The Master Books Buying Guide: How the 4-Subject Bundles and Subjects Are Priced by Grade

Introduction

Master Books is one of the most widely used budget curriculum publishers in American homeschooling, and the way it sells a year of school is unusual enough to confuse first-time buyers. A family can buy a single prepackaged box for a grade, or it can pick courses one subject at a time and build its own stack. The publisher prices both paths, and the gap between a full BASIC 4-Subject Set and a hand-built package can be the difference between a clean checkout and a cart full of duplicates. This guide explains exactly what is in a set, what each grade costs as of October 2026, and when buying by subject makes more sense than buying the box. For a side-by-side against the other budget heavyweight, see the Master Books vs The Good and the Beautiful comparison.

How Master Books packages a year

Master Books organizes its catalog two ways, and understanding both is the whole game. The first is shop by grade: a landing page for each level from Preschool through 12th grade, where the headline product is that grade’s prepackaged set (masterbooks.com grade-level page, retrieved June 2026). The second is shop by subject: a path that groups every course under mathematics, language arts, history and geography, science, and electives, so a family can pull one course at a time (masterbooks.com subject page, retrieved June 2026).

The prepackaged option most families start with is the BASIC 4-Subject Set. The publisher maintains a single page that lists every grade’s set side by side, which is the most useful screen in the store for a buyer comparing cost across levels (masterbooks.com 4-Subject Sets, retrieved June 2026). A “BASIC” set is the four-subject core. Grades 9 and 10 each come in more than one version, for example Grade 9 with World Geography or with U.S. History, so the cart total depends on which version a family clicks (retrieved October 2026).

What’s actually in a 4-Subject Set

The four subjects in a BASIC set are the same four at every grade: math, language arts, science, and history. The publisher describes the bundle as combining those “four key subjects” into a complete academic year built on a biblical worldview (masterbooks.com, retrieved June 2026). What changes is the content inside each strand, and the history strand in particular shifts by level: the current sets pair world geography with Grade 9, American history with Grade 10, world history with Grade 11, and civics and economics with Grade 12 (retrieved October 2026).

The Kindergarten set is a fair picture of how a single box reads at the low end. The publisher lists the Grade K BASIC 4-Subject Set as 36 weeks of coursework in language arts, math, science, and history, built from Simply K, Adventures in the World Around Me: Level K, My Story K, and Math Lessons for a Living Education: Level K (masterbooks.com Grade K set page, retrieved October 2026). The Simply K course book is listed for ages 4 to 6 (Simply K product page, retrieved October 2026). Worth knowing before you assume the box is everything: the worldview is explicitly young-earth and Bible-based across the catalog, which is the right fit for some families and a dealbreaker for others. The Master Books publisher profile covers that orientation in full.

• Math. The math strand in the elementary sets is the publisher’s spiral, story-driven Math Lessons for a Living Education line, which moves to traditional algebra and consumer math in the upper grades (masterbooks.com Scope & Sequence, retrieved June 2026). To buy or compare it on its own, the series page lists levels K through 6 and sells each as an individual book, at $39.19 with a $48.99 list price (Level 3 product page, retrieved October 2026).
• Language arts. The language strand runs phonics, grammar, writing, literature, and penmanship across the grades (masterbooks.com Scope & Sequence, retrieved June 2026). The core title is Language Lessons for a Living Education, a series that runs from Level 1 through Level 12 (series page, retrieved October 2026).
• Science. The science strand spans creation-based earth and life science through specialized high-school topics like chemistry and paleontology (masterbooks.com Scope & Sequence, retrieved June 2026). Families adding a high-school lab should read the lab credit guide alongside the set.
• History. The history strand covers world and American history and geography, with the level chosen for each grade (masterbooks.com Scope & Sequence, retrieved June 2026). For the elementary American strand the publisher uses America’s Story, a three-volume series for grades 3 through 6 (series page, retrieved October 2026).

What each grade’s set costs

The single most useful number for budgeting is the price of the BASIC 4-Subject Set at each grade. The table below reports both the sale price and the higher list price exactly as shown on each grade’s set page in October 2026, and each grade in the first column links to that page. Prices move, so treat these as an October 2026 snapshot and re-check the box before checkout. The publisher also keeps a 4-Subject Sets listing page (retrieved June 2026).

Grade 9 and Grade 10 also come in an older “classic” version at different prices: Grade 9 with U.S. History is $300.72 on sale ($375.92 list) and Grade 10 with World History is $323.90 on sale ($404.90 list) (retrieved October 2026).

A few patterns are worth reading off that table. Kindergarten is the cheapest year by a wide margin, which tracks with how light a gentle K curriculum is. Grade 1 is an outlier on the high side, because the first-grade set adds a separate phonics course, Foundations Phonics, and three extra books to its core courses (Grade 1 set page, retrieved October 2026). From Grade 6 up the price settles into a band in the high $200s and low $300s, then climbs to $341.47 at Grade 12, as the courses become full subject texts rather than combined readers. The shop link for any single year is the grade link in the table above.

