Illinois · Grades 3 to 8 · From the state testing portal

Illinois IAR math practice for spring 2027

The Illinois Assessment of Readiness tests math in three units, and every one of them stops at 60 minutes. The state’s coordinator manual calls the test strictly timed. That single fact shapes how an Illinois child should prepare: knowing the math is necessary, but so is finishing, and so is writing an explanation that a scorer can credit, because the state’s own scoring guidance says a right answer with no work shown will not get the top score point.

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In short

The Illinois Assessment of Readiness (IAR) is the Illinois State Board of Education’s math and ELA test for grades 3 to 8, taken on computer in three strictly timed 60-minute math units and scored from 650 to 850 in four levels. The spring 2027 online window is March 1 to April 16, 2027. Modern Age Coders prepares Illinois children for it live online, as a group batch or 1-on-1, in our Elementary Mathematics course.

Courses for Illinois students

Three courses matched to the Illinois Learning Standards

Each one practises the timed, explain-your-thinking style of the IAR from the first month.

Elementary Maths for Grades 1-5 course thumbnail

IIP / 01

Third to fifth grade

Times tables, fractions and volume, with no calculator in sight.

Open the syllabus →
Middle School Mathematics Mastery course thumbnail

IIP / 02

Middle school, grades 6 to 8

Ratios, rational numbers, equations and functions.

Open the syllabus →
Mental Maths for Kids course thumbnail

IIP / 03

Mental math

Speed and accuracy for the non-calculator units.

Open the syllabus →

Units and timing

How long is the IAR math test, and how is it split up?

Three units of 60 minutes each in every grade from 3 to 8. The time is fixed: the proctor script says each section is a 60 minute timed test and the proctor stops students when time is reached.

IAR mathematics units by grade (IAR Unit Testing Times and 2026 Test Coordinator Manual, Illinois testing portal, read 31 October 2026)
GradeUnit 1Unit 2Unit 3
3, 4 and 5Non-calculator, 60 minutesNon-calculator, 60 minutesNon-calculator, 60 minutes
6 and 7Non-calculator part, then calculator part, 60 minutes in totalCalculator, 60 minutesCalculator, 60 minutes
8Non-calculator, 60 minutesCalculator, 60 minutesCalculator, 60 minutes

Strictly timed means strictly

The 2026 Test Coordinator Manual states that the IAR ELA and math tests are “strictly timed, and no additional time may be permitted”, with the exception of a documented extended time accommodation.

So pacing is a skill we teach directly. A child who spends twelve minutes on one hard question in a 60-minute unit has borrowed that time from every question after it.

The grade 6 and 7 trap

In grades 6 and 7, unit 1 has a Part A without a calculator and a Part B with one, sharing the same 60 minutes. The proctor script warns students: “Once you start the calculator section, you cannot return to Part A.”

We practise the switch: finish and check Part A, decide, then move on. Leaving Part A half done to grab the calculator is a mistake a child only needs to make once in practice.

Sources: IAR Unit Testing Times and IAR Summative Resources, Illinois Support Page, read 31 October 2026. The ISBE website did not respond when we tried it. We have no connection with ISBE or its testing contractor.

Tools

Can you use a calculator on the IAR math test?

Not in grades 3 to 5. Grades 6 and 7 get a four-function calculator with square root and percentage keys in the calculator parts; grade 8 gets a scientific calculator.

IAR calculators, reference sheets and tools by grade (Math and ELA Tools guide, Test Coordinator Manual and ISBE Math Test Scoring Expectations, Illinois testing portal)
GradeCalculatorReference sheetOther tools
3None, except as an accommodationNone providedRuler
4None, except as an accommodationNone providedRuler and protractor
5None, except as an accommodationIllinois grade 5 sheetRuler and protractor
6 and 7Four-function with square root and percentage, calculator parts onlyIllinois grade sheetRuler and protractor
8Scientific, calculator units onlyIllinois grade 8 sheetRuler; protractor, tracing paper, reflection tools, straight edges and compasses optional

The practice-item reference sheet is different

ISBE’s scoring expectations document points out that the reference sheets inside the practice item sets are not the Illinois sheets used on the IAR. A grade 4 practice set shows a reference sheet, but the grade 4 IAR has none.

For a fourth grader that matters: perimeter and area formulas have to be known, not looked up. We drill them as facts in grades 3 and 4.

Built into the platform

The calculator sits in the TestNav toolbar during calculator units. Schools may also allow hand-held calculators that meet the policy, with memory cleared before and after testing.

