Nancy Larson Science

Nancy Larson Science is a premium, fully scripted elementary science curriculum written by the author of K-3 Saxon Math, in which the box you order contains everything from the teacher's manual to the specimens and safety goggles, and almost nothing is left for the parent to find.

Last updated: 2026-04-24 · Every Homeschool Editorial Team

At a glance

Method	Traditional, subject-specialist, fully scripted, hands-on
Worldview	Secular
Grades	K-5 (elementary) with middle-school modules
Formats	Print materials, teacher guide, student booklets, included hands-on kit
Cost tier	Premium
Parent intensity	4
ESA-common	Varies
Accredited	No
Established	Nancy Larson Publishers, post-Saxon Math authorship
Website	nancylarsonscience.com

Our scoreboard (1-5)

Criterion	Score	One-line reason
Academic rigor	4	Scientifically accurate, developmentally calibrated, incrementally rigorous
Ease of teaching	5	Fully scripted teacher's manual; nothing to prep, nothing to source
Content quality	5	Professionally produced materials, included kit items, careful writing
Flexibility	2	Designed as a complete program; not built for a la carte use
Value for money	3	$420-$510 per level is expensive, but the included kit reduces hidden costs to zero
Worldview scope	5	Secular, mainstream scientific content, no religious framing
Visual/design	4	Clean, well-produced student booklets; professional teacher materials
Support resources	4	Customer service by phone and email; website resources; scripted teacher guidance

Who the publisher is

Nancy Larson Publishers is the science-curriculum company founded by Nancy Larson, one of the original authors of the K-3 Saxon Math series. Larson worked as the primary author on the Saxon Math elementary materials during the program's first decades, and the Saxon pedagogical philosophy, incremental development, daily practice, built-in review, and scripted teacher guidance, is the explicit foundation for the science curriculum she began publishing independently in the years after her Saxon work. The company is small, family-owned, and based in Connecticut.

The curriculum is sold in two parallel editions: a classroom edition for schools and a homeschool edition sold directly to families. The classroom version is used in a modest number of private schools and supplemental science programs, while the homeschool version is the primary channel that brings the program into American homes. Cathy Duffy's review framework describes Nancy Larson Science as one of the few elementary science programs that combines Saxon-style structure with genuine hands-on laboratory work, and the program has acquired a loyal if quiet following in the classical and traditional-homeschool community over the past fifteen years.

The editorial frame is secular and scientifically mainstream. The biology units teach evolution and the age of the earth as settled consensus; the astronomy units use the standard cosmological timeline; the geology units treat radiometric dating as ordinary. Nancy Larson Science is not a Christian or a creationist program, and families who want a young-earth or explicitly religious science curriculum should look elsewhere. For secular, Catholic, Jewish, or scientifically-mainstream Protestant families who want rigorous elementary science, Nancy Larson is one of the most carefully produced options on the market.

The core pedagogy

Nancy Larson Science teaches science the way Saxon Math teaches math: incrementally, with daily scripted lessons, with concepts introduced and then returned to again and again across the school year, and with parent-delivered instruction supported by a teacher's manual that reads nearly word-for-word. A typical lesson has the parent read a passage from the scripted manual, prompt the student through observation of a specimen or materials, read from the student booklet, lead a guided discussion, and conduct a hands-on activity or experiment using materials from the program's included kit. Students are expected to complete the same type of work every day; the cognitive load is in the content, not in figuring out what to do.

Scope and sequence is calibrated level-by-level to developmental readiness. Science K introduces young children to the five senses, weather observation, basic classification, and life cycles. Science 1 through Science 4 progress through life science, Earth science, and physical science at increasing depth, with Science 3 focusing on botany, Science 4 on geology and the Earth, and Science 5 on astronomy and the physical universe. The middle-school modules (which are less commonly adopted by homeschool families) continue the sequence into life science, Earth-and-space science, and physical science with more writing, more independent lab work, and more formal assessment.

