Teacher Guide

Life Cycle Modeler teacher guide

Use this guide to turn the app into a structured lesson about stage-specific vulnerability, demographic leverage, and evidence-based management reasoning.

Open application Learner guide Standards

Quick Start

Recommended band

Upper high school through introductory college ecology, evolution, or conservation biology.

Typical duration

One 25-40 minute investigation or a longer paired lesson with demographic comparison and CER writing.

Device assumptions

Laptop or tablet preferred. The workbench is responsive, but comparing several runs is easier on a wider screen.

Teacher Moves

Set up the question

Ask which life stage should matter most to persistence and why.
Use a familiar organism so the stage labels are meaningful.
Keep stage structure visible, not just the total population.

During the run

Require one parameter change at a time.
Have learners justify whether survival or fecundity changed the projection more.
Ask what management or conservation implication would follow from the result.

Suggested Evidence Tasks

Prompt

Which stage has the greatest leverage on persistence in your comparison: juvenile survival, adult survival, or fecundity? Use the projection outputs as evidence.

Listen for

Recognition that stage-specific effects can outweigh whole-population intuitions.
Claims justified with projection behavior rather than only prior expectation.
Willingness to revise the “most important stage” claim after comparison.