Unplugged Robotics & Cyber-STEM Pack 2: Kinematics & Mechanical Arms (4th–8th)

Introduce spatial kinematics, mechanical advantage, joint torque calculations, 2D work envelope drafting, pick-and-place state machines, and real-world space robotics with Unplugged Robotics & Cyber-STEM Unit 2: Kinematics & Mechanical Arm Geometry! This 9-page printable resource requires zero computers, software, or microcontrollers. Designed for a seamless 60- to 75-minute hands-on lab rotation using inexpensive materials like craft sticks, brass fasteners, rulers, and paper clips. 📦 WHAT IS INCLUDED IN THIS 9-PAGE PACK? Page 1: Teacher Setup & Master Guide Features master materials checklist, room layout map, craft stick pre-drilling tips, and rotation pacing rules. Page 2: Student Answer Sheet (1-Page Master Handout) A single, accountable student worksheet designed for easy clipboard rotation through all 5 stations. Page 3: Station 1 Sign — Linkage Arm Build Lab Students assemble a 2-degree-of-freedom robotic manipulator using craft sticks and brass brads, measuring reach limits and payload capacity. Page 4: Station 2 Sign — Torque & Mechanical Advantage Lab Students solve applied physics equations calculating joint torque (Torque = Force x Distance) and lever arm mechanical advantage ratios (MA = Effort Distance / Load Distance). Page 5: Station 3 Sign — Work Envelope Blueprint Students use protractors to chart joint rotation limits (0 to 180 degrees), shade maximum reach zones, and analyze mechanical singularity risks. Page 6: Station 4 Sign — Pick-and-Place State Machine Algorithm Students trace conditional logic state pathways for an industrial manipulator arm handling automated coordinate positioning and pressure-verified payload gripping. Page 7: Station 5 Sign — Real-World Case Study Students read a technical passage on The Shuttle Transport System's Canadarm, analyzing how microgravity inertia and force-feedback joint sensors govern space robotics. Page 8: Detailed Teacher Answer Key Provides fully solved math problems, reach calculations, state machine responses, schematic standards, and case study key points in plain text. Page 9: 10-Point Master Grading Rubric A criteria-based rubric scoring each station on a clear 0-to-2 point scale for straightforward grading. 🎯 LEARNING OBJECTIVES & ALIGNMENT NGSS MS-ETS1-1, MS-ETS1-2: Engineering Design & Mechanical Systems Analysis CSTA 2-AP-10: Unplugged Algorithm Execution & State Machine Logic CCSS.MATH.PRACTICE.MP1 & MP4: Lever Arm Math, Geometry & Joint Torque Ratios 🛠️ MATERIALS NEEDED Craft sticks or cardboard strips, brass paper fasteners, paper clips, protractors, rulers, and basic calculators. Zero electronics or computers required!