Ecosystems | Mini Lesson
Students explore the basic parts of an ecosystem and how organisms depend on each other and their environment. This mini lesson uses simple examples, quick discussion, and a short exit task to check understanding.
| Term | Definition |
|---|---|
| ecosystem | A place where living things and nonliving things interact. |
| biotic | Living parts of an ecosystem, such as plants, animals, and bacteria. |
| abiotic | Nonliving parts of an ecosystem, such as water, sunlight, air, and soil. |
| habitat | The place where an organism lives. |
| balance | A healthy condition where parts of an ecosystem support one another. |
Show an image of a pond, forest, or desert and ask: What living and nonliving things do you see?
Think, then share quick responses with the class.
Define ecosystem, biotic, and abiotic factors. Use the image to point out examples and explain how they connect.
Listen, take notes, and answer simple questions.
Lead a class sorting activity: name items from the image and sort them as biotic or abiotic.
Participate orally or write answers in notebooks.
Ask students to choose one organism from the ecosystem and explain what it needs to survive.
Write 2–3 sentences and share with a partner.
Collect exit tickets and review key ideas with the class.
Complete a short exit ticket: define ecosystem and list two biotic and two abiotic factors.
Review the big idea: ecosystems are made of living and nonliving parts that depend on one another. Ask students to name one new fact they learned before dismissing them.
Students complete an exit ticket identifying an ecosystem and classifying biotic and abiotic factors. Teacher uses responses to check for understanding.
Choose an ecosystem near your home or in a picture. Write 5 sentences naming at least three biotic factors, three abiotic factors, and one way they interact.