Lesson 2: SeaPerch Anatomy & Mission Objectives

How does each part in the kit contribute to the ROV's survival or movement?

How do we translate a human movement on a joystick into a mechanical thrust underwater?

Thruster: The motor/propeller assembly that provides movement.

D-PDT Switch: Double Pole, Double Throw—the "brain" of the analog control box that reverses polarity.

Potting/Sealing: The method of making electronics waterproof.

Bill of Materials (BOM): The technical inventory of all parts required for the build.

ITEEA STEL-7R: Apply a broad range of making and troubleshooting skills through hands-on activities.

NGSS HS-ETS1-3: Evaluate a solution to a complex real-world problem based on prioritized criteria.

Description: A hands-on inventory lab and collaborative brainstorming session. Students unbox the kits, label parts, and work in teams to define their specific "Mission Profile" (e.g., Speed vs. Maneuverability).

Purpose: To move from abstract concepts to the physical hardware while building team organizational habits.

DOK Level: 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 "Technical Inventory & Pitch": A two-part assessment. Part 1 is a visual ID quiz of the kit's hardware. Part 2 is a team "Mission Statement" presentation where they explain their ROV's name, its primary goal, and how they will organize their build to meet the deadline.