USGS / Y / 01
Reasoning and readiness
Patterns, shapes, amounts.
Open the syllabusUnited States · Kindergarten to grade 9 · Pillar guide
American families meet two quite different kinds of test. One kind arrives uninvited: a school letter saying that every second grader will sit a reasoning screener next month. The other kind is chosen: a twelve-year-old deciding whether to register for a specialized high school exam or a Catholic high school test. This page sets both side by side in the organisers’ own words, then points to our page on the one you face.
Teaching math and coding live since 2020 · 10,000+ students · ages 6 to 67
The short answer
US gifted programs usually screen with an ability test: the CogAT (Riverside Insights), NNAT3 or OLSAT 8 (Pearson), sometimes alongside the Iowa Assessments; NYC Gifted and Talented uses no test at all. Selective high schools use entrance tests: the SHSAT, Hunter's own exam, MAP Growth in Boston, the HSPT, TACHS, ISEE or SSAT. Modern Age Coders teaches the reasoning and math underneath them live online, in a batch or 1-on-1.
Where we can help
One for young children facing a screener, one for middle schoolers aiming at an entrance test, and one that grows problem solving at any age in between.

USGS / 01
Patterns, shapes and amounts through play and talk; no imitation test items.
Open the syllabus →
USGS / 02
Middle school math without a calculator, also useful for Hunter and Boston applicants.
Open the syllabus →
USGS / 03
Breaking a puzzle into steps, testing a rule and explaining it.
Open the syllabus →All tests
Thirteen tests and processes cover most of what a US family meets between kindergarten and grade 9: four screening tests, two district processes, and seven routes into selective or private high schools.
| Test or process | Publisher or run by | Who takes it | What it measures, in the organiser's words | Format as published |
|---|---|---|---|---|
| CogAT (Cognitive Abilities Test) | Riverside Insights | Kindergarten to grade 12; many districts screen in grade 2 | "measures verbal, quantitative, and nonverbal reasoning" | Three batteries; the Screening Form takes "approximately 30 minutes" |
| NNAT3 (Naglieri Nonverbal Ability Test) | Pearson | Kindergarten to grade 12 | "a nonverbal measure of general ability" | 30 minutes, online or paper, group-administered; pictorial directions |
| OLSAT 8 (Otis-Lennon School Ability Test) | Pearson | Grades K to 12 on paper, grades 2 to 12 online | "verbal, nonverbal, and quantitative cognitive abilities" | Single form with seven levels; untimed, maximum 75 minutes |
| Iowa Assessments | Riverside Insights | Grades K to 12 | Achievement: "what students have learned" | Equivalent Forms E, F and G; complete, core or survey batteries |
| NYC Gifted and Talented | NYC Public Schools | Entry to kindergarten to grade 4 | No admissions test: pre-K teacher evaluation or interview, or report card grades | Online application; kindergarten window December 9, 2026 to January 22, 2027 |
| District G&T identification | Each school district | Often every child in one grade, commonly grade 2 | "Multiple criteria are used" (Charlotte-Mecklenburg) | An ability test plus teacher, parent and classroom evidence |
| SHSAT | NYC Public Schools | NYC residents in grade 8, or first-time grade 9 | "the sole factor" for the eight testing specialized high schools | 50 questions per section, 180 minutes standard time, computer-adaptive from fall 2026 |
| Hunter College High School entrance exam | Hunter College Campus Schools | Students currently in grade 6, for grade 7 entry | Reading comprehension, mathematics and a writing assignment | Three hours; 30 multiple-choice math questions; no calculator; January 27, 2027 |
| Boston exam schools | Boston Public Schools | Boston residents entering grade 6, 8 or 9 in September 2026 | A composite "30% on MAP Growth and 70% GPA" | MAP Growth (NWEA) in reading and math, January 2027 |
| HSPT (High School Placement Test) | Scholastic Testing Service | Grade 8, for grade 9 placement | Verbal, quantitative, reading, mathematics and language skills | Five subtests (math 64 items, quantitative 52); no calculator |
| TACHS | Riverside Insights with three New York dioceses | Grade 8 in 2026 to 2027 | "academic achievement in reading, written expression, and mathematics, along with general reasoning skills" | Online at home, about 2 hours and 10 minutes, 6 timed subtests, built-in four-function calculator |
| ISEE | E3n, through admission.org | Students applying to grades 2 to 12 | Verbal and quantitative reasoning, reading comprehension, mathematics achievement, unscored essay | Online, paper or at home; Middle and Upper Level 2 hours 40 minutes plus two breaks |
| SSAT | E3n, through admission.org | Students currently in grades 3 to 11 | "verbal, math, and reading skills" plus a non-scored writing sample | "virtually unspeeded"; paper, SSAT at Home or a Prometric center |
Sources: Riverside Insights CogAT and Iowa Assessments brochures; Pearson’s NNAT3 and OLSAT 8 product pages; NYC Public Schools Gifted and Talented and SHSAT pages; Hunter College Campus Schools admissions; Boston Public Schools exam schools; Scholastic Testing Service HSPT pages and Interpretive Manual; the TACHS Student Handbook, Parent Guide and FAQ; ISEE and SSAT pages at admission.org. Read raw between 31 October and 1 November 2026. Modern Age Coders is not connected with any publisher, school system, diocese or school named here.