Signature mechanics: (1) Fully scripted teacher's manual, every lesson tells the parent what to say, what to ask, what to expect, and how to respond. (2) Included kit, every program ships with the physical items (magnifiers, specimens, tools, papers, labels, even safety goggles) needed for every lesson. Parents do not source materials. (3) Daily incremental lessons, typically thirty to forty-five minutes per day, four or five days a week. (4) Integrated reading and writing, vocabulary practice and writing short responses are built into the lessons, which means science doubles as an early-literacy support. (5) Hands-on investigation every week, the program is not a textbook program; it is a lab-supported program with experiments built into the rhythm.

The Saxon inheritance shows throughout. Concepts introduced in Lesson 5 reappear in Lesson 15, Lesson 32, and Lesson 80. A student who completes a full Nancy Larson Science level has encountered most of that level's vocabulary and concepts many times, in many contexts. This is the same "cumulative review" approach that defines Saxon Math and is widely credited with the Saxon program's strong retention outcomes. Whether the retention advantage carries equally into science is harder to measure, but the pedagogical logic is coherent.

A day in the life

A first-grader using Nancy Larson Science 1 starts the day's lesson with the parent opening the scripted teacher's manual to the current lesson number. The parent reads the introductory passage aloud, shows the child today's specimen (a leaf, perhaps, for a life-science lesson, or a small rock collection for a geology lesson), and asks the scripted guiding questions. The child responds orally, works through a small observation activity using tools from the kit (a hand lens, an eyedropper, a color chart), and then completes a short written page in the student booklet, perhaps labeling parts of a plant or drawing a picture of what they observed. Total session time: thirty to thirty-five minutes. No materials to source; the kit provided everything.

A fourth-grader using Nancy Larson Science 4 runs longer and with more independent reading. The parent reads less and facilitates more, the student works through more substantial written tasks, and experiments include multi-step protocols with recorded observations. Daily time: forty to forty-five minutes. Weekly time commitment averages three to four hours. A full Nancy Larson Science level typically takes an academic year at this pace, though families often stretch or compress depending on their weekly schedule.

What they do exceptionally well

Preparation-free elementary science. Nancy Larson is the single best option we know of for a family that wants serious elementary science but cannot or will not source materials themselves. Every rock, every magnifier, every pair of plastic safety goggles, every specimen, every label, every color chart ships in the box. For families without easy access to scientific supply stores, or for parents whose executive-function budget cannot absorb weekly shopping trips, this matters significantly. The closest competitor on this specific axis is BFSU (which requires heavy parent prep) or Mystery Science (which has thinner hands-on content). Nancy Larson genuinely eliminates the prep burden.

Scripted teacher guidance that makes parents sufficient. A parent who has not done elementary science since elementary school can run Nancy Larson because the teacher's manual tells them what to say, what the child should observe, what misconceptions to watch for, and what the correct answers are. This is rare in elementary science publishing, where most programs assume either a parent with science background or a willingness to improvise. Nancy Larson assumes neither.

Secular scientific content done well. For families who want elementary science that teaches evolution, deep time, and the current scientific consensus without apology and without political framing, Nancy Larson executes that content cleanly. The biology units describe common ancestry matter-of-factly. The geology units use standard geological timelines. The astronomy units present the Big Bang as the cosmological consensus. Students who continue from Nancy Larson into middle-school and high-school science programs transition without having to unlearn anything.

What they do poorly

Price. Nancy Larson Science K is priced at $420 as of April 2026, Science 1 through Science 3 at $460 each, Science 4 at $480, and Science 5 at $510. A family educating two elementary children will spend $900-$1,000 per year on science alone. For the included kit and the scripted teacher's manual this is reasonable, but it is also the highest-priced per-year elementary science curriculum in mainstream homeschool publishing. Families on a budget should plan around it.

Not designed for flexibility. Nancy Larson is built to be used as a complete program at the level for which it was written. A family wanting to use just the curriculum book and source their own kit materials cannot do so (the kit and book are sold together). A family wanting to combine Nancy Larson with another program cannot skip the hands-on activities without breaking the pedagogical sequence. A family with children straddling two grade levels cannot easily combine siblings, each level is written for one grade band. For families who want flexibility, Nancy Larson is a constraint.

