The BASIS Independent Silicon Valley entrance exam trips up more students than it should — and almost always for the same reason. Families assume it works like the ISEE or SSAT, show up unprepared for something completely different, and then wonder what went wrong. I've watched this happen more than once. This post gives you a section-by-section breakdown of what's actually on the BASIS Independent Schools Entrance Exam and a realistic plan for getting your child ready for all three parts.
BASIS Independent Silicon Valley Entrance Exam: Fast Facts (2025–2026)
- Official exam name: BASIS Independent Schools In-Person Entrance Exam
- Total time at the school: ~2 hours (90 minutes of testing + check-in and instructions)
- Three sections: Math — open-ended, 30 min | Reading and grammar — multiple choice, 30 min | Writing — timed essay, 30 min
- Format: In-person only, at the San Jose or Sunnyvale campus
- Who takes it: All applicants, including Grades 6–9
- 2025–2026 exam dates: October 26 (Early Admissions) | January 25 and February 8 (Regular Admissions), all at 10:00 AM
- Early Admissions deadline: ~October 29 | Decision: ~December 3
- Regular Admissions deadline: ~January 28 | Decision: ~March 18
- Scores shared with families: Never
- ISEE or SSAT accepted: No — BASIS uses only its own exam
- Prohibited items: Calculators, rulers, cell phones, smartwatches
- What to bring: Pencils and erasers (student-supplied)
Why the BASIS Independent Silicon Valley Entrance Exam Is Not the ISEE or SSAT
This is the first thing every family needs to know: BASIS Independent Silicon Valley does not accept the ISEE, the SSAT, or any other third-party standardized test. The school uses only its own proprietary exam — and that single fact changes how you should prepare.
The BASIS Independent Schools Entrance Exam has three timed sections. Each section runs exactly 30 minutes. Your child works at their own pace within each window but cannot carry unused time into the next section.
The math section uses open-ended questions — no answer choices, no bubbling. Your child must construct every answer from scratch. This is different from both the ISEE and SSAT, which lean heavily on multiple choice math.
The reading and grammar section covers reading comprehension and grammar using multiple choice questions — the most familiar format for most students.
The writing section gives your child a single unseen essay prompt. They have 30 minutes to read it, plan, and write a complete response by hand. No revision pass. No spell-check.
No calculators, rulers, or electronic devices are allowed. Your child must bring their own pencils and erasers. The exam runs on designated Saturday mornings at the San Jose or Sunnyvale campus.
What Math Topics Appear on the BASIS Independent Entrance Exam — By Grade Level
The BASIS Curriculum runs 1–2 grade levels ahead of California state standards. That means the math on the entrance exam reflects what BASIS students are expected to know at that grade — not what the average California classroom covers at the same age.
Here is a practical breakdown by application grade, based on BASIS Curriculum benchmarks:
- Applying to Grade 6: Arithmetic fluency, fraction and decimal operations, ratios, proportional reasoning, introductory pre-algebra
- Applying to Grade 7: Integer operations, algebraic expressions and equations, basic geometry (area, perimeter, angle relationships), introductory statistics
- Applying to Grade 8: Linear equations and inequalities, systems of equations, the Pythagorean theorem, coordinate geometry, data analysis
- Applying to Grade 9: Algebra I and II concepts, quadratic equations, function notation, polynomial operations
Every one of these questions is open-ended. Your child writes answers, sets up solutions, or shows work — there are no answer choices to fall back on. Fluency with mental math and clear written work matters here more than on any standardized test your child has taken before.
BASIS also warns families directly that the exam includes concepts the student has not yet mastered. That is intentional. Reviewers want to see how your child handles the unfamiliar — not just what they have already memorized.
How to Prepare for the BASIS Independent Entrance Exam Writing Section
The writing section is the one families underestimate most. I had a student who wrote her first timed essay on an unfamiliar prompt during the actual exam — she told me afterward that she spent eight of her thirty minutes just deciding what to say. That is eight minutes she did not have.
Your child has 30 minutes to read a prompt they have never seen, decide on a position, organize their thoughts, and write a complete response by hand. BASIS's stated values center on intellectual curiosity and critical thinking. Reviewers want to see a clear, arguable idea supported by specific, logical reasoning — not a perfectly formatted five-paragraph essay.
