Ecosystems | Assessment Review
Students review key ecosystem concepts through guided discussion, retrieval practice, and a short class activity to prepare for an assessment. The lesson focuses on how energy moves through ecosystems, how matter cycles, and how living and nonliving factors interact.
| Term | Definition |
|---|---|
| Ecosystem | A community of living organisms and their physical environment interacting together. |
| Biotic factor | A living part of an ecosystem, such as plants, animals, and microorganisms. |
| Abiotic factor | A nonliving part of an ecosystem, such as water, sunlight, and temperature. |
| Producer | An organism that makes its own food, usually by photosynthesis. |
| Consumer | An organism that gets energy by eating other organisms. |
| Decomposer | An organism that breaks down dead matter and returns nutrients to the ecosystem. |
| Food chain | A sequence showing how energy passes from one organism to another. |
| Food web | A network of connected food chains in an ecosystem. |
| Trophic level | A feeding position in a food chain or food web. |
Display a simple ecosystem image and ask quick recall questions: What living and nonliving parts do you see? Where does energy come from?
Respond verbally, label the image in notebooks, and share prior knowledge.
Review key terms one at a time, clarifying common misconceptions and connecting each term to an example.
Define terms in their own words and give an example for each.
Model one food chain and one food web on the board. Ask students to identify producers, consumers, decomposers, and energy direction.
Complete guided questions and annotate diagrams.
Distribute short review questions with multiple choice and short answer items. Circulate to support and check understanding.
Work independently or in pairs to answer questions and justify responses.
Go through selected questions, explain correct answers, and address errors or misconceptions.
Correct work, ask questions, and compare reasoning with classmates.
Ask students to complete three quick prompts: one definition, one diagram label, and one application question.
Submit responses individually before leaving.
Summarize the main ideas: ecosystems include biotic and abiotic factors, energy flows through trophic levels, and matter cycles through the environment. Remind students of the most common assessment points and answer final questions.
Formative assessment is built into the lesson through questioning, guided practice, review of practice questions, and the exit ticket.