3D MODELING • LESSON 4 TEACHER GUIDE
Favorite Toy: Break a Complex Object into Shapes
Run this after the ring and before Dream Room. The lesson gives students a controlled place to practice shape decomposition before they manage measurement, scale, and room construction at the same time.
OPTIONAL WHOLE-GROUP SLIDES
Whole-group option for this lesson: download the 39-slide 3D Modeling Foundations deck · Make a Google copy. Use slides 29 through 37 to teach shape decomposition, plan from a reference, model large forms first, compare proportion, run partner feedback, and collect evidence.
- Favorite Toy: slides 29–37
What students learn
Construction means seeing a complex object as smaller forms. Students identify the boxes, cylinders, spheres, tubes, and cutouts inside a familiar toy, then rebuild and revise it in Tinkercad.
Two-period teacher flow
- Decompose and plan. Model one object with a photo. Trace or name the simple forms before touching Tinkercad.
- Build the silhouette. Students block in the largest forms first. Details wait.
- Partner check. Can a partner identify the object? Which form looks wrong or is missing?
- Revise and submit. Students improve one part, export a PNG, and name the change in their reflection.
Canvas setup
Create a Favorite Toy Activity inside your own Tinkercad class and test the student join route before class. The Canvas assignment is a 100-point Major project. Keep Dream Room after it: the two projects assess different skills. If you must cut Favorite Toy, model the decomposition step with one real object before students plan their rooms.