Curated guide

Best Secular Math Curriculum

5 curricula in this guide

Secular families don't want religious references in their math curriculum — they want clear mathematical instruction without worldview baggage. The good news is that most math programs are either explicitly secular or worldview-neutral, leaving plenty of strong options.

Our top picks span the full range of approaches and budgets. Beast Academy challenges gifted learners with rigorous problem-solving. Math Mammoth delivers affordable conceptual mastery through worktexts. Khan Academy provides a completely free K-12 spine. Pair any of these with manipulatives for kinesthetic learners or video instruction for kids who need visual explanations.

Editor's selection

Our picks

Beast Academy

Art of Problem Solving

Advanced problem-solving math for gifted elementary students, presented through comic-book-style Guide Books and an interactive online platform.

K–2 3–5

$100–$192/year

Math Mammoth

Affordable, conceptual mastery math curriculum with self-teaching worktexts. Strong on mental math and number sense. Available as printable PDFs.

K–2 3–5 6–8

$30–$40/grade

Khan Academy

Featured

Free, nonprofit, mastery-based online learning platform spanning PreK through college. Short video lessons paired with adaptive practice and unit tests, especially strong in math and SAT prep.

PreK K–2 3–5 6–8 9–12

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Acellus Academy

International Academy of Science

Fully accredited online K-12 school with WASC accreditation, AP courses, NCAA-approved cores, and military Tier I status. Same video content as Power Homeschool but with diploma, transcripts, and teacher support.

K–2 3–5 6–8 9–12

$2000–$4500/year

Outschool

Marketplace of independent teachers offering 140,000+ live small-group video classes, 1:1 tutoring, and self-paced courses for ages 3-18. Supplemental enrichment, not a full curriculum.

PreK K–2 3–5 6–8 9–12

$480–$2880/year

Power Homeschool

International Academy of Science

Self-paced video curriculum sharing identical content with Acellus Academy but without enrollment, accreditation, or teacher support. Significant 2025 price increase from ~$31/mo to $99/mo.

PreK K–2 3–5 6–8 9–12

$948–$1188/year

IXL Learning

Adaptive skill-by-skill practice platform with over 17,000 standards-aligned skills across math, language arts, science, social studies, and Spanish. Strongest as practice and diagnostic, not initial instruction.

PreK K–2 3–5 6–8 9–12

$79–$159/year

Duolingo

Featured

Gamified language-learning app with streaks, XP, and AI-adaptive lessons across 40+ languages. Best as supplemental vocab and exposure; insufficient on its own for high school foreign-language credit.

K–2 3–5 6–8 9–12

$0–$120/year

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