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Dissection Preparation
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.
Material
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
Instructor Resources
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
- ClassZone at ClassZone Virtual dissection online
- Exploratorium.edu Cow eye dissection
Special Notes and Notices
Instructor Emphasis:
- Science & Engineering Practice: Plan and conduct investigations.
- Cross-Cutting Concept: Structure and Function.
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