Chapter 28

Stardew Valley Biology

Lesson Overview

Title: Pixelated Photosynthesis: Managing Energy and Ecosystems in Stardew Valley
Subject: Science
Age Group(s): 11–14 (Middle School)
Tags: Stardew Valley, ecosystems, photosynthesis, resource management, energy flow, life science, gamification

Description:
This lesson uses gameplay from the popular farming simulation game Stardew Valley as a phenomenon for students to analyze. Students will observe a player's actions to model and explain how farmers manage resources to cultivate crops, connecting these in-game mechanics to the core scientific principles of energy flow, matter cycling, and ecosystem dynamics.

Lesson Plan

📋 Find the full lesson plan on the companion GameClass lesson — link at the bottom of this page!

Lesson Content

I. Key Teaching Points

  • Point 1: All living organisms require a constant input of energy to perform life functions and do work.
  • Point 2: Plants capture energy from the sun and use matter (like water) from the environment to create their own food through photosynthesis.
  • Point 3: An ecosystem consists of the interactions and flow of energy and matter between living (biotic) and non-living (abiotic) components.
  • Point 4: Intentionally changing the physical or biological components of an ecosystem directly impacts the organisms within it.

II. Practical Examples

For Teaching Point 1:
The gameplay from 0:37 to 0:54 provides a clear visual representation of energy expenditure. As the player character waters each plant, the green energy bar in the bottom-right corner of the screen visibly depletes, demonstrating that performing work requires energy.

For Teaching Point 2:
The primary activity in the video is watering the crops (0:37–0:54). This illustrates the player providing a critical non-living resource (water) that the plants need for photosynthesis. The teacher can explain that this water, combined with sunlight (implied by daytime) and carbon dioxide, allows the plants to create the sugars they need to grow.

For Teaching Point 3:
The entire video showcases a simple ecosystem. The player (biotic) interacts with the soil (abiotic) to plant crops (biotic), then uses water (abiotic) to help the crops grow. The new journal entry from Willy (0:24) also hints at a different type of ecosystem — the beach — with different resources and organisms, providing a useful point of comparison.

For Teaching Point 4:
The video shows a small, cultivated plot of land next to untamed wilderness filled with trees, weeds, and stones. The player has physically altered the land by tilling it and biologically altered it by planting a specific crop (parsnips). This action directly changes the farm ecosystem from a diverse, wild area to a controlled, monoculture environment designed for human benefit.

End of Lesson