S3.1.6 For the adult
Cells, tissues and organs
How do tiny cells make a whole body, or a whole tree?
What this chapter teaches
Living things are built in levels: cell, tissue, organ, organ system and organism. The learner puts the levels in order of size and gives an example of each in a plant and an animal.
Three questions to ask
There is no one right wording. Listen for the idea.
- What is the difference between a tissue and an organ?
- Is a leaf a cell, a tissue or an organ? How do you know?
- Which organ system in your body can you name, and which two organs are in it?
After the chapter, the learner can
- Put cell, tissue, organ, organ system and organism in order of size
- Give an example of each level in a plant and an animal
What they copy into their notebook
Cells make tissues. Tissues make organs. Organs form organ systems. Systems together make an organism. The order is cell, tissue, organ, organ system, organism.