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Game-Based vs. Simulation-Based Instruction: exploring the sequencing effect on elementary pre-service teachers' understanding of the photoelectric effect

This study involving 83 elementary pre-service teachers demonstrates that a simulation-first instructional sequence significantly improves understanding of the photoelectric effect compared to a game-first approach, while also revealing that participants' preferences for educational tools are influenced by the order of exposure.

Original authors: Razan Hamed, N. Sanjay Rebello

Published 2026-06-03

📖 4 min read☕ Coffee break read

CC0 1.0

Original authors: Razan Hamed, N. Sanjay Rebello

Original paper dedicated to the public domain under CC0 1.0 (http://creativecommons.org/publicdomain/zero/1.0/). ✨ This is an AI-generated explanation of the paper below. It is not written or endorsed by the authors. For technical accuracy, refer to the original paper. Read full disclaimer

Imagine you are trying to teach a group of future elementary school teachers a very tricky concept: how light knocks electrons off a metal surface (the "photoelectric effect"). It's a bit like trying to explain how a specific key opens a specific lock, but the key is invisible and the lock is tiny.

Two researchers, Razan and Sanjay, wanted to figure out the best way to use two different digital "tools" to teach this concept:

A Video Game ("Photon Jump"): Think of this as a fun, metaphorical story. In the game, you play as an electron trapped in a room. You have to jump over a wall to escape. To jump, you need to absorb energy from "photons" (light particles). You have to find the right colored button to get the right energy. It's like a puzzle where you learn by trial and error.
A Simulation ("PhET"): Think of this as a virtual science lab. It's a direct, no-nonsense model where you can turn knobs to change the color and brightness of light and watch exactly what happens to the electrons on a metal plate. It's like looking at a blueprint of the phenomenon.

The Big Question:
Does it matter which tool you use first? Should you start with the fun game to get them interested, then move to the serious lab? Or should you start with the serious lab to get the facts straight, then use the game to reinforce it?

The Experiment:
The researchers took 83 future teachers and split them into two groups:

Group A: Played the Game first, then did the Simulation.
Group B: Did the Simulation first, then played the Game.

They tested their knowledge before they started, in the middle, and at the end.

What They Found:
The order mattered a lot!

The "Simulation-First" Group (Group B): These students showed a huge jump in their understanding. They went from knowing a little bit to knowing a lot. The researchers found this improvement was statistically very strong.
The "Game-First" Group (Group A): These students also learned, but their improvement was much smaller and not as statistically significant.

Why did this happen?
The researchers suggest that starting with the Simulation gave the students a solid, accurate foundation (the "real" rules of the universe). Once they understood the actual mechanics, the Game served as a fun way to practice and apply those rules.

If you start with the Game first, students might get caught up in the game's rules or metaphors, and it might be harder to switch their brains to the precise, scientific rules later on. It's like trying to learn to drive a real car after only playing a racing video game; the game is fun, but the real car has different rules you have to unlearn or adjust to.

What the Students Thought:

Preferences: Interestingly, what students liked depended on what they did first. If they started with the game, they tended to like the game more. If they started with the simulation, they didn't have a strong favorite one way or the other.
Future Use: Almost everyone said they would be willing to use the game in their own future classrooms to teach kids, even if they weren't used to video games before.

The Bottom Line:
Both the game and the simulation are great tools, but they work best together in a specific order. To teach complex physics to future teachers, it's better to start with the serious simulation to build the foundation, and then use the game to make it stick. It's about building the house before you decorate it.

Technical Summary: Game-Based vs. Simulation-Based Instruction in Photoelectric Effect Learning

Problem Statement
The photoelectric effect is a foundational yet conceptually challenging topic in quantum physics, particularly for elementary pre-service teachers who often possess limited physics backgrounds, low self-efficacy, and high levels of physics anxiety. While educational research supports the use of multiple representations—specifically educational video games (analogical representations) and interactive simulations (direct representations)—to enhance conceptual understanding, the optimal sequencing of these tools remains unexplored. This study addresses the gap in literature regarding how the order of instructional interventions (simulation-first vs. game-first) influences pre-service teachers' conceptual mastery of the photoelectric effect and their subsequent preferences for these tools.

Methodology
The study employed a counterbalanced quasi-experimental crossover design involving 83 pre-service teachers enrolled in a physics course at a large Midwestern university (93% female). Participants were divided into two groups of comparable size and physics competency:

Group 1 (Simulation-Game): Completed the PhET Photoelectric Effect simulation followed by the "Photon Jump" educational video game.
Group 2 (Game-Simulation): Completed "Photon Jump" followed by the PhET simulation.

Interventions:

PhET Simulation (Direct Representation): Allowed participants to manipulate variables (wavelength, intensity) and observe real-time effects on electron emission, including analytical calculations and frequency-energy graphs.
"Photon Jump" Game (Analogical Representation): A 3D game where players act as electrons, requiring them to absorb specific photon energies (via color selection) to escape a room, metaphorically representing the work function and electron ejection.

Assessment and Analysis:
Learning outcomes were measured via three standardized assessments: a pre-test (baseline), a mid-test (post-first intervention), and a post-test (post-second intervention). Performance was analyzed using single-factor ANOVA and moderation regression analyses to control for baseline differences. Qualitative data were collected through open-ended reflection questions regarding tool preference and willingness to use these tools in future teaching.

Key Results

Sequencing Effect on Performance: The Simulation-Game sequence yielded a statistically significant improvement in performance ( $p = 0.001$ ) from pre-test to post-test. In contrast, the Game-Simulation sequence showed a non-significant improvement ( $p = 0.06$ ).
Baseline Control: Although Group 1 started with a lower pre-test average (62.7%) compared to Group 2 (74.8%), moderation regression analyses confirmed that pre-test scores were not the driving factor for the final performance differences. The interaction between mid-test scores and condition was statistically significant ( $p = 0.039$ ), indicating that the intervention order specifically influenced the rate of learning from the mid-test to the post-test.
User Preferences: Preferences were sequence-dependent. Participants in the Game-Simulation group (Group 2) tended to favor the game. Conversely, Group 1 (Simulation-Game) showed a split preference with no clear favorite. However, a majority of participants across both groups expressed willingness to use games in their future elementary classrooms.
Engagement: Participants reported that the game was accessible even to those with no prior gaming experience, and the simulation was valued for its ability to manipulate specific physical parameters.

Key Contributions
This study contributes to physics education research by:

Identifying a specific sequencing effect where introducing a direct representation (simulation) before an analogical representation (game) leads to superior conceptual gains compared to the reverse order.
Demonstrating that while both modalities are effective, their integration order matters for pre-service teachers, a demographic often characterized by physics anxiety.
Providing empirical evidence that the combination of "direct" and "analogical" representations is complementary, but the pedagogical sequence determines the magnitude of learning outcomes.

Significance and Claims
The authors claim that the findings underscore the importance of thoughtful integration of diverse representations in teaching abstract physics phenomena. The study posits that educators should leverage the motivational and engaging nature of games to spark curiosity, but sequence this after the precise, parameter-controlled observations provided by simulations to maximize conceptual understanding. The paper concludes that the order of intervention is a critical variable in instructional design for pre-service teachers, suggesting that a simulation-first approach may better scaffold the transition to the metaphorical reasoning required by game-based learning in this context. Future work proposed by the authors includes integrating AI chatbots as tutors to support navigation through these tools.

Technical Summary: Game-Based vs. Simulation-Based Instruction in Photoelectric Effect Learning

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