The 30-second version
HISD identifies gifted students using a 40-point matrix combining cognitive tests (CogAT/NNAT), achievement tests (Iowa Assessments for 3rd grade), portfolio/performance, and behavior indicators. A child needs roughly 28 of 40 points for Vanguard placement, though competitive Vanguard magnet schools require higher scores in practice.
For 2026, testing runs February 23 through March 27. Registration opened January 8 and closes February 12. Results release April 24. Vanguard offer decisions are due by May 15.
Critical: register on time
Late registration is not accepted. If you miss February 12, your child has to wait until the next testing cycle. Set a calendar reminder for January 8, 2026 when registration opens.
What's actually on the test, by grade
HISD uses different tests at different grades. Understanding which test your child will take is the foundation of any preparation.
Kindergarten
| Test | NNAT3 (Naglieri Nonverbal Ability Test) |
|---|---|
| Format | Nonverbal figural matrices — no reading required |
| Length | ~30 minutes |
| Items | ~48 multiple-choice items |
| What it measures | Pattern recognition, spatial reasoning, abstract thinking |
The NNAT3 is intentionally nonverbal so it doesn't penalize children who haven't learned to read or whose first language isn't English. Your kindergartner sees a grid of shapes with one missing piece, and picks which option completes the pattern.
First grade
First graders take the NNAT3 plus an early form of CogAT. Total testing time is about 60 minutes, split across two sittings.
Third grade (the big one)
| Cognitive test | CogAT Form 8 — Verbal, Nonverbal, Quantitative batteries |
|---|---|
| Achievement test | Iowa Assessments — Reading and Math subtests |
| Total length | ~3 hours across multiple sittings |
| What it measures | Reasoning across language, math, and figural; plus on-grade academic mastery |
Third grade is the most important testing year because the full CogAT + Iowa combination feeds the 40-point matrix completely. Children identified in 3rd grade get the most years of Vanguard programming.
Fifth grade
Fifth grade is a re-screening window. Students who weren't identified earlier can be retested using NNAT3 plus CogAT screening. About 90 minutes total.
The 40-point identification matrix
HISD's GT identification rubric assigns points across four pillars:
| Pillar | Max | What feeds it |
|---|---|---|
| Cognitive (CogAT / NNAT) | 16 | Test percentile rank converts to a 0–16 score |
| Achievement (Iowa) | 16 | Iowa subtest percentiles — only for 3rd grade |
| Performance / Portfolio | 4 | Work samples, awards, observations |
| Behavior / Interest indicators | 4 | Teacher and parent surveys (typically Renzulli Scale) |
Total possible: 40 points. Typical threshold for Vanguard placement is around 28, though specific Vanguard magnet schools — Carnegie Vanguard, T.H. Rogers, River Oaks Elementary — set higher de facto cutoffs based on applicant pool.
For kindergartners, the achievement pillar is zero (no Iowa test at that grade) so a kindergarten matrix max is 24 points, and the relative threshold adjusts.
Try real practice questions, right now
Below are example items in the exact format your child will see. These are Cusp-authored items in the style of CogAT and NNAT — no proprietary test items are reproduced. Click an answer to see if it's right and why.
Get 50 more practice questions, free
The full Cusp GT Vanguard Prep track is 20 days of NNAT, CogAT, and Iowa-style items with audio narration from a real teacher. First 5 days are free.
Start practice now →2026 calendar — exact dates
| Date | What |
|---|---|
| January 8, 2026 | Registration opens |
| February 12, 2026 | Registration closes — no late entries |
| Feb 23 – Mar 27, 2026 | Testing window (your child's specific date assigned by school) |
| April 24, 2026 | Results released to families |
| May 15, 2026 | Vanguard offer decisions due from families |
Set a calendar alert for January 8. Late registration is not accepted under any circumstance.
How to actually prepare (without burning your kid out)
Three principles for productive practice:
- Familiarity over drill. The single biggest score lift comes from your child being unsurprised by the format. A child who's never seen a figural matrix loses points solving "what is this question asking" before the actual reasoning.
- 20 minutes a day, 4-6 weeks out. More is counterproductive. The goal is comfortable familiarity, not exhaustion.
- Mix question types in each session. Real tests don't give you 20 of the same kind in a row. Practice the way you'll perform.
Cusp's GT Vanguard Prep is designed around exactly this — 20 days, ~20 minutes per day, mixed item types matching the actual HISD test composition.
Sources
- HISD Vanguard / Magnet Program: houstonisd.org/Page/40835
- HISD Gifted & Talented Identification Plan: houstonisd.org/Domain/8268
- CogAT Form 8 Technical Manual (Riverside Insights)
- NNAT3 Score Interpretation (Pearson Assessments)
Updated annually as HISD publishes its current-year GT identification plan. Last review: May 28, 2026. Spot an outdated fact? Email hello@cusp.school.
Make this your child's testing year
Cusp's 20-day GT Vanguard Prep is free for the first 5 days. NNAT figural matrices, CogAT verbal/quantitative items, Iowa-style passages, all narrated in a teacher's voice.
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