Text-to-speech is embedded on all math tests, according to the proctor script, so a child who wants questions read aloud needs working headphones.

Written answers

How are IAR math constructed-response answers scored?

For the reasoning as well as the number. ISBE’s scoring expectations say the correct answer with no work shown or explanation provided will not receive the top score point.

  1. Our grade 5 problem. A garden bed is 3/4 of a yard wide and 2 2/3 yards long. What is its area? Explain how you found it.
  2. Answer A, which we would expect to fall short. “2 square yards. I used the calculator.” The number is right, but there is no work, and ISBE’s guidance says that simply stating that one used a calculator is not sufficient. In grade 5 there is no calculator anyway.
  3. Answer B, written to the guidance. “Area = width x length. 2 2/3 = 8/3. 3/4 x 8/3 = 24/12 = 2. The area is 2 square yards.” Each step is a separate, true equation, the mixed number is converted openly, and the answer carries its unit.
  4. Why we avoid run-on equations. ISBE gives the example “3+4=7, and 7+5= 12” as the right way and “3+4=7+5=12” as the wrong way, because the second line claims that 7 equals 12. Children write run-ons all the time in class; on the IAR it can cost a point.
  5. Every bullet answered. The guidance tells students that the entire question, including every bullet, must be addressed for full credit. We teach children to tick off each bullet in the question as they answer it.

The garden-bed problem and both answers are ours, written to illustrate ISBE’s public scoring expectations. They are not IAR items and we make no claim about how any real response would be scored.

Source: ISBE Math Test Scoring Expectations for Constructed Response Questions and Reference Sheets, read 31 October 2026.

What is reported

What does the IAR math test measure?

The Illinois Learning Standards for the grade, reported in four Areas of Readiness. The parent guide says the math tests focus on applying skills and concepts, multi-step problems that need abstract reasoning, and modeling real-world problems.

IAR mathematics Areas of Readiness, with examples from the 2026 Math ISR expected skills (Illinois testing portal, read 31 October 2026)
Area of ReadinessWhat it meansGrade 3 exampleGrade 6 example
Major ContentThe most important grade-level conceptsMultiplication and division within 100; area and multiplication; fractionsRatios and unit rates; dividing fractions by fractions; expressions and equations
Additional and Supporting ContentSupporting skills that strengthen the major workPlace value, perimeter, scaled graphsStatistical variability, distributions, area and surface area
Expressing Mathematical ReasoningExplaining thinking and why a solution makes senseEqual groups, data tables, properties of operationsVariable relationships, positive and negative numbers
Modeling and ApplicationSolving real-world problems with numbers, symbols or modelsOne-step measurement and estimation problemsPercentage, ratio and signed-number problems

Higher, Middle, Lower

Each Area of Readiness gets a gauge on the report pointing to Higher, Middle or Lower. The guide explains these compare the student with students who were proficient or approaching proficient.

A Lower on Expressing Mathematical Reasoning is the most fixable rating on the report. It usually means the math is there and the writing is not.

Item types

The parent guide says students also answered selected-response and fill-in-the-blank items, alongside the constructed responses. The Student Readiness Tool on the portal walks children through the TestNav tools and item types.

We use it once, early, so the platform is familiar; after that, lesson time goes to math.

Results

What are the IAR performance levels and cut scores for math?

Four levels on a scale from 650 to 850: Below Proficient, Approaching Proficient, Proficient and Above Proficient. Levels 3 and 4 mean the student has demonstrated readiness for the next grade.

IAR mathematics cut scores by grade (IAR Parent Score Report Interpretation Guide, Appendix A, updated May 2026)
GradeLevel 2 Approaching Proficient fromLevel 3 Proficient fromLevel 4 Above Proficient from
3705732781
4708740784
5709740782
6705742773
7712745781
8705745791

What the levels say

The parent guide’s wording is direct: students at levels 3 and 4 “were proficient or above proficient and have demonstrated readiness for the next grade level/course.” Level 1 starts at 650, the bottom of the scale.

The guide adds that a scale score of 800 on one form of the grade 8 test should mean the same as 800 on any other form, which is why the cut points are fixed by grade.

Reading a near miss

A grade 6 student on 738 is four points under Proficient. In our experience the quickest gains at that distance come from finishing every unit and writing complete explanations, not from new topics.

Reports reach families through the Family Portal, which, when we read it, said the PDF student reports would be available on August 10.

Source: IAR Parent Score Report Interpretation Guide, Illinois testing portal, read 31 October 2026 from the portal.