A strong response for a Grade 7 or Grade 8 applicant does three things. It opens with a focused claim — not a restatement of the prompt. It develops that claim with two or three concrete, specific supporting points. And it closes with a sentence or two that adds meaning rather than just repeating the introduction.
Handwriting neatness matters more than most students expect. Reviewers read dozens of handwritten essays in a single sitting. A legible, organized page communicates effort and clarity before a single word is evaluated.
The most effective preparation for this section is writing timed essays on prompts your child has never seen — repeatedly, over several weeks. Students who do this for six to eight weeks before exam day produce dramatically more organized responses than those going in cold.
BISV Admissions Test Prep: How Much Preparation Is Actually Enough?
BASIS Independent Silicon Valley's official position is that preparation is not necessary. I respect that position — and I want to be clear about what it actually means. The school does not want families hiring tutors to cram content the student doesn't genuinely know. That approach produces results that look good on paper and fall apart in the classroom, which helps nobody.
What that statement does not mean is that building fluency and confidence is pointless. Practicing structured thinking and timed writing gives your child skills they keep permanently. That is different from gaming a diagnostic.
Students who practice timed, open-ended problem-solving for 6–10 weeks before the exam do not perform better because they memorized more content. They perform better because they are less anxious, more efficient with their 30 minutes, and more willing to attempt unfamiliar problems instead of freezing.
For most families, a 6-to-10-week window is the right amount of time. Start by identifying genuine skill gaps — not hypothetical ones. Work on those gaps with focused practice. Then shift to timed, full-section simulations in the final two to three weeks before exam day.
The BISV Family Meeting and Other Admissions Factors Beyond the Entrance Exam
The entrance exam is one piece of a multi-part review. For Grade 2 through Grade 9 applicants, the admissions decision also includes a required 30-minute virtual Family Meeting with the student and parents together, English and Math teacher recommendation letters, and multi-year academic transcripts — three years preferred.
The Family Meeting is not a formality. BASIS uses it to assess social-emotional readiness for a demanding curriculum and to check whether the family's expectations match the reality of the BASIS model. A student who talks genuinely about intellectual interests — a specific topic they researched on their own, a question that kept them up at night, a book that changed how they think about something — makes a far stronger impression than a student with polished, rehearsed answers.
Teacher recommendations carry real weight. Both an English teacher and a Math teacher submit letters. Choose teachers who have watched your child work through difficult problems — not just teachers who gave high grades.
Transcripts matter for context. A student whose grades show consistent academic growth across three years tells a clearer story than a student with one strong semester and uneven history.
Early Admissions vs. Regular Admissions: Which BASIS Independent Silicon Valley Round Is Right for Your Child?
BASIS Independent Silicon Valley offers two admissions rounds. Knowing the difference helps you choose the right timeline.
Early Admissions: Application opens in August and closes around October 29. The entrance exam is offered on one date — October 26 at 10:00 AM. Admissions decisions are released around December 3. This round works well for families who are confident in their child's readiness and want a decision before winter break.
Regular Admissions: Application closes around January 28. Exam dates are January 25 and February 8, both at 10:00 AM. Decisions are released around March 18. This round gives families more time to complete teacher recommendations, update transcripts, and let a student show continued academic growth through the fall semester.
Neither round is officially described as more selective than the other. If your child is ready and your application materials are strong, the Early round removes months of uncertainty. If your child needs a strong fall semester to tell a better academic story, Regular Admissions is the smarter call.
One practical note: exam date slots fill up. Once a Saturday session reaches capacity, registration closes. Register early within your chosen round — do not wait until the application deadline to schedule the exam.
Frequently Asked Questions: BASIS Independent Silicon Valley Admissions and Entrance Exam Prep
Q: Does my child really need to prepare for the BASIS entrance exam if the school says prep isn't necessary?
A: BASIS's statement means they don't want families cramming content the student doesn't genuinely know. What it does not mean is that building fluency and confidence is pointless. BASIS explicitly states that students will encounter unfamiliar concepts on the exam — that is intentional. A student who has practiced working through open-ended problems under a 30-minute clock will respond to unfamiliar questions with persistence rather than panic. That mental stamina is what practice builds — and it is not the same as gaming the diagnostic.
Q: What math topics appear on the BASIS entrance exam for middle school grades?
