Illinois Microschool Curriculum Requirements: Section 26-1 Explained

Illinois microschool founders frequently ask whether the state mandates a specific curriculum or requires approval for what they teach. The answer is simpler than most expect: there is no curriculum approval process, no registration requirement, and no state testing mandate. What Illinois does require is that you cover six specific subject areas — and that you cover them in English.

Understanding exactly what Section 26-1 requires (and what it does not) shapes every curriculum decision you make.

What Section 26-1 Actually Says

Illinois Compiled Statutes 105 ILCS 5/26-1 defines the compulsory attendance obligation and specifies what instruction must cover for a private school to satisfy it. Under People v. Levisen (1950), a microschool or homeschool qualifies as a private school in Illinois — which means Section 26-1 applies directly.

The statute requires instruction in these six branches:

1. Language arts — reading, writing, grammar, literature, composition
2. Mathematics
3. Biological and physical sciences
4. Social sciences — history, geography, civics
5. Fine arts
6. Health and physical education

That is the complete list. Illinois law does not specify which math program you use, how many hours per week you spend on science, which history curriculum you adopt, or how fine arts instruction is delivered. The requirement is that these subjects are covered — not how they are covered.

There is also no required number of instructional days. Public schools follow a 185-day calendar; private schools, including microschools, are not bound by it. Most microschool founders aim for 170-180 days as a practical benchmark for academic credibility, but it is not mandated.

The English Instruction Requirement

Section 26-1 includes a specific mandate that all required instruction must be conducted in the English language. This is the one curricular constraint that has real teeth, and it matters for a specific type of microschool that is increasingly common in Illinois: bilingual or dual-language programs.

Parents interested in Spanish-English, Mandarin-English, or other dual-language immersion environments sometimes ask whether a microschool can operate entirely in a non-English language. The answer is no — not for the core statutory subjects. You can teach a second language as an elective, you can use immersive conversational methods for language acquisition, and you can run enrichment activities in a second language. But instruction in language arts, mathematics, science, social sciences, fine arts, and health/PE must satisfy the English instruction requirement.

Bilingual microschools are legal in Illinois. They simply need to ensure that the core required branches are delivered in English, even if supplementary instruction or classroom culture incorporates additional languages.

Curriculum Options for Multi-Age Microschool Settings

One of the genuine challenges for microschool curriculum planning is that most commercial curricula are designed for single-grade classrooms, not multi-age groups of 5-15 students spanning several grade levels. The platforms that handle multi-age settings well are worth knowing.

Miacademy is an adaptive online platform that adjusts to each student's current level rather than locking them into grade-year sequencing. In a microschool where one student is reading at a third-grade level and another at a sixth-grade level in the same room, adaptive platforms reduce the teacher's differentiation burden significantly. Students can progress at their own pace while the teacher monitors dashboards and provides targeted support.

Time4Learning costs $29.95 per student per month for PreK-8 or $39.95 for high school, and includes auto-graded assessments. The auto-grading feature is a practical advantage for a microschool teacher managing multiple grade levels simultaneously — it handles the mechanical feedback loop and frees instructor time for direct instruction and discussion.

The Peaceful Press takes a different approach: literature-rich, nature-inspired printed materials organized around themes rather than grade levels. It requires more teacher facilitation than a digital platform but suits programs that prioritize discussion, outdoor time, and hands-on learning over screen-based instruction.

BJU Press offers a classical, faith-based curriculum with strong scope-and-sequence documentation. For families who want a clearly structured progression through each grade level with a Christian worldview integrated throughout, BJU Press is one of the more comprehensive options available. It is purchased per student per year and requires more direct teacher instruction than self-directed platforms.

These options are not mutually exclusive. Some microschools use an adaptive platform like Miacademy or Time4Learning as the core spine and supplement with Peaceful Press materials for read-alouds, projects, and science observations.

Choosing a curriculum that covers all six Section 26-1 branches while actually working for a multi-age group is one of the most consequential operational decisions you will make. The Illinois Micro-School & Pod Kit includes a curriculum comparison framework and a subject coverage mapping tool for Illinois founders.

Testing: Optional, But Worth Understanding

Illinois does not require microschool students to take any standardized tests. There is no state testing mandate for private schools, no annual assessment submission to any government agency, and no third-party evaluation requirement.

That said, many microschool operators use standardized assessments for two practical reasons: accountability to parents and documentation of student progress for potential transitions to public school, private school, or college applications.

Two options are commonly used:

Stanford 10 Online through Seton Testing Services — approximately $45 per student. The Stanford 10 is a norm-referenced assessment with a long track record and widely recognized results. Online administration means no testing center visit required. Results provide grade-equivalent and percentile scores in the major subject areas.

Iowa Assessments Form E — updated with 2024 norms, available through multiple testing providers. The Iowa Assessments are another well-regarded standardized test with strong research backing and detailed subscores. For families planning a re-entry to conventional schooling, Iowa Assessments results are typically well-understood by receiving schools.

How Microschool Operators Actually Assess Progress

The gap between "standardized test results" and day-to-day assessment is significant, and most microschool operators fill it with observation-based methods. Research shows that 71% of micro-schools prefer observation-based assessment over letter grades as their primary evaluation approach.

Observation-based assessment means the teacher is continuously noting what each student can demonstrate, where they are stuck, and what they are ready to tackle next. This can be documented through:

• Learning portfolios: Collections of student work samples, reflections, and projects organized over time
• Anecdotal records: Brief dated notes by the teacher after key learning moments or project completions
• Mastery checklists: Skill-by-skill tracking that records when a student demonstrates proficiency, rather than averaging quiz scores

For parents transitioning from conventional schools, this approach requires some reframing — but most find that a well-maintained portfolio tells them far more about their child's actual progress than a report card. For founders, observation-based systems also reduce the administrative overhead of formal grading while maintaining rigorous documentation.

The combination that works well for many Illinois microschools: observation-based day-to-day documentation as the primary system, with one standardized assessment annually for benchmarking and external credibility. You get the richness of portfolio documentation and the external validation of a norm-referenced score — without unnecessary administrative burden.

LMS Platforms for Documentation and Organization

As microschools grow beyond 5-6 students, keeping curriculum, assessments, and student records organized without a system becomes difficult. Several learning management systems are in common use:

Moodle is open-source and free, with extensive capability for organizing courses, assignments, and student records. The tradeoff is setup complexity — it requires technical configuration and ongoing maintenance.

Transparent Classroom is built specifically for Montessori programs and is well-suited to microschools using observation-based assessment. It allows teachers to record observations against a skills framework and generates progress reports for parent communication.

PearDeck and Edpuzzle are tools for interactive presentations and video-based instruction respectively — more useful as instructional tools within a curriculum than as full LMS platforms, but worth knowing for specific use cases.

The right infrastructure for an Illinois microschool covering Section 26-1 subjects is not necessarily complex — but it should be documented, systematic, and capable of demonstrating to parents that their children are genuinely covering the required branches. That documentation is also what protects you if questions ever arise.

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