One rung a year
Climb the Builder's Ladder
Every grade adds at most one new major tool, so skills stack without cliffs. Tap any rung to see the year.
Foundations · G3–5
Bridge · G6–7
Engineering · G8–9
Frontier · G10–12
Grade 3
Ages 8–9
24h guided
Think Like a Builder
“How do we give instructions so exactly that even a machine can follow them?”
- Unplugged algorithms with body and cards
- First ScratchJr stories with events and loops
- Levers, cams, and linkages in cardboard
Capstone
Automaton Theater
A hand-cranked cardboard automaton performs alongside its own animated digital backdrop.
New this year: ScratchJr → Scratch · cardboard mechanisms