Teacher pack: Metamorphosis: stages and examples (Grade 3)
Save this file to open offline. For PDF/printing, use Ctrl+P / ⌘P.
Teacher guide
Phase B · Primary grade 3; Phase B · IPAS · Phase B · Primary grades 3–4 · IPAS
An original supplementary PanduanHewan resource; not an official module or specialist teacher review.
Goals
- Students can compare complete and incomplete insect metamorphosis.
- Students can explain tadpole-to-frog development separately from insect life cycles.
- Students can build a source-based diagram and explain its limits.
Materials
- Printed picture cards or drawings on the board
- Scrap paper and pencils
- Source extracts prepared by the teacher
Suggested timing, adaptable by the teacher
11 minutes introduction · 38 minutes activity · 14 minutes discussion · 7 minutes reflection (70 minutes).
- Give groups picture cards showing butterfly, cricket, dragonfly and frog life cycles; ask them to order the cards, separate the insect patterns with and without a pupa from the frog pattern, and explain why.
- Compare two diagrams with different numbers of pictures and discuss whether their biological stages differ.
- Complete the worksheet, then exchange sheets and compare reasoning with the answer key.
Suggested formative rubric
Teachers may adapt this. Score each criterion 0 (not yet shown), 1 (partly) or 2 (clear); the 0–6 total is not an official passing standard.
- Concepts match the reading.
- Reasoning is supported by an example or evidence.
- Can revise an answer and identify uncertainty.
Metamorphosis worksheet with answer key
Name / class / date (complete on paper):
Reading
Metamorphosis is a change in body form during an animal’s development. In insects, complete metamorphosis includes a pupa stage, while incomplete metamorphosis does not. Frogs undergo amphibian metamorphosis and do not become pupae.
- A life cycle connects young stages, adulthood and the next generation.
- Butterflies and mosquitoes develop through eggs, larvae, pupae and adults.
- Dragonflies have no pupa stage despite moving from aquatic to aerial life.
- A tadpole is a frog larva, not an insect larva.
- The number of pictures in a diagram does not define the metamorphosis type.
- In Indonesian, a butterfly pupa is commonly called a kepompong, and the adult insect after metamorphosis is the imago.
Activity 1
Write the next stage or developmental pattern requested in each row, using the lesson diagrams.
| Card or question | Your answer |
|---|---|
| Butterfly: after egg | |
| Butterfly: after larva | |
| Butterfly: after pupa | |
| Mosquito: developmental pattern | |
| Mosquito: between larva and adult | |
| Dragonfly: a pupa? | |
| Dragonfly: developmental pattern | |
| Cockroach: name of the young stage | |
| Cricket: developmental pattern | |
| Frog: larval name | |
| Frog: fate of the tadpole tail | |
| Diagram: eggs after adult |
Activity 2
- What is the key evidence of complete insect metamorphosis?
- Why discuss frogs separately?
- Why might two diagrams have different picture counts?
- Explain incomplete.
- What should you write if a picture’s identity is uncertain?
Reflection
Which evidence helped you distinguish dragonflies from butterflies?
Write one feature you still want to check in a frog diagram.
Answer key — for teachers
Separate this section from pupil copies. Page numbers depend on print settings.
Activity 1
- Butterfly: after egg: Larva or caterpillar
- Butterfly: after larva: Pupa
- Butterfly: after pupa: Adult
- Mosquito: developmental pattern: Complete
- Mosquito: between larva and adult: Pupa
- Dragonfly: a pupa?: No
- Dragonfly: developmental pattern: Incomplete
- Cockroach: name of the young stage: Nymph
- Cricket: developmental pattern: Incomplete
- Frog: larval name: Tadpole
- Frog: fate of the tadpole tail: Reabsorbed
- Diagram: eggs after adult: The next generation
Activity 2
- What is the key evidence of complete insect metamorphosis? — A pupa between larva and adult.
- Why discuss frogs separately? — Frogs are amphibians; tadpoles develop into frogs without a pupa.
- Why might two diagrams have different picture counts? — One diagram may divide growth within a stage into several pictures. Check labels and sequence.
- Explain incomplete. — An insect developmental pattern without a pupa, not failed development.
- What should you write if a picture’s identity is uncertain? — Record it as uncertain and seek a labelled source; do not invent a name or stage.
Sources and updates
2026-10-02
- Kemendikdasmen — IPAS Kelas III, Edisi Revisi 2025, Bab 4
- Keputusan Kepala BSKAP No. 046/H/KR/2025, CP IPAS Fase B
- Australian Museum — Metamorphosis: a remarkable change
- Australian Museum — Insects
- KBBI VI Daring (Badan Bahasa, Kemendikdasmen): kepompong
- KBBI VI Daring (Badan Bahasa, Kemendikdasmen): imago
- KBBI VI Daring (Badan Bahasa, Kemendikdasmen): nimfa
- University of Florida — Lime Swallowtail Papilio demoleus
- University of Florida — Yellow Fever Mosquito Aedes aegypti
- Australian Museum — Dragonflies and damselflies
- Australian Museum — Frog life cycle
- University of Michigan, Animal Diversity Web — Duttaphrynus melanostictus
PanduanHewan.org · May be copied for non-commercial teaching with attribution.