to find pictures of each stage of the life cycles and explore the sites to get the information of each stages.
Each group also have to find the importance of the two animals in the food chain within their habitat
Then each group will be presenting what they have found.
Stage 4
For this stage, it is where the pupils will do the online activities.
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