AI-generated questions aligned to Illinois Learning Standards (CCSS-aligned) standards. Pick your grade and subject — no signup. Math, Science, English/RLA.
Pick your child's grade to start. No signup required.
Select your child's grade level. We show which subjects are available for that grade on the IAR.
Pick Math, English/RLA, or Science. Every question is aligned to Illinois Learning Standards (CCSS-aligned) standards at the right difficulty.
Answer questions in the real IAR format. Every answer gets a detailed explanation so your child learns from mistakes.
Every question maps to specific Illinois Learning Standards (CCSS-aligned) standards and reporting categories. Not generic — built for IAR.
Questions are AI-generated, then verified by a second AI pass. No wrong answers in your answer key.
Wrong answers target the exact mistakes students make. Your child learns WHY they got it wrong.
IAR prep is just one feature. iMasterly teaches 15+ subjects with AI-personalized curriculum.
Questions match the real IAR's Depth of Knowledge distribution for authentic practice.
AI generates fresh, unique questions every session. Your child never sees the same test twice.
The Illinois Assessment of Readiness (IAR) is Illinois's statewide standardized assessment for students in grades 3-8. The IAR measures student mastery of the Illinois Learning Standards, which incorporate the Common Core State Standards with Illinois-specific additions. The IAR evolved from the PARCC assessment — Illinois is one of the last states still using a PARCC-derived test. In 2025-2026, Illinois made major changes to the IAR's scoring system, reducing proficiency levels from five to four and recalibrating cut scores.
2026 online testing window: March 2 - April 17, 2026. Paper testing window: March 2 - April 3, 2026. Science (ISA) is administered separately.
| Grade | Subjects Tested |
|---|---|
| Grade 3 | ELA and Mathematics |
| Grade 4 | ELA and Mathematics |
| Grade 5 | ELA, Mathematics, and Science (Illinois Science Assessment) |
| Grade 6 | ELA and Mathematics |
| Grade 7 | ELA and Mathematics |
| Grade 8 | ELA, Mathematics, and Science (Illinois Science Assessment) |
Illinois uses the following performance levels. 'At Proficiency' is the target. Note: Illinois changed from 5 levels to 4 levels in 2025-2026, so prior year comparisons are not apples-to-apples.
Student does not demonstrate adequate understanding of grade-level standards.
Student demonstrates partial understanding but has not yet reached proficiency.
Student demonstrates grade-level mastery of Illinois Learning Standards.
Student demonstrates advanced mastery beyond grade-level expectations.
The IAR is a fixed-form computer-based test — every student in the same grade sees the same questions. Paper testing is available as an accommodation.
Mathematics is split across 3 separate testing units. Your child will have three distinct math testing sessions on different days.
English Language Arts includes 2 units covering reading comprehension and writing. Includes prose constructed response (essay) questions.
Includes selected response, constructed response, technology-enhanced items, and prose constructed response (extended writing). The writing component is embedded in the ELA test.
Major changes for 2025-2026: Illinois reduced proficiency levels from 5 to 4 (eliminating the old 'Approaches Expectations' and 'Meets Expectations' in favor of a simpler system). Cut scores were lowered for ELA and Math but raised for Science. This means more students may appear 'proficient' compared to last year, but the bar has actually been recalibrated, not lowered. Previously, Illinois had the 4th-highest proficiency bar in the nation.
Illinois just underwent the most significant scoring overhaul in IAR history (5 levels to 4 levels) — one of the most recent redesigns of any state test in the country.
The IAR is one of the last PARCC-derived assessments still in use. Most former PARCC states have moved to completely different tests.
Math is split into 3 testing units — more sessions than most state math assessments.
Includes prose constructed response questions where students write extended essays as part of ELA — this is more rigorous than many state tests.
Illinois previously had the 4th-highest proficiency bar in the nation before the 2025-2026 recalibration.
If you're comparing your child's 2025-2026 IAR scores to previous years, the proficiency levels have changed completely. A score that was 'Approaches Expectations' last year might now be 'Approaching Proficiency' or 'At Proficiency' depending on the new cut scores. Don't panic or celebrate until you understand the new scale.
Math is tested in 3 separate units on different days. Your child needs to maintain focus across multiple testing sessions — practice stamina, not just content.
The ELA test includes real essay writing (prose constructed response). Your child should practice writing organized paragraphs with evidence from text, not just reading comprehension.
Science is tested separately via the Illinois Science Assessment (ISA) in grades 5 and 8. Don't forget to prepare for this in addition to the IAR.
Paper testing is available but only during a shorter window (March 2 - April 3). If your child needs this accommodation, coordinate with the school early.
The IAR is Illinois's standardized assessment for grades 3-8. Students are tested in Math and English/RLA every year, and Science in grades 5 and 8.
Our AI generates questions aligned to Illinois Learning Standards (CCSS-aligned) standards at the exact difficulty and format of the real IAR. Every question is verified by a second AI for accuracy.
Yes. iMasterly is 100% free. Full access to IAR practice, AI tutoring, and personalized curriculum.
iMasterly generates unlimited AI-powered practice questions for each grade and subject. Each session is unique.
Free. Unlimited AI-generated practice for every grade.