Gifted screening
Most public districts pick one ability test, give it to every child in one grade, and treat the score as one piece of a larger picture. The four names below cover nearly every district letter, and two pages explain the processes around them.
If the letter names the Cognitive Abilities Test, our CogAT reasoning and readiness page walks through its verbal, quantitative and figural batteries and the way four districts read the results, with paper-folding and sorting games for ages 6 to 9.
A child who is still learning English often meets the Naglieri test instead. The NNAT3 guide explains why a picture-only test with pictorial directions suits mixed-language classrooms, and teaches children to track what moves and what stays fixed in a design.
Connecticut and California districts are among those that still give the Otis-Lennon. Our OLSAT 8 page focuses on the listening and sequencing habits a young child needs when directions are read aloud once.
The Iowa Assessments math page is the odd one out: it covers an achievement test, so it teaches real grade 1 to 5 math, from reading a bar graph to subtracting across zeros, rather than reasoning play.
For families whose district letter names no test at all, or names several, the gifted and talented test prep guide lays out the usual sequence from universal screening to a placement team, and why a single score rarely decides anything.
New York City is the exception that confuses everyone. Its NYC Gifted and Talented guide covers the 2027 application windows, how a report card grade converts to the 1 to 4 scale, and what kindergarten teachers look for, because the city no longer tests at all.
| Grade | What some districts do | Example from a published district page |
|---|---|---|
| Kindergarten | NYC families apply for G&T entry; no test | NYC Public Schools: kindergarten window December 9, 2026 to January 22, 2027 |
| Grade 1 | A nonverbal screener for every child | Fort Worth ISD: "universal screener for all first graders" (NNAT3) |
| Grade 2 | The most common universal screening year | San Ramon Valley (CogAT), Edmonds (NNAT3), Charlotte-Mecklenburg (CogAT with i-Ready) |
| Grade 3 | A second chance, or the first screen in some towns | Darien Public Schools: the OLSAT in "grades 3 and 5" |
| Grades 1 to 4 | NYC G&T entry by report card | Grades 1 to 4 window April 19 to May 7, 2027 |
| Grade 6 | A later screen for middle school services | Edmonds School District screens grade 6 with the NNAT3 |
New York City has no G&T test. The city’s Gifted and Talented page says the programs "offer accelerated instruction" to eligible elementary students, and describes eligibility by pre-K teacher evaluation, by interview after which "early childhood education experts nominate eligible applicants", or, for grades 1 to 4, by report card grades "of a 3 or 4, or the equivalent". It mentions no admissions test anywhere. A family in New York who is offered a paid G&T test course should know that no such test exists in the current process.
