Life Cycles | Review Lesson
Students review the concept of life cycles by designing and testing a simple robotic or coded model that represents the stages of a living organism’s life cycle. The lesson emphasizes sequencing, systems thinking, and using robots or code to demonstrate change over time.
| Term | Definition |
|---|---|
| life cycle | The stages an living thing goes through during its life. |
| sequence | The order in which events or stages happen. |
| model | A simplified version that shows how something works or changes. |
| stage | One step in a process or life cycle. |
| program | A set of instructions that tells a robot what to do. |
| feedback | Information used to improve a design or solution. |
Show a familiar life cycle image and ask students to name the stages in order. Record responses and quickly review key vocabulary.
Think-pair-share the stages of a life cycle and explain what changes from one stage to the next.
Model how a robot or code sequence can represent each stage of a life cycle using a simple example, such as a butterfly, frog, or plant. Emphasize that each action or block stands for one stage or transition.
Identify how each robot action or code block matches a life cycle stage and take notes on the sequence.
Give groups a set of life cycle cards. Have students arrange the stages in order, then plan a robot path or code sequence that represents each stage. Support students with questioning and prompts.
Work in groups to sort stage cards and create a matching robot or coding sequence. Explain group decisions using vocabulary.
Ask groups to test their model. If the robot or code does not clearly show the life cycle sequence, guide students to revise one part at a time. Encourage precise reasoning and evidence-based changes.
Test the model, observe results, and revise the sequence so it better represents the life cycle. Record changes and why they were made.
Invite groups to briefly share their model and explain how it represents the life cycle. Highlight strong reasoning, correct sequencing, and thoughtful revisions.
Present the model, describe the stages in order, and explain one improvement made during testing.
Ask each student to complete a quick individual check: place 4 life cycle stages in order or explain how a robot sequence can model a life cycle.
Individually complete the check and submit it before leaving.
Revisit the learning goal and ask students to share one thing they learned about using robotics to model change over time. Reinforce that life cycles are ordered processes and that robots can help us represent sequences clearly.
Formative assessment through teacher observation during group work, testing, discussion, and the individual exit check. Collect the exit check to assess each student’s understanding of life cycle order and the connection between sequence and robot programming.