Not reusable across siblings without re-purchasing the kit. The kit is consumed during the course. Specimens may still be around, but the stickers, papers, and one-use items are used up. A family with a second child coming through the program the following year either purchases the kit again or patches together the missing items themselves. This compounds the cost across multiple children and is a meaningful hidden expense.

Who it fits / who it doesn't

• Pick Nancy Larson if: you want serious elementary science without weekly shopping for materials; you value scripted teacher guidance; you are secular, Catholic, Jewish, or scientifically-mainstream Protestant; you have budget for premium curriculum and want to pay once; you appreciate Saxon Math's pedagogy and want the same approach in science; you are teaching one or two elementary students rather than four or five.

• Skip Nancy Larson if: you need a budget curriculum; you want a young-earth or explicitly Christian science program; you want flexibility to mix and match with another program; you are teaching multiple children across three or more grade levels and cannot run parallel programs; you prefer textbook or reading-based science to hands-on daily labs; you enjoy sourcing your own materials.

Cost honest assessment

Nancy Larson Science homeschool levels are priced as follows on shop.nancylarsonhomeschool.com as of April 2026: Science K at $420, Science 1 at $460, Science 2 at $460 (marked back in stock soon), Science 3 at $460, Science 4 at $480, and Science 5 at $510. Each kit is a one-time purchase including the teacher's manual, student materials, and all hands-on supplies. Shipping is additional; rates depend on destination and weight of the kit.

The competitive comparison: Mystery Science runs approximately $99-$199 per year for a subscription with thin hands-on content and optional supply lists. BFSU (Building Foundations of Scientific Understanding) runs approximately $35-$45 per volume for the parent guide, with materials sourced by the parent (typical supply cost runs $50-$150 per volume depending on the family's resourcefulness). Apologia's elementary science series runs approximately $70-$100 per textbook plus $30-$60 per notebook, with materials sourced by the parent. Real Science 4 Kids runs approximately $40-$80 per level plus sourced materials.

A realistic all-in annual budget for one Nancy Larson Science level runs $420-$510 with nothing further to source. For a family of two elementary children running separate Nancy Larson levels, plan on $900-$1,000 per year in science alone. This is two to five times what competitors charge and bought with that spend is the elimination of nearly all material sourcing, plus a fully scripted teacher's manual.

ESA eligibility notes

Nancy Larson Science availability on state ESA marketplaces varies. The program is approved in some Arizona ClassWallet and Florida Step Up for Students categories, and is accepted on a number of other state ESAs that cover hands-on science kits. Because the program combines curriculum materials and physical supplies in a single purchase, some ESA marketplaces list it as a "bundle" or "kit" rather than as "curriculum," and the categorization can affect reimbursement. Nancy Larson's customer service team handles ESA marketplace questions directly and can confirm approval status and ordering workflow for specific state programs on request. The program's secular, mainstream-scientific content means religious-materials restrictions do not apply.

Alternatives

• BFSU (Building Foundations of Scientific Understanding), a family would choose BFSU over Nancy Larson because BFSU is dramatically cheaper, teacher-text-only rather than kit-included, and appeals to parents who prefer to source materials themselves and who value the author's careful attention to scientific misconceptions.
• Mystery Science, a family would choose Mystery Science over Nancy Larson because Mystery Science is delivered as short video lessons with optional supply lists and is dramatically cheaper, better suited to families who want elementary science as a light weekly activity rather than daily instruction.
• Real Science 4 Kids, a family would choose Real Science 4 Kids over Nancy Larson because RS4K offers grade-level chemistry, biology, and physics texts that track across multiple years and is less expensive while remaining secular and scientifically mainstream.

How we verified this

Our editorial team reviewed the Nancy Larson Science homeschool shop, the all-products collection, the Nancy Larson Publishers main page, the Science K program page, the Science 3 program page, and the Science 4 announcement page. We cross-referenced against Cathy Duffy's review of Nancy Larson Science. Prices and program details verified April 2026.