Marble Maze STEM Challenge — Complete Lesson Pack (Grades 3–5) FREE

Be an engineer! Students design, build, test, and improve a LEGO marble maze with dead ends and traps — a complete engineering design challenge that runs in 2–3 class periods. Print and go: the only prep is gathering bricks.

This isn't just a build activity. The full teacher pack includes:

★ Complete 2–3 day lesson plan — Explore & Plan, Build & Test, Improve & Share

★ Abstract Concepts / Universal Themes — 9 depth & complexity icons (GATE) tagged to each part of the lesson, each with a ready-to-use discussion prompt or journal stem

★ Universal generalizations (Force, Structures, Change, Exploration) with ideas for the evidence students can collect from their own maze

★ Standards alignment — CCSS math & ELA plus NGSS engineering design (3-5-ETS1-1, 2, 3)

★ Printable student directions — PLAN → BUILD → TEST → IMPROVE → SHARE

★ 20-point rubric — 5 categories, from Expert Engineer to Just Starting

★ Extensions & differentiation — 2-level mazes, ramp angles, writing

MATERIALS: Any building bricks work — LEGO Classic sets and baseplates are perfect. Add marbles, rulers, and paper.

Perfect for STEM time, GATE clusters, makerspaces, early finishers, sub-plan-friendly project days, and end-of-unit engineering challenges.

8 pages • PDF • US Letter • 100% FREE from MySchoolHero.com

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