Prep or not
Not by drilling. Several districts and publishers say in writing that they discourage commercial preparation, and their reasons are worth reading before anyone spends money. What does help is a calm child who has seen the format once and who reasons, counts and builds for fun.
| Organiser | Test | What they say |
|---|---|---|
| San Ramon Valley Unified School District, California | CogAT | "Our district does not recommend any materials for CogAT preparation." Students are encouraged toward "minimal test preparation". |
| Edmonds School District, Washington | NNAT3 | "excessive preparation for the NNAT isn't recommended"; asked whether a child should study first, the district answers "No". |
| Darien Public Schools, Connecticut | OLSAT | "No one score on any one measure determines placement." |
| Hunter College High School, New York | Entrance exam | The school "does not endorse any test preparation service or agency". |
| Riverside Insights and three dioceses | TACHS | Riverside Insights, with the dioceses, "does not encourage or endorse coaching or tutoring programs", and "Official TACHS practice tests are not published or provided". |
| Scholastic Testing Service | HSPT | Advises families to "avoid expensive preparation materials" and to trust a "well-rounded education". |
A reasoning screener is meant to show how a child thinks on an ordinary morning. Rehearsing look-alike puzzles can lift the score without changing the thinking, and a child may then land in a class paced beyond them.
Outside scores are often refused too. Charlotte-Mecklenburg says private testing is not accepted for gifted identification, and St. Louis Public Schools says assessments from other districts or independent examiners are not accepted. Paying for a private sitting rarely buys a second route in.
Familiarity with the format, once: the district’s own sample sheet, or the publisher’s free family guide, so that the screen, the pictures or the read-aloud directions are not a surprise.
Broad reasoning, number sense and spatial play, for months rather than days: sorting objects and saying why, building and folding, noticing patterns on a calendar, splitting numbers into parts. These habits help in class whether or not a program place follows, which is why our young-learner lessons are built on them and never on copied items.
Exam schools
It depends on the city and the kind of school. Public exam schools in New York and Boston run their own processes; Catholic high schools usually use the HSPT, or the TACHS in the New York dioceses; independent schools ask for the ISEE or SSAT. Six pages here cover them.
Eighth graders in the five boroughs who want Stuyvesant, Bronx Science, Brooklyn Tech or the other testing schools should start with SHSAT math prep and tutoring, which covers the move to a computer-adaptive format in fall 2026 and what that means for pacing and skipping.
Hunter College High School takes students only at grade 7, through an exam it writes itself. Our Hunter entrance exam math page is for sixth graders, and works on five-choice elimination and calculator-free pattern spotting before the January 27, 2027 sitting.
Boston is different again: no Boston-written exam, but a composite of a MAP Growth score and grades. The Boston exam schools math guide explains that formula and uses weighted averages as real math practice.
Many Catholic high schools outside New York use the Scholastic Testing Service battery. HSPT math prep concentrates on its two number subtests, quantitative skills and mathematics, with number series and quantity comparisons.
Families applying to Catholic high schools in Manhattan, the Bronx, Staten Island, Brooklyn, Queens or Long Island meet the TACHS instead. Our TACHS math page covers the at-home online sitting and when the new built-in calculator is worth using.
Independent day and boarding schools ask for one of two tests from the same nonprofit. The ISEE and SSAT math prep page takes each level in turn, with number sense and comparison strategy for both.
| Test | Entry grade | Calculator | Key date published |
|---|---|---|---|
| SHSAT | Grade 9 (or grade 10 from a first-time grade 9 sitting) | Not permitted | Register by October 30, 2026 in MySchools |
| Hunter College High School | Grade 7 only | Not permitted | Exam on January 27, 2027 |
| Boston exam schools | Grades 7 and 9 (O'Bryant also takes a few in grade 10) | See NWEA's MAP Growth guidance | MAP Growth in school January 11 to 15, 2027 |
| HSPT | Grade 9 | Not permitted | Set by each high school; STS runs no national test day |
| TACHS | Grade 9 | A basic four-function calculator inside the platform, new in 2026 | November 6, 2026 (Archdiocese of New York) and November 7, 2026 |
| ISEE and SSAT | Grades 2 to 12 (ISEE), grades 3 to 11 sit the SSAT | See the organiser's page | Fall, winter and spring testing seasons for the ISEE; see admission.org |
One surprise for parents: NYC Public Schools says the SHSAT "is not used to determine admissions to LaGuardia High School". Another: the Hunter, SHSAT and HSPT math sections allow no calculator, so accurate mental arithmetic matters more than any trick.