Spring 2027

When is the IAR test in 2027?

The online testing window for spring 2027 runs from March 1 to April 16, 2027. Paper testing, used only by students who need it, closes earlier, on April 2, 2027.

IAR key dates, spring 2027 (IAR Summative Resources, Illinois testing portal, read 31 October 2026)
EventDates
IAR spring 2027 testing window, onlineMarch 1, 2027 to April 16, 2027
IAR spring 2027 testing window, paperMarch 1, 2027 to April 2, 2027
Training administration liveDecember 22, 2026
Manuals due in districtsJanuary 11 to January 14, 2027

The manual says sections may be scheduled at any time on regular school days during the testing window, and all sections, including make-ups, must finish inside it. Because the window opens on March 1, a plan that starts after spring break is too late. Ask the school which week your child’s math units fall in.

Practice

IAR math practice: ten questions we wrote, grades 3 to 8

Ours, at grade level. The starred ones want a written explanation, like a constructed-response item; the rest want a number.

Original practice set (ours, not IAR items), with answers
GradeQuestionCalculator?Answer
3What is 8 x 7?No56
3Is 1/2 of a small pizza the same amount as 1/2 of a large pizza? Explain.*NoNo: the halves are of different wholes
4Find the perimeter of a rectangle 9 cm by 14 cm.No46 cm
4Write 0.7 as a fraction and as hundredths.No7/10 and 70/100
5What is 4.6 x 3?No13.8
5How many 1/3-cup scoops are in 4 cups? Show your work.*No12
6What is 15 percent of 80?Calculator part12
6Evaluate 3x² when x = 4.Non-calculator part48
7After 25 percent off, a jacket costs 48. Find the price before the sale and explain.*Calculator64
8Is (2, 7) a solution of y = 3x + 1? Explain.*EitherYes: 3 x 2 + 1 = 7

The official practice items for each grade, with their answer keys, are on the Practice Items page of the Illinois portal. The portal notes they let students experience sample items in an environment like the real test. We save them for the final weeks and teach with our own problems before that.

A plan

How to prepare for the IAR math test in eight weeks

Our plan, counted back from the start of the March 1 to April 16, 2027 window, so it begins in early January.

  1. Week 1: one timed unit. Sixty minutes of our own grade-level questions, to see both accuracy and how far the child gets.
  2. Weeks 2 and 3: Major Content. The grade’s most important concepts from the Areas of Readiness table.
  3. Week 4: explanations. Two constructed-response questions every lesson, written to ISBE’s scoring expectations: separate equations, labels and units, every bullet answered.
  4. Week 5: the calculator rule for the grade. No calculator at all for grades 3 to 5; the Part A to Part B switch for grades 6 and 7; scientific calculator fluency for grade 8.
  5. Week 6: pacing. Timed half-units, with a rule for when to move on from a hard question.
  6. Week 7: the official practice items. The grade’s set on the portal, plus the Student Readiness Tool if not done yet.
  7. Week 8: three units on three days. A full rehearsal at 60 minutes each, then a light week.

Two habits that earn points

One equation per line, and a final sentence that answers the question with a unit. Both come straight from ISBE’s guidance.

One habit that loses them

Running out of time with easy questions unanswered at the end of a unit. Pacing practice fixes this faster than anything else.

Grade by grade

The IAR math topics we put first, grade by grade

Our reading of the state’s Major Content statements for each grade.

Priorities by grade (expected skills from the 2026 Math ISR; priorities ours)
GradePut firstThen
3All the times-table facts to 10 x 10Area as multiplication and unit fractions
4Long multiplication and division with remaindersFraction equivalence and adding fractions
5Adding and subtracting unlike fractionsDecimal operations and volume
6Ratios and unit ratesDividing fractions and one-variable equations
7Operations with negative numbers and fractionsProportional relationships and probability
8Linear equations and functionsTransformations and the Pythagorean Theorem

For parents

Look at the Higher, Middle and Lower gauges on last year’s report, especially Expressing Mathematical Reasoning.

Ask the school for the week of the math units; the window is wide and schools choose.

For students

Watch the clock at 20 and 40 minutes. If you are behind, skip ahead and come back.

Write the answer as a sentence with its unit. It takes five seconds.

The catalogue

Math courses for Illinois families

From third-grade facts to algebra in eighth grade.

I

Elementary

Grades 3 to 5

IIP / E / 03

Abacus mental math

Number sense for younger children.

Open the syllabus
II

Middle school

Grades 6 to 8

IIP / M / 02

Math competitions

Contest problems for keen students.