One detail the price chart does not show: the sale price above is itself a discounted figure, because Master Books states that its site offers 20% off retail every day and free shipping on orders over $75 within the contiguous United States (masterbooks.com sales page, retrieved October 2026). Families who can time a purchase to a publisher sale should, and the broader curriculum sale calendar tracks when the big homeschool publishers discount.

Building a custom package by subject

The box is not the only way in. Because Master Books also sells every course individually, a family that already owns a math program it likes, or that wants to swap one strand, can build a package from the shop-by-subject page instead of the box. The subject path groups courses under mathematics, language arts, history and geography, science, and electives, and each subject page shows grade-level recommendations so a buyer can match a single course to a child’s level (masterbooks.com subject page, retrieved June 2026).

Buying by subject makes sense in a handful of common situations. A family teaching two children a grade apart can share a history or science course while buying math separately for each, which the box does not let you do. A family that wants Master Books language arts but a different math, a frequent pairing for homeschoolers who prefer a mastery math program, buys only the language strand. And a family doing a worldview-driven swap keeps the courses it wants and replaces the rest. The tradeoff is that a hand-built package usually costs more per subject than the bundled set, because the box price reflects a package discount. When in doubt, price the full set against the sum of the individual courses you actually want.

• Buy the box when you want a complete year, you are new to homeschooling, or you are teaching one child at one grade. This is the path most families take, and it is the cleanest checkout.
• Buy by subject when you are mixing publishers, sharing a course across two children, or keeping a program you already own. The teaching multiple ages guide covers how to combine grades so one science course serves two kids.

Reading the Scope & Sequence first

The cheapest mistake to avoid is a placement mismatch, and the publisher hands you the tool to avoid it. Master Books posts a full PreK–12 Scope & Sequence that organizes every course under math, language arts, history and geography, science, and electives, with each entry listing its focus, topics, skills, credits, ages, and ideal grade range (masterbooks.com Scope & Sequence, retrieved June 2026). Because Master Books math and language arts are not strictly grade-locked, the labeled grade on a box is a starting point, not a guarantee. Reading the scope entry for a course, especially its ages and ideal grade range, is the fastest way to confirm a child belongs there before money changes hands. Master Books also offers free placement tests for its language arts and math lines (masterbooks.com placement tests, retrieved October 2026).

This matters most at the seams: the jump from the combined early readers into stand-alone subject texts around Grade 4, and the move into high-school courses that carry credit values. For the broader question of how to place a child across any publisher, the how to choose homeschool curriculum guide walks through placement without leaning on a single brand.

Where the money goes, grade by grade

A useful way to think about the price chart is to map it to what a year of school actually demands at each stage. The numbers below are the same October 2026 sale prices from the grade set pages in the table above, read as a planning tool rather than a receipt.

The jump worth budgeting for is the step from elementary into middle school, where the set crosses from the low $200s into the high $200s as the combined readers give way to full subject texts. The high-school sets are the most expensive because the courses carry transcript credit and the science strand may need lab materials the box does not include; the publisher sells those separately as Master’s Class lab kits (retrieved October 2026). For families assembling a transcript, pair the high-school sets with the transcript and GPA guide.

When the bundle is the right buy

Master Books earns its place for a specific kind of family. The set is open-and-go, the lesson plans are written into the worktexts, and the price for a complete year undercuts most graded curricula, which is why budget is one of the publisher’s most-cited draws (TheHomeschoolMom curriculum reviews, retrieved June 2026). The worldview is the other deciding factor. Every strand is written from a young-earth, biblical-creation perspective, which is a feature for families who want it and a reason to look elsewhere for families who do not.

The honest limits are worth stating too. The math is gentle and spiral, which some families love and others find too slow for a child who needs more drill, a tension the math curriculum guide sorts through. And the all-in-one box can be more than a family needs if it already owns strong programs in a subject or two. For those cases, the shop-by-subject path above is the better buy. For a direct comparison against the other budget all-in-one most families weigh it against, the Master Books vs The Good and the Beautiful guide breaks down math and language arts course by course, and the The Good and the Beautiful profile covers that publisher in full.

Where to buy and what to check

The straightest path is the publisher’s own store: pick the grade, confirm which version of the BASIC 4-Subject Set it is (Grades 9 and 10 come in more than one), and check the box contents against the Scope & Sequence before checkout. Individual Master Books titles also turn up on the general marketplace, where the core lines like Math Lessons for a Living Education and Language Lessons for a Living Education are stocked, which is convenient for filling a gap in a hand-built package or replacing a single consumed worktext.

Two things to verify on any order. First, confirm the grade label against the child’s actual placement using the scope, since the math and language lines are not strictly grade-locked. Second, decide before you buy whether you want the whole box or a subset, because the package discount on the set is real and a hand-built stack of the same courses usually costs more. Not certain Master Books is the right method at all? The Curriculum Finder matches a family to programs by method, worldview, and budget, and the editors’ picks shortlist names the programs worth a first look in each subject.