Advanced programs
Talent searches, online schools and acceleration policies serve students who need more than their grade offers.
Duke’s provost notes that TIP and its Academic Talent Search were "permanently closed" in 2020. Our Duke TIP alternatives page compares the university programs families now use, such as Northwestern’s Center for Talent Development, which says "No test scores or portfolio materials needed to enroll." at its open tier.
Stanford Online High School serves students in grades 7 to 12 and states that "Admission to Stanford OHS is competitive". Our Stanford OHS math page looks at its proof-centred courses and the January 7, 2027 deadline.
Texas now enrolls sixth graders in the top 40 percent on the Grade 5 Math STAAR in an advanced track automatically. The accelerated math program page maps what compacted math squeezes together, grade 7 idea by grade 8 idea.
How to choose
Start from the decision, not the test. Work out who decides the place your child wants, read that body’s own page, and only then pick a member page here. Six steps, then one worked example of ours.
Picture a family in Queens with a first grader and a seventh grader. For the younger child, steps 1 and 2 lead to the NYC Gifted and Talented page. Step 4 settles it: no test. The grades 1 to 4 window opens on April 19, 2027 and eligibility rests on report card grades, so the job is good classroom work and a calm application, not a prep course.
For the older child, step 1 gives two kinds of school. A specialized high school means the SHSAT in grade 8, in fall 2027, under NYC Public Schools. A Catholic high school in the Diocese of Brooklyn/Queens means the TACHS, also in grade 8. Both tests include calculator-light math, so a year of strong middle school math serves both, and the family can decide on registrations a year from now.
The same household met three processes and only two of them were tests. The family read the organisers’ pages first, so nobody spent a winter drilling a six-year-old for an exam that does not exist.
Thinking, not items
Puzzles that grow a real habit, and look nothing like a test page. Here are two calendar warm-ups we wrote, one for ages 7 to 9 and one for middle schoolers, with the reasoning written out.
Question. The 3rd of a month is a Tuesday. What day of the week is the 24th?
Talking it through. A week is 7 days, so every 7 days you land on Tuesday again: the 10th, the 17th and the 24th. Three jumps of 7 is 21, and 3 + 21 = 24. The 24th is a Tuesday. Saying "it repeats every seven" is the rule; check it on a real calendar.
Question. Today is a Wednesday. What day of the week will it be in 100 days?
Talking it through. Whole weeks change nothing, so only the remainder after dividing by 7 matters. 100 = 14 x 7 + 2, so after 98 days it is Wednesday again, and 2 more days gives Friday. Same idea as warm-up 1, now as division with remainders.
Grade by grade
Our map, built from the grades each organiser publishes. Your district may differ.
| Grade | What may come up |
|---|---|
| Kindergarten | NYC G&T application, decided without a test |
| Grades 1 to 3 | CogAT, NNAT3 or OLSAT 8 screening; Iowa in some states; ISEE Primary for grade 2 entry |
| Grades 4 to 6 | Later screens; Hunter eligibility from grade 5 state tests; Boston applications |
| Grade 7 | Hunter entry; SSAT and ISEE; Boston grade 7 entry |
| Grade 8 | SHSAT, HSPT and TACHS for grade 9 places |
Most children meet one or two of these, not thirteen. Find yours and set the rest aside.
Ask which test, who runs it and when. Then read that organiser’s page with a parent.
The catalogue
Live courses arranged by age, so a family can carry on after a screening or an entrance test with the same teachers.
USGS / Y / 01
Patterns, shapes, amounts.
Open the syllabusUSGS / Y / 02
Concrete, playful number.
Open the syllabusUSGS / Y / 03
Number sense, not tricks.
Open the syllabusUSGS / M / 01
Calculator-free middle school math.
Open the syllabusUSGS / M / 02
Grades 6 to 8 in depth.
Open the syllabusUSGS / M / 03
Contest problems, explained.
Open the syllabusUSGS / T / 01
Rules, steps, checks.
Open the syllabusUSGS / T / 02
Logic you can watch run.
Open the syllabusUSGS / T / 03
Ready for Algebra I.
