K–12 Online Homeschool Curriculum
STEAMESA OpUs™ OS is a complete K–12 learning platform with standards-aligned curriculum, textbook-quality math, student and guardian dashboards, verified completion receipts, and Arizona ESA support.
Choose the learning option that fits
STEAMESA OpUs brings structured K–12 lessons, student tools, guardian visibility, and organized completion records together. Full curriculum access costs $174 for one quarter, including the $15 Audit Vault and two guardian-selected electives per quarter.
Full curriculum by grade
- Kindergarten curriculum
- Grade 1 curriculum
- Grade 2 curriculum
- Grade 3 curriculum
- Grade 4 curriculum
- Grade 5 curriculum
- Grade 6 curriculum
- Grade 7 curriculum
- Grade 8 curriculum
- Grade 9 curriculum
- Grade 10 curriculum
- Grade 11 curriculum
- Grade 12 curriculum
Focused subject tracks
Grades 3–8 mathematics and English Language Arts: $87.50 per semester or $165 full year. Science: $165 full year. Subject tracks are separate purchases.
Standalone electives and story courses
Choose a four-week project elective for $29, or explore Uncommon Decency, a separate $90 course with nine sequential lessons for Grades 6–12. Uncommon Sense has its own course preview and inquiry path.
Payment and access
Private-pay families review their selected product in the STEAMESA store. ESA families start in ClassWallet Marketplace where available; Direct Pay steps depend on the program. Each student needs their own enrollment. Review the store's access terms and no-refund policy before paying.