πŸ‡ΊπŸ‡Έ Illinois Β· Grades 3-8 and high school

Illinois IAR & ISA practice, the way they'll be tested

Free, AI-generated Illinois IAR & ISA questions in the real test style - aligned to Illinois's standards, with answers - inside a safe, parent-managed study portal.

About the Illinois IAR & ISA

Illinois tests ELA and math in grades 3-8 with the Illinois Assessment of Readiness (IAR), written to the Illinois Learning Standards. Science is tested in grades 5 and 8 with the Illinois Science Assessment, and high school students take the ACT in grade 11, with PreACT tests in grades 9 and 10.

Which grades and subjects take the Illinois IAR & ISA

Illinois Assessment of Readiness (IAR), Illinois Science Assessment (ISA) and high school ACT, run by the Illinois State Board of Education (ISBE).

  • βœ“IAR English Language Arts/Literacy and Mathematics in grades 3-8
  • βœ“Illinois Science Assessment (ISA) in grades 5 and 8
  • βœ“Grade 11: the ACT with Writing (English, Math, Reading, Science and Writing). Grade 10: PreACT Secure. Grade 9: PreACT 9 Secure

Format and timing

The IAR is given online or on paper in a spring window (March to mid-April) and is not computer-adaptive, so every student at a grade sees the same form. Math is three units of 60 minutes each; ELA is two units of 75 minutes in grade 3 and 90 minutes in grades 4-8. The ISA has three sections, and from 2025-26 each section has a 90-minute limit. Illinois moved its high school test from the SAT to the ACT starting in spring 2025.

Question types

  • Multiple-choice and other selected-response questions
  • Constructed-response questions in math, where students explain or show their reasoning
  • The ELA Prose Constructed Response: a written essay based on the texts students have read

What the results are used for

IAR and ISA results are used to report student progress and for school accountability, not to decide whether a student graduates. In August 2025 ISBE approved new unified performance levels across its tests: Above Proficient, Proficient, Approaching Proficient and Below Proficient.

How LessonHQ helps with the Illinois IAR & ISA

Set Illinois in your profile and everything is written to Illinois's standards and test style.

Standards-aligned practice worksheets

Worksheets on any Illinois standard, at the right grade, with an answer key. Regenerate at an easier or harder level for small groups.

Make a worksheet β†’

Illinois IAR & ISA-style practice tests

Practice tests and quizzes that mix the question types students will see, with answer keys, ready to print or share.

Make a practice test β†’

Test-style study help for students

In the parent-managed study portal, students practice in the real test style with hints, while parents keep answers behind a PIN.

See the study portal β†’

For parents

The IAR's Prose Constructed Response asks children to read one or more texts and write an organized response with evidence, which is a step up from short answers. Regular practice writing a paragraph about something they have read helps most. The study portal generates IAR-style reading sets with a writing prompt and multi-step math with explanations, with answers kept behind your parent PIN.

For teachers

Use the test generator to make IAR-style practice: a paired-text reading set with a Prose Constructed Response prompt, or math tasks that ask students to justify their reasoning, aligned to the Illinois Learning Standards and with an answer key. For grade 11, build ACT-style English, math, reading and science practice.

What the Illinois IAR & ISA covers

Set by the Illinois State Board of Education (ISBE). LessonHQ practises every part.

βœ“IAR English Language Arts and Mathematics, grades 3-8
βœ“Illinois Science Assessment (ISA) in grades 5 and 8
βœ“High school: ACT with Writing in grade 11, PreACT in grades 9 and 10
Start Illinois IAR & ISA practice free β†’

Popular searches: IAR practice Β· Illinois Assessment of Readiness practice Β· IAR math practice Β· Illinois ACT practice

Other assessments

State Tests β†’SAT / ACT β†’Texas STAAR β†’Florida FAST & B.E.S.T. β†’New York State Tests & Regents β†’Massachusetts MCAS β†’California CAASPP β†’Pennsylvania PSSA & Keystone β†’Virginia SOL Tests β†’Tennessee TCAP β†’Indiana ILEARN & IREAD β†’Ohio's State Tests β†’Georgia Milestones β†’North Carolina EOG & EOC β†’

Sources

Checked against the Illinois State Board of Education (ISBE)'s own pages in October 2026. Testing dates and rules change, so always confirm this year's calendar with your school or the state.

Illinois IAR & ISA - FAQ

Is the Illinois Assessment of Readiness still used?
Yes. ISBE still uses the IAR for grades 3-8 ELA and math, with spring testing continuing in 2026-27. What changed recently is the high school test, which moved from the SAT to the ACT from spring 2025, and new performance level names approved in 2025.
How long is the IAR?
Math is three units of 60 minutes. ELA is two units, 75 minutes each in grade 3 and 90 minutes each in grades 4-8. Schools spread the units over several days.
Who is Illinois IAR & ISA for?
Illinois IAR & ISA is for Grades 3-8 and high school in Illinois. LessonHQ pitches every question at exactly that level.
What does the practice cover?
IAR English Language Arts and Mathematics, grades 3-8; Illinois Science Assessment (ISA) in grades 5 and 8; High school: ACT with Writing in grade 11, PreACT in grades 9 and 10. Every set comes with answers, and in the portal you can keep the answers locked behind a parent PIN.
Is it aligned to the real test?
Yes. Practice is written to Illinois's standards and the Illinois IAR & ISA question styles: multiple-choice and other selected-response questions; constructed-response questions in math, where students explain or show their reasoning; the ELA Prose Constructed Response: a written essay based on the texts students have read.
Can teachers use LessonHQ for Illinois IAR & ISA prep?
Yes. Teachers can generate Illinois IAR & ISA-style practice tests and standards-aligned worksheets with answer keys in about a minute, edit them, and export to Word, Google Docs or PDF.
Is it safe for my child?
The study portal is parent-managed: you create the profile, control the data, and set a "No Answers Mode" so your child gets hints, not copy-paste answers. Parent accounts are 18+, and children use PIN-protected profiles - no child email needed.
How much does it cost?
Start free - every family gets 8 free study sessions a month, no card needed. Student Plus ($4.99/mo) unlocks unlimited practice and covers up to 3 children on your account.