Secular Homeschool Curriculum: The Best Programs That Teach Evolution, Critical Thinking, and No Religion

If you've spent any time searching for homeschool curriculum as a secular family, you already know the frustration. You find a program that looks excellent — great reviews, beautiful materials, strong scope and sequence — and then you discover that it teaches young-earth creationism in science, or that grammar exercises use Bible verses, or that history begins with Genesis. The mainstream homeschool curriculum market skews heavily Christian, and the labels "faith-neutral" and "secular" are used inconsistently enough that you can't trust them at face value.

This post is a practical guide to what secular actually means in the curriculum world, which programs deliver it consistently, and how to build a full secular curriculum without spending twice as much money piecing together scraps.

What "Secular" Actually Means (and Doesn't)

In the homeschool world, "secular" means different things to different people, and programs use the term inconsistently:

Truly secular: The curriculum makes no religious claims, does not reference scripture, teaches evolution as scientific consensus, uses an old-earth timeline for geology and cosmology, and does not include prayer or devotional content. Examples: Real Science Odyssey, Beast Academy, Moving Beyond the Page, Brave Writer.

Faith-neutral: The curriculum avoids explicitly religious content but does not actively teach secular science. A math textbook that uses no scripture is "neutral" but might avoid topics like evolution entirely. Many mainstream programs (Saxon Math, Teaching Textbooks) fall here — they won't offend secular families, but they also don't confirm secular science.

Subtly religious: The curriculum presents itself as neutral but integrates creationist assumptions, Providence in history, or scripture examples without flagging them clearly. Story of the World is frequently described this way — it includes Bible stories treated as historical events, which bothers some secular families while others skip those sections without issue.

Explicitly Christian: Apologia, Abeka, BJU Press, The Good and the Beautiful, Master Books, My Father's World. These integrate scripture, creationism, and biblical worldview throughout all subjects. They are excellent programs for Christian families and entirely inappropriate for secular ones.

When you're evaluating curriculum, the question to ask is not "Is this secular?" but "Does this teach evolution? Does it include scripture? Is the history presented from a biblical framework?"

Science: The High-Stakes Subject

Science is where secular families feel the most urgency, and for good reason — curriculum that teaches young-earth creationism as science can actively create misconceptions that students have to unlearn later.

Real Science Odyssey (RSO): The most popular choice for secular homeschoolers who want rigor. RSO teaches evolution, an old-earth timeline, and the scientific method without apology. Lab-based, hands-on, focused on scientific thinking rather than memorization. Covers one major domain per year (Life, Chemistry, Earth & Space, Physics). Cost around $90–$110 per level. Works well for grades 1–8.

Building Foundations of Scientific Understanding (BFSU): Written by a former science teacher. Extremely conceptually rigorous — it teaches science as interconnected systems of understanding rather than isolated facts. Very teacher-intensive (not open-and-go), but produces students with unusually deep scientific reasoning. Free to very low cost (the teacher guide book is inexpensive). Best for parents who are science-confident.

Mystery Science: An online video-based program for K–5 that makes science genuinely engaging. Short videos pose a mystery question and walk students through reasoning toward an answer, using minimal prep experiments. Completely secular, no religious content whatsoever, aligned with Next Generation Science Standards. Around $99/year. An excellent choice for families who want science to feel alive without a lot of teacher effort.

Generation Genius: Similar to Mystery Science — high-production-quality videos, aligned with NGSS, completely secular. Around $175/year or available through some libraries. Best for grades K–8. Better for visual learners who respond well to enthusiastic video instruction.

Elemental Science: A Charlotte Mason-inspired secular science program that uses living books (nonfiction children's science books) rather than a textbook. Secular, evolution-taught, age-appropriate. Less intensive than RSO. Good for families who want a gentler approach.

Math: Mostly Secular by Default

Math curriculum is the least ideologically loaded category. Most major math programs are effectively secular because math doesn't lend itself to religious integration.

Saxon, Math-U-See, Singapore, Teaching Textbooks, Beast Academy, RightStart, Math Mammoth — all of these are usable by secular families without modification. The one exception is that some programs (like Math-U-See at certain levels) include optional scripture verse memorization alongside math facts, which you can simply skip.

If you want the most explicitly secular math program, Beast Academy (by Art of Problem Solving) is an excellent choice — comic book format, no religious content anywhere, challenging and engaging for capable students in grades 2–5. Math Mammoth is another strongly secular option — comprehensive, affordable (PDF downloads for one purchase price, reusable for multiple children), and written by a Finnish-American author with a rigorous international math perspective.

Language Arts: Watch for Subtle Integration

Language arts varies considerably. Grammar workbooks are usually secular by format (they need sentences to analyze, and some programs choose scripture). Writing programs are more variable.

Brave Writer: Secular, literature-focused, emphasizes authentic voice and the joy of language. Founded by Julie Bogart, who is Christian personally but has built an explicitly non-religious curriculum. Widely used and trusted by secular homeschoolers.

Writing and Rhetoric (Classical Academic Press): Uses classical writing exercises from Greco-Roman rhetoric. The content is historical and literary, not religious. Secular families use it without issue.

All About Reading / All About Spelling: The reading passages in AAR at higher levels include some stories with mild Christian themes, but the phonics methodology itself is completely secular. Most secular families use it without concern.

The Good and the Beautiful: Founded by an LDS author. Content is described as "Christian" and includes scripture. Not appropriate for secular families, despite the pricing appeal.

Logic of English: Completely secular, rigorous phonics and grammar, no religious content.

History: The Hardest Category to Navigate

History is the most difficult subject for secular families because most comprehensive history programs are built on a Christian framework — either explicitly Young Earth (creation to now) or with Providence woven throughout.

Story of the World (Susan Wise Bauer): The most commonly used history program in homeschooling. Technically written from a "historical perspective" rather than a devotional one, but it includes Bible stories in the Ancient History volume treated as historical events. Secular families typically skip those sections or supplement with non-religious material for the same period. Later volumes (Medieval, Early Modern, Modern) are far less problematic. Many secular families use SOTW successfully.

History Odyssey (Pandia Press): A secular history program that follows the same four-year chronological cycle as classical programs without the religious framework. Uses "real books" (library books and historical fiction) rather than a single textbook. Completely secular, teaches history as a human story without scriptural interpretation.

Mystery of History: Explicitly Christian Young Earth. Not for secular families.

A Child's History of the World / Hillyer: Older, classic history that predates the culture wars. Has some dated language but no creationism. Used by secular classical families.

Building a Complete Secular Curriculum

The "problem" secular families face is that most all-in-one boxed curricula (Sonlight, My Father's World, Tapestry of Grace) are Christian. The equivalent secular all-in-one options are limited — Bookshark and Timberdoodle are the most notable, both offering non-religious complete-subject packages.

More commonly, secular families build eclectic curricula: Real Science Odyssey for science, Math Mammoth or Singapore for math, Brave Writer for writing, Logic of English or All About Reading for phonics, and History Odyssey or Story of the World (with modifications) for history. This takes more planning upfront but produces a curriculum that is both secular and customized to your child's learning style.

Knowing which combinations work well together — and which programs duplicate effort or leave gaps — is the hardest part of building from scratch. The United States Curriculum Matching Matrix specifically includes worldview spectrum ratings for every major program, so you can identify secular options at a glance rather than reading dozens of reviews to discover that a program isn't what it claimed to be.