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ZearnSupplement

Free nonprofit video lessons and practice built on Eureka Math, K–8.

Updated September 2026 · 7 sources

GradesK–8
ApproachOnline video, conceptual
Who teachesThe program does the teaching
Parent prepVery low
Screen timeOnline
Video lessonsIncluded: video lessons for every lesson
FaithNo religious content
CostFree for families (source)
PlacementNo placement test
Choose your child's grade when you set up the free account.

Is it right for your child? Answer a few questions to see how Zearn ranks against 6 other supplements.

See my match

What parents say

Parents are impressed that such a rigorous, conceptual program is free, and like that the videos do the explaining in a predictable daily routine. The main frustration is the end-of-lesson check, where one mistake can send kids back to the start. Others note heavy screen time and a pace that can feel slow for quick learners. Some families use it as their main program; many use it alongside one.

Parents love

  • Completely free
  • Rigorous and conceptual
  • Videos do the teaching

Common complaints

  • One mistake can mean starting over
  • Heavy screen time
  • Slow for quick learners

Who it fits

Best for

  • Steady, about on pace. Clear, predictable daily routine
  • Pictures and diagrams. Visual models on screen
  • Online. Runs online
  • Video lessons a big plus. Video lessons for every lesson
  • Video lessons nice to have. Video lessons for every lesson
  • Minimal: solo work. Videos do the explaining
  • Rusty. Lessons teach the concepts for you
  • Anxious about it. The program does the teaching
  • Master one topic, then move on. Conceptual, step-by-step sequence

Less suited for

  • Mostly offline. Screen-based

These come straight from the scoring rules the quiz uses.

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Questions parents ask

Is Zearn a full math curriculum?

No. We list Zearn as a supplement: it's extra practice or help to use alongside a core program, not a full year of math on its own.

Is Zearn spiral or mastery?

Zearn is described as online video, conceptual. It's mastery-based: each topic is taught in depth before moving on.

What grades does Zearn cover?

Zearn covers grades K–8.

How much does Zearn cost?

Free for families.

Is Zearn Christian or secular?

Zearn is secular: it has no religious content.

Is Zearn online?

Online. The program does the teaching.

Does Zearn have a placement test?

No. Choose your child's grade when you set up the free account.

Sources (7)

Summaries are in our own words.