Writing is the bottleneck for college, work, and citizenship. We teach it like the skill it is — explicit instruction, scaffolded practice, real feedback on every piece.
K-12
Grade range
12
Levels authored
312
Total lessons
1 : 1
Tutor per child
Every writing assignment from grade 3 up is rubric-graded by the AI tutor. The rubric is specific to the prompt ('mentions photosynthesis,' 'explains why leaves are green'), not generic. You (the parent) can override any score with one click — and your overrides train the system over time.
Each level contains multiple lessons. The adaptive placement system picks the right starting level for each child — they may start higher or lower than the grade range suggests.
Letters & Words
Grades K–1 · 48 lessons
Sentences
Grades 1–2 · 24 lessons
Paragraphs
Grades 2–3 · 24 lessons
Story Writing
Grades 3–4 · 24 lessons
Informational Writing
Grades 4–5 · 24 lessons
Persuasive Writing
Grades 5–6 · 24 lessons
Essay Structure
Grades 6–7 · 24 lessons
Advanced Composition
Grades 7–8 · 24 lessons
Grade 9 — Standards
Grades 9–9 · 24 lessons
Grade 10 — Standards
Grades 10–10 · 24 lessons
Grade 11 — Standards
Grades 11–11 · 24 lessons
Grade 12 — Standards
Grades 12–12 · 24 lessons
Most homeschool curricula offload writing onto the parent because grading writing is hard. Cullinan grades writing automatically against an explicit rubric, then lets you spot-check and override — so writing actually gets practiced.
Every child profile in your house gets adaptive placement, daily plans, and real mastery verification — across Writing & Composition and every other subject. No credit card to start.