Final Mission Integration

Overview

In this culminating activity of the Secret Agent STEM Mission unit, students will integrate their coding, robotics, and 3D printing skills to collaboratively solve a multifaceted problem. This 120-minute lesson challenges students to work in teams, simulating a real-world STEM problem-solving scenario aligned with the Next Generation Science Standards (NGSS), specifically targeting Engineering Design and Technology concepts.

Learning Objectives

By the end of this lesson, students will be able to:

ENGAGE: Apply engineering design principles to define problems and develop multi-step solutions.
PLAN & CREATE: Collaboratively design and build a robotic solution enhanced by a coded program and a custom 3D-printed component.
TEST & ITERATE: Test prototypes and refine designs based on data and peer feedback.
COMMUNICATE: Clearly explain design choices, coding logic, and the function of 3D printed parts.

Alignment with NGSS

NGSS Dimension	Performance Expectation	Specific Standards Addressed
Science and Engineering Practices (SEP)	Planning and carrying out investigations; Developing and using models; Analyzing and interpreting data; Designing solutions to engineering problems	MS-ETS1-1, MS-ETS1-2, MS-ETS1-3
Crosscutting Concepts (CCC)	Systems and system models; Structure and function; Cause and effect	MS-ETS1-1, MS-ETS1-2
Disciplinary Core Ideas (DCI)	Engineering Design: MS-ETS1	MS-ETS1-1, MS-ETS1-2, MS-ETS1-3

Materials Needed

Classroom set of programmable robots (e.g., Sphero, LEGO Mindstorms, or similar)
Computers or tablets with coding software (Scratch, Python, or block-based coding relevant to robot)
3D printers with filament material
Pre-prepared 3D printing files and software access for customization
Whiteboards and markers for planning and brainstorming
Worksheets for design and testing documentation
Stopwatch or timer for mission phases
Printed rubric and checklist for peer reviews and self-assessment

Lesson Timeline

Time	Activity	Description
0 - 10 mins	Introduction & Mission Briefing	Teacher introduces final mission scenario—a simulated secret agent challenge involving rescue, retrieval, or environmental problem solving. Groups assigned. Clarify goals and expectations.
10 - 25 mins	Team Design Planning	Teams brainstorm and sketch a multi-component solution using robotics, coding, and 3D printing. Each team assigns roles: coder, builder, designer, and documenter. Utilize design planning worksheets.
25 - 65 mins	Build & Code Phase	Students code robots to perform specific tasks; simultaneously, teams design or customize the 3D printed parts for their mission. 3D printers initiate fabrication early for parts to be ready during testing phase.
65 - 85 mins	Testing and Iteration	Teams test their integrated robot + 3D part system on a designed obstacle or challenge course. Record data on performance, identify challenges, and modify both code and 3D designs accordingly.
85 - 100 mins	Final Modifications	Incorporate changes into coding and redesign/print additional or improved parts if possible. Prepare for final demonstration.
100 - 115 mins	Mission Presentations	Each team presents their final integrated solution, explaining how coding, robotics, and 3D printing components work together. Peers use rubrics to provide constructive feedback.
115 - 120 mins	Reflection & Wrap-Up	Teacher leads a class discussion reflecting on teamwork, problem-solving, and lessons learned. Complete self-assessment on individual contributions and challenges faced.

Activity Details

Mission Scenario (Introduction)

Students are briefed that as secret agents, their team must recover a valuable "artifact" (represented by a lightweight object) trapped behind obstacles, or simulate repairing a broken environmental sensor. They must design a robot that can navigate a course, overcome barriers posed by the teacher, and utilize a 3D printed tool attachment to successfully complete the task.

Design and Planning

Use whiteboards to sketch the robotic path and tool functionality.
Create a flowchart of the coding logic.
Plan roles clearly to foster accountability and cooperative learning.

Building and Coding

Employ block-based or text-based coding platforms aligned with previous lessons.
3D printing: If no complex modeling software was previously introduced, use simple customizable templates allowing students to modify dimensions or add features (e.g., grippers, scoops).
Keep print jobs simple enough to complete multiple iterations.

Testing

Test runs are timed; students log successes and errors.
Encourage data-driven iteration: what worked, what didn’t, why?

Presentation & Peer Review

Teams explain their integrated STEM solution emphasizing interdisciplinary connections.
Focus on communication and justified engineering decisions.

Assessment

Formative

Observation during collaboration and problem-solving.
Review of planning worksheets and log sheets.
Teacher questioning during final prep and testing.

Summative

Presentation scored with rubric including criteria: integration of coding, robotics, and 3D printing; engineering reasoning; teamwork and communication.
Self and peer evaluations on participation, creativity, and problem-solving.

Differentiation and Supports

Pair advanced students with those needing support to encourage peer tutoring.
Provide coding templates and partial 3D designs for students who struggle.
Offer roles suited to student strengths (e.g., design vs. coding vs. documentation).
Scaffold the testing phase with guiding questions and criteria.

Extensions

Have students write a “secret agent mission report” describing the scientific principles and engineering processes used.
Integrate a digital portfolio where students upload code snippets, photos of 3D designs, and video of robot performance.

Teacher Reflection Notes

Monitor group dynamics for equitable task distribution.
Check the 3D printer’s maintenance ahead of the lesson to avoid downtime.
Consider asynchronous extensions if 3D printing takes longer.
Leverage this session as a performance task summing unit competencies.

Empower your students to become real-world problem-solving secret agents equipped with cross-disciplinary STEM skills by orchestrating this thrilling, hands-on, integrative mission experience!

Teaching Instructions