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Day 3: TinkerCAD Introduction — Learning 3D Design

Lesson Overview
Time 50 minutes
Objectives Set up a TinkerCAD account; learn 5 core skills (drag, resize, align, group, hole); begin a building design challenge
TEKS d(1)(C)
Deliverable Engineering notebook sketch of building design + TinkerCAD in progress (at minimum: 4 walls grouped together)
Materials Chromebooks, TinkerCAD accounts (tinkercad.com), projector, engineering notebooks (sketch on a fresh page dated and labeled "5SW Wk1 Architecture")

Warm-Up (5 min)

WARM-UP: Professional architects use software called Revit and AutoCAD to design buildings in 3D before anything gets built. Today you learn the basics of 3D design. Have you ever used any 3D modeling software before?

Quick poll, most students will say no. Reassure them that TinkerCAD is designed for beginners and the skills they learn today are the same fundamentals used in professional CAD.

Activity 1: Account Setup + Workspace Orientation (10 min)

Walk students through account creation by projecting each step on the screen:

  1. Navigate to tinkercad.com
  2. Click "Join Now" → select "Sign in with Google" → use school Google account
  3. Once signed in, click "Create new design" to open the workspace
  4. Identify the workspace elements on the projector:
    • Blue grid = the Workplane (the ground where your building sits)
    • Shape panel (right side) = drag shapes from here onto the workplane
    • Camera controls = scroll wheel to zoom, right-click and drag to rotate the view
    • Top toolbar = Align, Group, and other editing tools

Tech Setup: verify BEFORE class

TinkerCAD SSO can stall on first-use login if the school domain is not whitelisted. Pre-requisites: (1) IT whitelists tinkercad.com and *.autodesk.com at least 24 hrs before this lesson; (2) test login with 2 student accounts on the school Chromebook network; (3) have a paper-sketch fallback ready if SSO fails. Expected time: 10 min if pre-verified, 20–30 min if domain access fails.

Verify all students have a blank workplane on screen before proceeding.

Activity 2: Skill Builder — 5 Core TinkerCAD Skills (15 min)

Teach each skill one at a time on the projector. Students follow along on their Chromebooks. After each skill, do a quick visual check before moving on.

Skill 1: Drag a Shape

  • Open the Shape panel on the right → click and drag a Box shape onto the workplane
  • It appears as a red cube sitting on the grid
  • Check: "Hold up a thumb if you see a red box on your workplane."

Skill 2: Resize

  • Click the box to select it → white corner handles appear
  • Drag a corner handle to make the box tall and thin: like a wall
  • The dimension labels show the size in millimeters as you drag
  • Check: "Your box should now be tall and flat, like a wall. Thumbs up if yours looks like mine."

Skill 3: Align

  • Drag a second box onto the workplane
  • Select both shapes (click one, then hold Shift and click the other)
  • Click the Align tool in the top toolbar → alignment dots appear → click to snap them flush
  • Check: "Your two walls should be touching edge-to-edge."

Skill 4: Group

  • With both shapes still selected, click Group in the top toolbar (or press Ctrl+G)
  • The two shapes merge into one object. They move together now
  • Check: "Click somewhere empty, then click your grouped shape. Both walls should highlight together."

Skill 5: Hole (cutting openings)

  • Drag a new Box shape onto a wall
  • Click the new box → in the Shape panel (top right of the selected shape), change it from Solid to Hole: it turns transparent/striped
  • Select both the wall AND the hole shape → click Group
  • The hole cuts through the wall. This is how you make doors and windows
  • Check: "You should see a rectangular opening cut through your wall. That is a window."

Facilitation Tip

The Hole tool is the most common point of confusion. Emphasize: (1) the hole shape must overlap the solid shape, (2) you must select BOTH and Group them, (3) the hole disappears and leaves an opening. If a student's hole is floating in space, they forgot to overlap it with the wall before grouping.

Activity 3: Design Challenge — My Dream Building (15 min)

Before touching TinkerCAD, sketch first. Students open their engineering notebooks to a fresh page (dated and labeled "5SW Wk1 Architecture — Dream Building") and draw:

  • A top-down view (floor plan) of their building, label rooms and dimensions
  • A front view showing the shape, door, and windows

The design challenge specs:

  • At least 4 walls (can be rectangular or creative shapes)
  • A roof (flat or angled)
  • 1 door opening (use the Hole tool)
  • 2 window openings (use the Hole tool)

Sketch checklist (self + peer review, NOT sequential teacher approval): Before TinkerCAD work, students pair-check each other's sketches against three items: (1) floor plan shows ≥4 walls labeled with rooms or dimensions, (2) front view shows roof, 1 door, and ≥2 windows, (3) the student can name one design choice they made. Pairs check each box, then hold up sketches for a 30-second teacher spot-check. This keeps approval time to ~10 min across the class rather than the 48+ min of sequential teacher sign-offs 24 students would otherwise require. Once approved, students begin building in TinkerCAD. The goal for today is walls and roof built and grouped; door/window holes continue tomorrow.

DOK 2: How are the shapes in TinkerCAD similar to the materials a real architect specifies? What does a box represent in a building? A cylinder?

Exit Ticket (5 min)

EXIT TICKET (Short Constructed Response) · Printable PDF:

  1. List the 5 TinkerCAD skills I learned today:

1) __ 2) _ 3) ___ 4) __ 5) ____

  1. ONE design decision I made for my building sketch (choose: number of rooms, door placement, window count, roof type, unique feature):

My decision: _____

  1. In one sentence, WHY did I make this decision? (What is the building for? Who uses it?)
  1. The TinkerCAD skill I am LEAST confident about: _____. I will focus on it first in Day 4.

(d(1)(C))

Differentiation

  • Support: Provide a pre-built TinkerCAD starter template with a basic rectangular floor plan (4 walls pre-grouped). Students focus on adding the roof and cutting holes rather than starting from scratch. Share via TinkerCAD's classroom feature.
  • Extension: Add interior walls to divide the building into rooms. Experiment with cylinder shapes for columns or rounded features.
  • ELL: Provide a bilingual TinkerCAD command reference card: Drag = Arrastrar, Resize = Cambiar tamaño, Align = Alinear, Group = Agrupar, Hole = Agujero, Workplane = Plano de trabajo.