How Tracing teen numbers turn 11–20 into digit-by-digit practice

What teen numbers are for

Tomorrow Kid’s 123 number grid is not only single digits. When a child opens 11–20, the app does not ship one bundled multi-digit glyph—it opens a digit-by-digit sequence instead. That path is Tracing’s teen numbers surface: two strokes that make eleven, twelve, and so on up to twenty.

Parents searching for “trace numbers 11 to 20,” “write eleven twelve handwriting,” or “two digit number tracing preschool” are looking for this corridor—not Trace a word, Fun traces, or server packs.

Parent tip: finish 0–9 on the 123 grid first so single-digit shapes feel familiar. Then open eleven as a two-step sequence: first a one, then another one.

Where teens live on the 123 grid

1. Open Tracing from Home
2. Follow the lesson path into 123 — numbers (or tap the 123 category)
3. Tap a teen tile (11–20)
4. The app opens the teen sequence canvas—not a single multi-digit outline

Entry wiring: numbers with no single bundled glyph route through TracingTeenNumberView and the shared sequence engine also used by Trace your name / Trace a word. Digits reuse the familiar 0–9 geometry, one after the other.

How a teen sequence feels

Each teen is a two-digit sequence:

• Spoken prompts use number words (“eleven”, “twelve”…) and digit coaching (“First a one, then a two”)—never raw numerals in speech
• Progress records under ordinary number ids (number-12, and so on), so the 123 grid shows stars for teens the same way it does for single digits
• Celebration hand-off chains 11 → 12 → … → 20 (“Number N ›”) so the next teen is one tap away
• Difficulty, pencils, and Left-hand mode still apply—teens change what is sequenced, not those controls

How teens differ from other Tracing surfaces

• Teen numbers (11–20) — multi-digit sequences on the 123 curriculum path; stars on number-* ids; spoken word names
• Single-digit 0–9 — one bundled glyph each on the same 123 grid (main Tracing guide)
• Trace your name & Trace a word — profile name and picture words; not curriculum teens (name & word guide)
• Fun traces & Doodle — come-alive scenes and free draw (Fun & Doodle guide)
• Server packs — chip-row locale glyph sets (server packs guide)

A calm way to introduce teens at home

1. Confirm 0–9 already have a few stars so digit shapes feel known.
2. Open Tracing → 123 and tap 11 together.
3. Say the number word out loud before the first stroke (“eleven”), then follow the digit coaching.
4. Celebrate the star on the 123 grid—teens count toward the same number progress language.
5. Use the celebration Number 12 › hand-off when energy is still high; stop after one or two teens on a short day.

What to try next

When single digits feel easy, open Tomorrow Kid → Tracing → 123, tap a teen from 11–20, and finish the two-digit sequence. Keep Lines → Shapes → letters as the weekly spine; use teens as the multi-digit extension of the number path.