No-Hands Cup Stack STEM Challenge BTS2

Middle School Back to School Icebreaker: 2-page STEM packet on remote manipulation tension, friction grip, stacking rate math, & robotics teamwork.

Kick off your school year with an exciting, high-energy robotics and communication team-building challenge! The No-Hands Cup Stack Challenge (BTS2) puts middle school students in the shoes of remote robotics engineers who must manipulate objects in hazardous environments without ever touching them directly with their hands.

Using only a rubber band tied to pieces of string, teams of 4 must coordinate tension, angles, and friction to lift, move, stack, and unstack plastic cups into a 3-2-1 pyramid structure!

What Is Included in This 2-Page Packet?

Page 1: Student Mission Card & Blueprint: Real-world remote manipulation scenario, clear material limits box (zero hand/body contact, string tension rules, 6-cup pyramid target), and a dedicated Team Robotic Grappler Design & Plan sketching zone for pre-activity mechanical brainstorming.

Page 2: Testing Log & Scientific Reflection: Structured Data Testing Table (log completion times and cup drops across 3 distinct tasks: Base setup, Full 6-cup pyramid, and Unstacking back to a single nest), Applied Math Connection (calculate total team completion time and determine stacking rate in seconds per cup), and reflection questions analyzing mechanical force transmission (string tension vs. friction grip), verbal vs. non-verbal communication, and engineering adaptability.

Core STEM Skills Covered:

Remote Manipulation Mechanics & Force Transmission (Tension & Friction)

Precision Team Coordination, Communication & Non-Verbal Synchronization

Data Logging, Rate Calculations (Seconds per Cup), and Total Time Addition

Adaptability & Engineering Process Iteration

Why Teachers Love This Resource:

Dollar-Store Friendly & Low-Prep: Uses basic plastic cups, rubber bands, and string!

Ultimate First-Week Team Builder: Instantly reveals student communication styles, leadership dynamics, and problem-solving patience.

Clean 2-Page Layout: Keeps student mechanical planning, time tracking, and reflections on a single front-and-back printable sheet.

Print-Ready: High-resolution, 2-page PDF format ready for instant printing.