Common Core Standards and Homeschooling: What You Actually Need to Know

Homeschoolers are not required to follow Common Core State Standards. This is true in every state, including Iowa and Illinois, which adopted Common Core in full. Your curriculum choice remains yours entirely, regardless of what the local public school teaches. But understanding Common Core — what it actually says versus what critics claim — helps you make better curriculum decisions and prepares your student for standardized tests and college expectations that are shaped by these standards.

Here is what you need to know.

What Common Core Is (and Isn't)

The Common Core State Standards Initiative, launched in 2009 and adopted by most states by 2011, defines what students should know in English Language Arts and Mathematics at each grade level. It was developed by state governors and education commissioners, not the federal government — though federal incentives encouraged adoption.

Common Core is: - A set of benchmarks defining grade-level expectations for ELA and math - A guide for what students should be able to do, not how teachers should teach it - Adopted (as of 2025) by about 35 states in some form, with some states using modified versions

Common Core is not: - A curriculum - A federal mandate - A requirement for homeschoolers in any state - Applicable to science, social studies, or any subject other than ELA and math

States like Iowa, Illinois, New York, California, and most of the country use Common Core or a near-identical version as the framework for public school instruction and state testing.

Iowa and Common Core

Iowa adopted the Common Core standards in 2010 under the banner of "Iowa Core." The Iowa Core applies to public schools and governs what is tested on Iowa state assessments. It does not apply to homeschoolers.

Iowa homeschool law (Iowa Code Chapter 299A) gives families significant discretion. Families homeschooling under the independent private instruction option are required to provide instruction in specific subjects but are not bound to any state standard document. The Iowa Core is a public school tool.

That said, if your student plans to attend an Iowa public university — University of Iowa, Iowa State, University of Northern Iowa — their admissions expectations are shaped by Iowa Core graduates. Specifically, SAT/ACT content reflects Common Core math and ELA progressions. An Iowa homeschooler preparing for the ACT is, effectively, preparing for content shaped by Common Core standards, whether they ever opened the Common Core document or not.

Illinois and Common Core

Illinois adopted Common Core in 2010 through the Illinois Learning Standards framework. Public school students in Illinois are tested against these standards on the Illinois Assessment of Readiness (IAR) in grades 3–8 and the SAT in 11th grade.

Illinois homeschool law is among the most permissive in the country. The state essentially recognizes homeschools as private schools with no required registration, testing, or curriculum approval. Illinois homeschoolers have complete curriculum freedom.

If your Illinois student plans to attend a University of Illinois campus, Illinois State University, or another Illinois public university, understand that: - These universities were built expecting graduates to have covered Common Core-aligned content - The SAT (used statewide for public school juniors in Illinois) is designed around Common Core math and reading benchmarks - Math placement testing at Illinois universities reflects Common Core high school math expectations

The practical implication: your homeschool math curriculum does not need to say "Common Core" on the cover. But it does need to cover the core topics — algebra, geometry, statistics, and functions — that appear on the SAT and in college math placement. Most well-regarded homeschool math programs (Saxon, Singapore Math, AoPS) cover this territory regardless of their Common Core alignment language.

Why Common Core Matters for College Admissions

Here is the connection that surprises some homeschool families: even if you never taught to Common Core, your student's college readiness will be evaluated against it.

Standardized testing: The SAT and ACT are designed to assess college readiness as defined largely by Common Core learning progressions. An 11th grader who can handle SAT Math has, effectively, mastered the core content of Common Core high school math — whatever you called your curriculum.

College Placement: Colleges use math and English placement tests for incoming students. These tests assess skills that align directly with Common Core college-readiness benchmarks. A homeschooled student who tested into Pre-Calculus using Saxon or AoPS will place similarly to a Common Core-educated student — the labels do not matter, the skills do.

AP Exams: College Board redesigned AP curricula to align with Common Core progressions. An AP English Language student is engaging with the same close-reading and argumentation skills that Common Core emphasizes at the high school level.

What This Means for Your Curriculum Choices

You do not need to buy a Common Core curriculum, and you do not need to teach to any state's standards. What you do need is a curriculum that covers the skills and content that produce college-ready students:

Math: Solid progression from arithmetic through algebra I and II, geometry, and at minimum pre-calculus for college-bound students. Statistics is increasingly important (appears on both the SAT and ACT, and in AP Statistics).

ELA: Writing across genres (argument, analysis, narrative), close reading of complex texts (literary and informational), grammar and mechanics, vocabulary development.

Science and Social Studies: While not covered by Common Core, these subjects matter for college. Aim for biology, chemistry, and earth science in life/physical sciences; US history, world history, and geography in social studies.

The strongest validation that your curriculum hit these marks is a strong SAT or ACT score. This is why standardized testing remains important for homeschoolers even at "test-optional" colleges — it is the most direct evidence that your homeschool covered what college admissions expects.

For High School Planning

If you are in Iowa, Illinois, or any other Common Core state and planning your high school curriculum, the key question is not "does this curriculum align with Common Core?" It is: "Will this curriculum prepare my student for the SAT, AP exams, and college coursework?"

The answer for most well-designed homeschool programs is yes — the math and reading skills that matter are largely consistent across approaches.

Where families sometimes fall short is in documentation. Even if the education is excellent, a weak transcript, missing course descriptions, or absent GPA calculation can cost a student scholarship money or create friction in the admissions process. The United States University Admissions Framework provides the system for translating any homeschool approach — classical, Charlotte Mason, eclectic, project-based — into a professional college application package that admissions officers can evaluate clearly.

The Bottom Line

Common Core is a public school framework. Homeschoolers are exempt from it. But the college admissions ecosystem — standardized tests, AP exams, college placement, and admissions expectations — was built around Common Core-aligned skills. The most pragmatic approach: choose a rigorous curriculum that produces strong readers, writers, and math students, then validate those skills with strong test scores. The brand of your curriculum matters less than the competence it produces.