Open the syllabusHow lessons run
Weekdays or weekends, flexible: choose your batch, or for a very personalised plan choose 1-on-1 at your convenience, weekend mornings or weekdays.
Weekdays
After-school sessions sized to the child’s age.
Weekends
Longer problem sessions for middle schoolers.
1-on-1
One teacher, one plan, one child.
We read your test’s own page with you.
Written by us, never lifted from a publisher.
Students say why before they answer.
Play for six-year-olds, math for eighth graders.
No score, place or program promises.
Groups of fifteen to twenty, or one to one.
Student work
Puzzles, games and first programs from children in our classes. See more on student labs.

AI and ML
An AI nutrition coach that reads what you eat and works you toward a target.

AI and ML
A chatbot that answers mathematics and programming questions, built and deployed by a student.

AI and ML
An assistant that helps a young person recognise unsafe situations online.

Web app
A weather forecasting site with live conditions for any location.
Fees
Whichever test sits ahead, lessons are paid month by month with no long commitment, so a family can start well before a deadline and stop when it has passed.
Free first class
USD 0
no card required
Group batch
USD 100
a month, billed in US dollars
One to one
USD 150
a month, billed in US dollars
What families say
Parents in their own words, copied from Google.
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Questions from families
Most US districts use one ability test for screening, usually the CogAT from Riverside Insights or the NNAT3 or OLSAT 8 from Pearson, sometimes with the Iowa Assessments. The score is then weighed with teacher, parent and classroom evidence. Your district's own page names its test.
All three sample reasoning rather than school learning. The CogAT has verbal, quantitative and nonverbal batteries; the NNAT3 is entirely nonverbal, with pictorial directions; the OLSAT 8 covers verbal, nonverbal and quantitative abilities and is untimed up to 75 minutes.
No. NYC Public Schools decides kindergarten eligibility through pre-K teacher evaluations or interviews, and grades 1 to 4 eligibility through report card grades of 3 or 4 or the equivalent. Its Gifted and Talented page describes no admissions test.
You can make a child comfortable with the format and grow reasoning through play, but drilling look-alike items is not real preparation. San Ramon Valley Unified recommends no CogAT materials, and Edmonds says excessive NNAT preparation is not recommended.
Grade 2 is the most common universal screening year, used by San Ramon Valley, Edmonds and Charlotte-Mecklenburg among others. Fort Worth screens grade 1, and Darien screens grades 3 and 5.
The SHSAT, taken in grade 8 or as a first-time ninth grader. NYC Public Schools calls it the sole factor for the eight testing specialized high schools, and it becomes computer-adaptive from fall 2026. LaGuardia High School does not use it.
The HSPT and TACHS are used by Catholic high schools, with the TACHS in the New York dioceses. The ISEE and SSAT are used by independent day and boarding schools and are now both offered through admission.org. Each covers reading, math and reasoning in its own format.
Not on the SHSAT, the Hunter exam or the HSPT math subtests. The TACHS gives a basic four-function calculator inside its platform from 2026, and personal calculators are not allowed. For the ISEE and SSAT, check the organiser's current rules.
Duke's provost office says TIP and its Academic Talent Search closed permanently in 2020, and Duke's summer work continues through Duke Pre-College. Families now look at programs such as Northwestern's Center for Talent Development.
Weekdays or weekends, flexible: choose your batch, or for a very personalised plan choose 1-on-1 at your convenience, weekend mornings or weekdays.
No. Modern Age Coders is an independent online school, not linked with Riverside Insights, Pearson, NYC Public Schools, Hunter, Boston Public Schools, STS, the dioceses or E3n. We quote and link their pages, and we cannot promise any score, gifted placement or school place.
Elsewhere on this site
Other pages for US families weighing tests and stretch work.
The NWEA test inside the Boston formula.
When a school decides who skips ahead.
An above-grade test some programs accept.
Stretch for strong problem solvers.
A gentle first contest for young children.
Building a sequence outside school.
More guides: US state math tests by state · US math placement and college readiness tests · Homeschool and school math curricula guide · US math and coding competitions guide
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Tell us your child’s grade and the test or school named in your letter. We will check the organiser’s page with you and suggest a sensible plan, or say plainly that none is needed.
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