One reason frogs are often chosen to be dissected is that their bodies provide a good overview of the organ systems of a complex living thing.
The organs present in a frog, and the way they are laid out in the body, are similar enough to humans to provide insight for students about how their bodies work.
Frogs and humans each possess a circulatory system. A difference though is that frogs have a three-chambered heart, with two atria and one ventricle compared to the human’s two atria and two ventricles. Other similarities between frogs and humans are the digestive and respiratory systems.
Day 1 – Introduction
- Student Work Packet – Topic 37
Day 2 – Virtual Textbook
- Read Biology 37 – Dissection
- cK-12 Scientific investigation (04.06)
- Read Biology Textbook – pages 798-802
- Read Biology Textbook – pages 725-729
5:10 Earthworm: nervous system
3:32 Frog Dissection Part 1
4:56 Morphology and Digestive System of Frog 512 1
Standard Daily Material
- Day 1 – Standard material – introduction day
- Day 2 – Standard material – reading day
- Day 3 – Standard material – make a presentation
- Day 4 – Standard material – give a presentation
- Extra! – Enrichment and remediation options
Other Topic Specific Resources
Special Notes and Notices
- Science & Engineering Practice: Plan and conduct investigations.
- Cross-Cutting Concept: Structure and Function.