Core Skills Analysis
Mathematics
Micah measured the length, width, and height of the gum dispenser he wanted to print, then calculated its volume using multiplication of whole numbers and fractions for the small tolerances. He converted those dimensions into the digital modeling software, scaling the design by 0.75 to save filament. While setting the printer’s extrusion rate, he applied decimal multiplication to determine the amount of material needed. Through these steps, Micah practiced real‑world measurement, geometry, and rational‑number operations.
Science
Micah identified a specific need for a gum dispenser and a hand mixer, then followed the engineering design process by brainstorming, prototyping, testing, and refining his 3‑D printed solutions. He explored how the filament material melts and solidifies, observing a physical change from liquid to solid as the printer extrudes the plastic. By constructing mini catapults, he examined how stored elastic energy is released as kinetic energy, linking force, motion, and energy principles. His work demonstrated an understanding of material properties and energy transformation.
Tips
1. Host a mini‑design challenge where Micah sketches a new household tool, creates a bill of materials, and estimates filament cost before printing. 2. Pair the 3‑D printing project with a geometry worksheet that asks him to calculate surface area and volume for each part, reinforcing spatial reasoning. 3. Set up a simple experiment to measure how far his catapult launches a small object, recording data and graphing the results to explore cause‑and‑effect relationships. 4. Encourage Micah to keep a project journal documenting the problem definition, design iterations, and reflections on what worked or needed adjustment.
Book Recommendations
- Rosie Revere, Engineer by Andrea Beaty: A lively picture book about a young inventor who learns that perseverance and creative problem‑solving turn ideas into real inventions.
- Maker Lab: 28 Super‑Cool Projects by Jack Challoner: Hands‑on projects that guide kids through building gadgets, from simple machines to basic 3‑D‑printed objects, fostering engineering thinking.
- The Way Things Work by David Macaulay: An illustrated guide that explains the physics behind everyday devices, helping kids connect concepts like force, motion, and energy to real tools.
Learning Standards
- Mathematics TEKS 111.7.b.3 – Micah used measurement, fractions, and scaling to determine the size of the gum dispenser and hand mixer, practicing rational‑number computations.
- Science TEKS 112.2.b.6 (Grade 1) – By building mini catapults, Micah observed how stored elastic potential energy converts to kinetic energy, illustrating force, motion, and energy concepts.
- Science TEKS 112.20.b.6 (Grade 8) – Micah evaluated the filament’s material properties, recognizing the physical change from liquid to solid during printing and how different settings affect the final product.
Try This Next
- Design‑brief worksheet: list the problem, required dimensions, material constraints, and sketch the part before printing.
- Geometry & measurement sheet: calculate volume, surface area, and scale factor for each printed object to reinforce math skills.