WHO'S BUILDING?

MASTER BUILDER

GEOMETRY CRAFT

Rank up your Builder's Guild with GEOMETRY! 🧱📐

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GUILD BUILD SITES

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⛏️ BUILDER 🪵 WOOD APPRENTICE

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World 1

Wool Wrapping

Surface Area

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World 2

Statue Scaling

Similar Figures

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World 3

Angle Anvil

Angles & Triangles

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World 4

Redstone Grid

Transformations

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World 5

The Ender Build

BOSS: All Skills!

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Tap any world to jump there, even locked ones. Builders never wait around.

WORLD 1 Lesson

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W1 Q1/6

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STREAK:

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THE ENDER BUILD Place blocks. Slay the dragon. 🐉

DRAGON HP

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BUILDER HP

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WORLD 1 COMPLETE!

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MASTER BUILDER!

You conquered ALL 5 build sites!

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GEMS

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🏆 ISEE GEOMETRY READY!

📚 THE RESEARCH

FOR PARENTS & TEACHERS: The core mechanics in Master Builder are tied to published evidence, and the evidence is sorted honestly. TIER 1 lists causal evidence: randomized trials and IES/WWC practice-guide recommendations. The guide panels grade each recommendation's evidence MINIMAL, MODERATE, or STRONG (minimal-evidence recommendations rest partly on panel expert opinion), and every card below prints the level it leans on. One more honest note: these studies test the teaching practices the game borrows, not this game itself.

TIER 1: CAUSAL EVIDENCE (randomized trials and WWC evidence syntheses)

🎮 Every figure is DRAWN: pixel diagrams for surface area, similar figures, angles, and transformations on every lesson and challenge

Two WWC practice guides converge here: use visual representations in problem solving (Woodward et al., Rec 3, rated STRONG) and use concrete and semi-concrete representations (Fuchs et al., Rec 3, rated STRONG; all six recommendations in that guide are rated Strong). Geometry is the home turf of this evidence, so the game never asks about a figure it has not drawn.

Woodward et al. (2012), NCEE 2012-4055, Rec 3: visual representations (Strong). Fuchs et al. (2021), WWC 2021006, Rec 3: representations (Strong).

🎮 Lesson first, then challenges: every world teaches step by step, and every answer gets immediate feedback

Explicit, systematic instruction with immediate corrective feedback is a STRONG-rated recommendation in two separate WWC guides for students who struggle in math (Gersten et al., Rec 3; Fuchs et al., Rec 1). The game's whole structure is that recommendation: teach, model, practice, correct.

Gersten et al. (2009), NCEE 2009-4060, Rec 3: explicit and systematic instruction (Strong). Fuchs et al. (2021), Rec 1: systematic instruction (Strong).

🎮 The hint button and the post-answer explanations: pause, check the plan, then see why

Prompting students to monitor and reflect during problem solving is a STRONG-rated WWC recommendation (Woodward et al., Rec 2). Every challenge carries a hint that nudges players to check their approach before answering, and every miss ends with an explanation, not just a buzzer.

Woodward et al. (2012), Rec 2: monitoring and reflecting (Strong).

🎮 Wrong-answer options built from real student errors, each with its own explanation

Randomized in-vivo classroom experiments in algebra found that studying and explaining incorrect examples alongside correct ones improved students' CONCEPTUAL understanding beyond correct examples alone (no differences were found on procedural measures). This game applies the same design to geometry: the distractors are the documented errors, and the feedback explains why each one fails.

Booth, Lange, Koedinger & Newton (2013): randomized experiments with correct and incorrect examples (algebra classrooms).

DESIGN CHOICES WITH MIXED EVIDENCE (labeled honestly)

🎮 The comic voice: builder gags that restate the math

The design basis is Ziv's two semester-long randomized experiments with college students: classes taught with content-related humor scored higher on the same final exams. Honest caveat: experimental evidence on classroom humor in K-8 is thin, and one recent college experiment found integrated humor REDUCED learning. That is why the humor here follows content-linked guardrails: jokes restate the math being taught, and quips live between rounds, never in place of instruction or feedback.

Ziv (1988): two randomized semester experiments, college students, content-related humor. Bolkan, Griffin & Goodboy (2018): college experiments where integrated humor lowered test performance.

FULL REFERENCES

Bolkan, S., Griffin, D. J., & Goodboy, A. K. (2018). Humor in the classroom: The effects of integrated humor on student learning. Communication Education, 67(2), 144-164.

Booth, J. L., Lange, K. E., Koedinger, K. R., & Newton, K. J. (2013). Using example problems to improve student learning in algebra: Differentiating between correct and incorrect examples. Learning and Instruction, 25, 24-34.

Fuchs, L. S., Newman-Gonchar, R., Schumacher, R., Dougherty, B., Bucka, N., Karp, K. S., Woodward, J., Clarke, B., Jordan, N. C., Gersten, R., Jayanthi, M., Keating, B., & Morgan, S. (2021). Assisting Students Struggling with Mathematics: Intervention in the Elementary Grades (WWC 2021006). Washington, DC: National Center for Education Evaluation and Regional Assistance (NCEE), Institute of Education Sciences, U.S. Department of Education.

Gersten, R., Beckmann, S., Clarke, B., Foegen, A., Marsh, L., Star, J. R., & Witzel, B. (2009). Assisting Students Struggling with Mathematics: Response to Intervention (RtI) for Elementary and Middle Schools (NCEE 2009-4060). Washington, DC: National Center for Education Evaluation and Regional Assistance, Institute of Education Sciences, U.S. Department of Education.

Woodward, J., Beckmann, S., Driscoll, M., Franke, M., Herzig, P., Jitendra, A., Koedinger, K. R., & Ogbuehi, P. (2012). Improving Mathematical Problem Solving in Grades 4 Through 8 (NCEE 2012-4055). Washington, DC: National Center for Education Evaluation and Regional Assistance, Institute of Education Sciences, U.S. Department of Education.

Ziv, A. (1988). Teaching and learning with humor: Experiment and replication. Journal of Experimental Education, 57(1), 5-15.

All WWC practice guides: ies.ed.gov/ncee/wwc/PracticeGuides

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GRAB YOUR
SCRATCH PAPER!

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⛏️ ORE RUSH!

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⛏️ TIME!

🔮 REVIEW MODE Q1/5

🛠️ THE WORKSHOP

Endless practice with fresh numbers and a fresh figure every time. No hearts here. A wrong answer just teaches you and goes on your review list. Every correct answer earns +1 gem.

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