Lesson 2: Foam Block Stack
Duration of Days: 6
Lesson Objective
Students will demonstrate mastery of 4-axis hydraulic control by successfully stacking five 1" foam cubes vertically within a designated time limit.
1. How does "operator lag" (the delay between pushing a syringe and the arm moving) affect your accuracy?
2. Why is the "order of operations" (which axis you move first) critical when stacking vertically?
3. How does the center of gravity change as the stack gets taller?
Degrees of Freedom (DOF), Precision vs. Accuracy, Center of Gravity, Tolerance, Fluid Compression, End-Effector.
NGSS MS-ETS1-4: Develop a model to generate data for iterative testing and modification.
CCSS.ELA-LITERACY.RST.6-8.3: Follow precisely a complex multistep procedure when performing technical tasks.
Description: A multi-day performance lab where pairs alternate between "Operator" and "Spotter" to stack blocks. Each day increases in difficulty (e.g., timed runs, "no-communication" rounds).
Purpose: To develop the patience and mechanical empathy required to operate non-electronic robotic systems.
DOK Level: 3 (Strategic Thinking)
In this course, we recognize that students enter the lab with varying levels of technical experience. Our differentiation strategy employs a 'Scaffolded Autonomy' approach. We provide structured, step-by-step guidance for foundational concepts while offering open-ended, 'Design Challenge' extensions for advanced learners. By utilizing peer-mentorship models, diverse instructional media (visual, tactile, and digital), and flexible project pathways, we ensure every student can move from consumer to creator at their own pace.
The Final Stack: A successful, freestanding vertical stack of 5 cubes that stays upright for at least 10 seconds. Students must also submit a "Trial Log" documenting how many attempts were made and what mechanical or human error caused each collapse.