12-24 Month Developmental Checklist

Track your toddler's developmental progress across the full 12 to 24 month period with this evidence-based milestone checklist.

Built for early intervention specialists, SPED teachers, OTs, SLPs, and parents supporting development at home.

✅ 4 age band checklists — 12–15, 15–18, 18–21, and 21–24 months

✅ 4 developmental domains — Gross Motor, Fine Motor, Communication & Language, and Social-Emotional

✅ When to Refer indicators per age band

✅ Google Sheets tracker with auto-calculating dashboard included 📊

✅ CDC & AAP aligned

Not a diagnostic tool. For monitoring and early identification purposes only.

🎒 Part of the Early Intervention Developmental Monitoring Series — Level 2 of 4.