Discovery K12
Discovery K12, Inc. · Grades PreK-12
The structured, secular, screen-based free option: daily assignments on one page, auto-graded quizzes, real emphasis on research and writing, PreK-12.
Free (optional $99/student/year Parent/Teacher Account)
Overview
Discovery K12 is a free, secular, explicitly non-Common-Core online homeschool platform for PreK-12: 20,000+ lessons, 1,000+ auto-graded quizzes and tests, daily assignments served on a single page, a 150+ ebook library, 36 weeks of STEM projects, and electives like Spanish, HTML, personal finance, and business that most free curricula skip. Student accounts are genuinely free and include all curriculum; the optional Parent/Teacher Account ($99/student/year, auto-renewing) holds the answer keys, grade book, attendance, transcripts, and diploma tools — Cathy Duffy (who names DK12 a Top Pick) notes most parents will probably want it. Her review finds the program works best from about third grade up, with unusual emphasis on research and essay writing from grade 2; early-grade lessons regularly demand skills young children don't have yet. Terms require accounts to be held by parents directly — co-ops and tutors are explicitly unsupported.
Strengths
- •Free student accounts include all curriculum — 20,000+ lessons, PreK-12, secular and non-Common-Core
- •Structured daily format with auto-grading: assignments served per-day on one clean page
- •Unusual emphasis on research skills and essay writing (two essays + presentations weekly from grade 2)
- •Electives most free curricula skip: Spanish, HTML coding, personal finance, business, home ec
- •36 weeks of STEM projects with affordable supplies
- •Per-subject grade levels switchable; self-paced or school-year schedule
- •Cheap transcript/diploma tooling via the $99 PTA for high schoolers
Limitations
- •The $99/student/year Parent/Teacher Account is where answer keys, grade book, and transcripts live — most families end up wanting it, so price it in (per-student since 2023)
- •Works much better from about grade 3 up: early-grade lessons regularly ask for skills (written sentences, independent research) that 5- and 6-year-olds don't have
- •No math answer keys even in the PTA; the publisher suggests a photo-scan app workaround
- •Lessons routinely send kids to external ad-supported websites (Ducksters, FactMonster, YouTube) — plan to supervise
- •Terms require parent-held accounts: co-ops, tutors, and pod educators cannot administer DK12 for students
- •Privacy policy is thin for a platform holding child academic records (see privacy notes)
Best fit for
Secular families wanting free + structured + independent for grades 3-12; families needing cheap transcript and diploma tooling; teens self-managing their day with parent oversight
The honest read
Discovery K12 is the structured, secular, screen-based free option: every day's assignments served up on one page, auto-graded quizzes, a real emphasis on research and essay writing, and electives like personal finance and HTML that most free curricula skip. It's genuinely free for students — with two honest asterisks. First, the $99-per-student-per-year parent account is where the answer keys, grade book, and transcripts live; most families end up wanting it, so price it in. Second, it works much better from about third grade up — the early-grade lessons regularly ask for skills (written sentences, independent research) that five- and six-year-olds don't have yet. Our privacy read: no selling of data and deletion honored on request, but the policy is thin for a platform holding your child's academic records, child data would transfer if the company were ever sold, and lessons routinely send kids onto the open, ad-supported web — plan to supervise. One more thing for pod families: DK12's terms require accounts to be held by parents directly — it doesn't support co-ops or tutors administering accounts.
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The structured, secular, screen-based free option: daily assignments on one page, auto-graded quizzes, real emphasis on research and writing, PreK-12.
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Discovery K12
Free (optional $99/student/year Parent/Teacher Account)