Open the syllabus
III

Next

High school

How lessons run

Lessons set on Central Time for Illinois

Weekdays or weekends, flexible: choose your batch, or for a very personalised plan choose 1-on-1 at your convenience, weekend mornings or weekdays.

After school CT

Weekly lessons through the school year.

Weekends

Timed 60-minute units in February.

1-on-1

Explanation coaching, one answer at a time.

Timed units

Sixty minutes, practised until it feels normal.

Illinois standards

Lessons follow the grade’s Major Content.

Written reasoning

To ISBE’s scoring expectations.

Calculator rules

Part A and Part B practised in grades 6 and 7.

Official items late

The portal practice items, for rehearsal.

Two formats

A batch of 15 to 20 students, or private lessons.

Student work

Built by our students

Some of our students turn math into small programs; a few are on student labs.

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Fees

Fees

Monthly fees in US dollars and no long contract: Illinois families often start in January and stop once the April window closes.

Free first class

USD 0

no card required

  • A free first class
  • Bring last year’s IAR report
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Group batch

USD 100

a month, billed in US dollars

  • Fifteen to twenty students
  • One teacher all spring
  • Choose your batch
  • Monthly
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One to one

USD 150

a month, billed in US dollars

  • A private teacher
  • Timed to your school’s test week
  • Flexible times
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Illinois families ask

Illinois IAR math: questions from parents

When is the IAR test in 2027?

The Illinois testing portal lists the spring 2027 online window as March 1 to April 16, 2027, and paper testing from March 1 to April 2, 2027. Schools schedule their own units inside the window.

Is the IAR still called the IAR?

Yes. The official Illinois testing portal, which hosts the 2027 key dates, calls it the Illinois Assessment of Readiness. It covers ELA and math in grades 3 to 8.

How long is the IAR math test?

Three units of 60 minutes each in every grade from 3 to 8. The coordinator manual says the test is strictly timed and no additional time may be given beyond a documented extended time accommodation.

Is a calculator allowed on the IAR math?

Third, fourth and fifth graders have no calculator unless it is an accommodation. Grades 6 and 7 use a four-function calculator with square root and percentage in calculator parts, and grade 8 a scientific calculator.

What is a good score on the IAR math?

Level 3, Proficient, is the target the state treats as ready for the next grade. In grade 5 math, Proficient starts at 740 and Above Proficient at 782, on a scale from 650 to 850.

What are the four IAR levels?

Level 1 Below Proficient, Level 2 Approaching Proficient, Level 3 Proficient and Level 4 Above Proficient. The parent guide says levels 3 and 4 show readiness for the next grade level or course.

Does my child need to show work on the IAR math?

On constructed-response questions, yes. ISBE's scoring expectations say a correct answer with no work or explanation will not receive the top score point, and saying you used a calculator is not enough.

Is there a reference sheet on the IAR math test?

In grades 5 to 8 there is an Illinois reference sheet. Grades 3 and 4 have none, even though some practice sets show one, so those formulas need to be known.

Where can I find IAR math practice tests?

The Illinois portal's Practice Items page has items for each grade from 3 to 8 with answer keys, plus the Student Readiness Tool for the TestNav platform.

When are your classes?

Weekdays or weekends, flexible: choose your batch, or for a very personalised plan choose 1-on-1 at your convenience, weekend mornings or weekdays. Times are set on Central Time.

Are you connected with ISBE?

No. Modern Age Coders is a private online school and has no relationship with the Illinois State Board of Education, any district or the testing contractor. Our facts come from the state's public testing documents, each one named on this page.

Elsewhere on this site

Related pages

More for Illinois parents, by grade and by city.

Fourth grade math tutoring

No reference sheet, no calculator.

Sixth grade math tutoring

The first year with a calculator part.

Eighth grade math tutoring

Functions and the scientific calculator.

Common Core vs traditional math

Why explanations are graded.

Coding classes in Chicago

Our Chicago page.

Coding classes in Illinois

Our Illinois page.

Related pages in this guide

Part of the guide: US state math tests by state

State tests, grades 3 to 8

High school end-of-course and graduation tests

Standards behind the tests

More guides: US gifted and selective school tests · US math placement and college readiness tests · Homeschool and school math curricula guide · US math and coding competitions guide

Start here

Book a free first class

Share last year’s IAR report, or a photo of homework where your child had to explain an answer. Teacher and child rewrite it together, to the state’s scoring expectations, during that first lesson.

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