
Explorers begin to dive deeper into investigation and design. This level challenges students to observe, build, test, and revise ideas while planning and collaborating with peers. With an emphasis on perseverance, responsibility, and respect, Explorers take ownership of their projects and reflect on how their designs can improve life in the classroom and beyond. Rooted in the principles of rights and responsibilities, this program encourages students to think critically and act compassionately.


Example Lesson
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In the example lesson below, students in the Explorers group (Grades 2–3) take on an exciting engineering challenge: to build a lightweight vehicle that moves using wind power. This project, titled Wind Propeller Racers, encourages students to explore motion, force, and design principles while deepening their faith and joy in discovering how God’s creation works.
The lesson begins with a picture book that introduces the concept of wind in nature and human design. A short video clip—no longer than 7 minutes—gives historical or scientific context to how wind power is used in real-life transportation or energy systems. This multimedia approach activates background knowledge and sets the stage for the hands-on challenge ahead.
The essential question of the day—“Can you build a car or vehicle that moves when the wind blows?”—is posed to the class, launching them into the Engineering Design Process. Students begin by discussing what they are being asked to do, imagining possible solutions, and sketching labeled diagrams on their personal Engineering Challenge Sheets. After individual brainstorming, teams are formed, and each student takes on a specific role such as Project Manager, Materials Manager, or Virtue Guide.
The team collaborates to choose a design, combining or refining individual ideas into a single plan. Using materials like paper, skewers, straws, and wheels, they build their wind-powered racers and prepare for testing. A fan simulates wind, and students test how well their vehicle responds to airflow—evaluating how design, weight, and propeller shape impact motion.
This lesson’s virtue focus is Joy, reminding students that trial and error is not just a science process—it’s a celebration of discovery. As they tinker, adjust, and re-test, students are encouraged to embrace the ups and downs of engineering with enthusiasm and perseverance. The soft skill of Trial and Error is elevated as a mindset, not a mistake, showing that failure is simply a step toward improvement.
The lesson also weaves in the Catholic Social Teaching principle of the Call to Participation. Students are reminded that just as the wind moves many parts to work together, we are each called to participate in the world around us—bringing our gifts, creativity, and teamwork to help others and glorify God.
Like all Kingdom Builders STEAM lessons, this one follows a consistent, faith-integrated format:
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A thematic picture book and video connection
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Structured application of the Engineering Design Process
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Development of Catholic virtues modeled after saints
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A focus on Catholic Social Teaching
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Targeted soft skills that prepare students to collaborate, communicate, and create
Through lessons like this, Explorers grow in their ability to investigate, design, and reflect—not just as engineers, but as joyful participants in God’s mission for the world.
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This Lesson also ties into one of the Kingdom Builder STEAM Adventure books: The Windy Kite Adventure and or The Case of the Sinking Boat. Learn more about the Kingdom Builders STEAM Adventures by clicking on the image below!
