Your child's MAP or i-Ready math score, explained

Short answer. The score shows where your child is on a long scale, like a mark on a growth chart. It is not a grade and not a percent correct. A small drop usually means nothing, because scores move up and down a little from one test to the next. On i-Ready, "One Grade Level Below" in the fall is where a typical child starts the year. The score does not tell you which skills your child is missing. Finding those skills is the part you can act on.
The report shows three numbers. Each one tells you something different.
- The score: where your child is on the scale. MAP scores (called RIT scores) run from about 100 to 350. i-Ready scores run from 100 to 800. A score is not a percent correct. If the score goes up during the year, your child learned.
- The percentile: how your child compares with other children in the same grade. The 70th percentile means your child scored higher than 70 out of 100 children in the same grade across the country, tested at the same time of year. It shows a rank, not how much your child knows.
- The level: a line that someone chose. Labels such as "On grade level" or "One Grade Level Below" come from the test company or from your state. Each one draws its own line, so the label and the percentile do not always agree.
A small drop is usually not a real drop
- Every score has a margin of error. On MAP it is about 3 points. NWEA, the company that makes MAP, says a change of one or two points "may fall within the margin of error". On i-Ready the margin is at least 6 points.
- NWEA suggests a retest only after a big drop: more than about 10 points, especially if your child finished the test much faster than usual.
- Summer counts. Over the summer, MAP math scores drop by 2 to 7 points on average. Math drops more than reading. Some children lose more than that, while others gain.
- A rushed test gives a low score. When a child clicks through quickly, the score goes down. NWEA says this "can even result in the appearance of negative growth over time".
On i-Ready, "One Grade Level Below" in the fall is normal
i-Ready (its new name is i-Ready Inform) puts every child into one of five levels:
- Mid or Above Grade Level
- Early On Grade Level
- One Grade Level Below: where a child with an average score lands in the fall
- Two Grade Levels Below
- Three or More Grade Levels Below
The levels are fixed lines for what each grade is expected to know. They do not rank your child against other children. Curriculum Associates, the company that makes i-Ready, says a child at One Grade Level Below at the start of the year is "performing consistently with students who have just begun their academic year". We checked this against the company's own score tables. In every grade from 1st to 8th, the national average fall score is inside One Grade Level Below.
What is a typical score for my child's grade?
These are the national averages for each grade.
MAP Growth math: average RIT score by grade (2025 norms)
| Grade | Fall | Winter | Spring | |---|---|---|---| | K | 141 | 151 | 158 | | 1 | 159 | 168 | 175 | | 2 | 173 | 181 | 187 | | 3 | 184 | 193 | 199 | | 4 | 197 | 204 | 210 | | 5 | 206 | 212 | 216 | | 6 | 210 | 216 | 220 | | 7 | 217 | 221 | 224 | | 8 | 222 | 226 | 229 |
Source: NWEA, MAP Growth 2025 norms quick reference (October 2025). These are national averages.
i-Ready math: national average score by grade (2026-27)
| Grade | Fall | Winter | Spring | |---|---|---|---| | K | 339 | 358 | 374 | | 1 | 372 | 390 | 404 | | 2 | 399 | 414 | 428 | | 3 | 424 | 439 | 450 | | 4 | 445 | 457 | 469 | | 5 | 463 | 472 | 482 | | 6 | 475 | 484 | 493 | | 7 | 487 | 495 | 500 | | 8 | 495 | 501 | 505 |
Source: Curriculum Associates, i-Ready national norms tables, grades K-8 (June 2026). These are the 50th percentile scores.
What to do with the score
- Look at the line, not one test. Schools test in fall, winter and spring so you can see a trend. One score alone tells you the least.
- Ask the teacher which areas were weak. Both tests also score parts of math. MAP calls them "instructional areas", such as geometry or measurement and data. i-Ready calls them domains. The overall score hides them.
- Find the exact skill. Even one area is broad: "fractions" has dozens of skills. Often the trouble is one skill from an earlier grade that later math builds on. That one skill is what your child can practice at home.
Turn the score into something actionable for your child
Level Up starts where the school test stops. The assessment adapts to your child's answers and goes back into earlier grades until it finds the exact skills your child is missing. The report names those skills. Then daily practice works through them in the right order, about 30 minutes a day, five days a week.
For most children we assess, catching up takes months, not years. Children master about 30 missing skills a month, and most can close their gaps from earlier grades within 6 months. A sample student practiced about 15 hours over six weeks one summer, and the MAP math score went up 18 percentile points, from the 69th to the 87th. One student is an example, not a promise, and results can vary.
Start with the 7-day free trial. Your child takes the assessment on a computer or tablet in about 30 to 40 minutes, you get the report, and practice starts right away. Nothing is charged today.
*Sources: NWEA blog and help pages (RIT scale, percentiles, standard error of measurement, negative growth, rapid guessing, typical summer slide, the Family report), 2025-2026; NWEA MAP Growth 2025 norms quick reference; Curriculum Associates i-Ready placement tables 2026-27, five-level FAQ (October 2026) and national norms tables (June 2026); National Center on Intensive Intervention, i-Ready screening tool chart (standard error of measurement). Level Up figures: our own practice and assessment data (how we measure the pace).*