A: The BASIS Curriculum runs 1–2 grade levels ahead of California state standards, so the exam reflects that. For Grade 6 applicants: arithmetic fluency, ratios, proportional reasoning, introductory pre-algebra. For Grade 7: integer operations, expressions, equations, and basic geometry. For Grade 8: linear equations, systems, the Pythagorean theorem, and data analysis. For Grade 9: Algebra I and II concepts, quadratic equations, and function notation. All questions are open-ended — your child must construct or show every answer with no multiple choice options available.
Q: What does the writing section of the BASIS entrance exam look like?
A: Your child has 30 minutes to respond to a single unseen prompt in longhand. No prompt is published in advance. BASIS's stated values — intellectual curiosity, critical thinking, rigorous discourse — signal what a strong essay looks like. Reviewers want a clear central argument, logical organization, specific supporting detail, and authentic voice. A student who opens with a focused claim, develops it with two or three concrete supporting points, and closes meaningfully will stand out. One detail families consistently miss: the entire essay is handwritten, so legibility directly affects how it is received.
Q: When should we start preparing for the BASIS Independent Silicon Valley entrance exam?
A: Plan for a 6-to-10-week window before your target exam date. For the Early Admissions exam on October 26, that means starting by mid-August. For Regular Admissions exam dates in late January or early February, starting in mid-November gives you a full 10-week window across winter break. Use the first two weeks to identify real skill gaps. Use the middle four to six weeks to build fluency through timed practice. Use the final week for one light review session only — intensive cramming in the 48 hours before the exam raises anxiety without improving performance.
Q: Will my child find out their exam score after the BASIS entrance exam?
A: No — and this genuinely surprises most families. BASIS Independent Schools does not share exam scores or any score-related feedback with students or parents at any point, before or after the admissions decision. The results are an internal diagnostic tool used only by the Admissions Team and Head of School. If your child is not admitted, you will not receive score data explaining why. This makes a post-exam debrief impossible, which is one more reason to enter the exam having already practiced the format and built real fluency — you will not get a second look at what went wrong.
Q: What is the Family Meeting and how does it affect my child's admission?
A: The Family Meeting is a required 30-minute virtual interview for all Grade 2 through Grade 9 applicants — the student and parents attend together. BASIS uses it to assess social-emotional readiness for the pace of the curriculum and to confirm that family expectations match the school's model. A student who can describe genuine intellectual interests — a specific question they chased on their own, a subject that genuinely excites them — makes a far stronger impression than a student reciting rehearsed lines. One practical prep step: have your child practice describing two or three real interests out loud in 2–3 sentences each, without a script, before the meeting.
Q: My child hasn't mastered all the material on the exam — will that hurt their chances?
A: No — and BASIS is explicit about this. The exam is designed to include material students haven't yet encountered. Reviewers are not looking for a perfect score. They are using the exam as a diagnostic to understand what your child knows and where the gaps are. A student who handles all familiar material correctly and makes a genuine, logical attempt on unfamiliar problems is well positioned. Leaving unfamiliar problems completely blank signals less intellectual persistence than BASIS looks for. Showing your reasoning — even partially — on a problem you can't fully solve tells reviewers far more than a blank page does.
Q: Is Grade 9 the last grade for which BASIS Independent Silicon Valley accepts new students?
A: Based on BASIS's published admissions materials, the standard application range covers Grades 2 through 9 — Grade 9 is the last documented standard entry point. Mid-high-school entry at Grade 10 or above is not described in the school's public admissions overview. If you are considering entry after Grade 9, contact the BISV admissions office directly to ask about availability. For most families, the earlier your child enters, the more time they have to build the academic habits the BASIS model requires before AP coursework starts in upper school.
Practice the Skills That Matter Most for the BASIS Independent Silicon Valley Entrance Exam
The students I've seen perform calmly on the BASIS Independent Schools Entrance Exam are not the ones who crammed the most content the week before. They are the ones who practiced thinking under pressure — repeatedly, weeks in advance, until the format felt familiar.
At stemcriticalthinking.com, our STEM Critical Thinking Practice Tests for Grades 6–9 feature open-ended, grade-level-aligned math and reasoning problems — the same format your child will face on the BASIS exam. No multiple choice. No calculator. Timed, structured practice designed to build the problem-solving fluency BASIS is actually looking for.
Our Essay Writing Practice Tests for Grades 6–9 give your child repeated practice responding to unseen prompts under a 30-minute clock — the exact condition of the BASIS writing section. Every prompt is reviewed for age-appropriateness and intellectual rigor at the Grade 6–9 level.
Both tools are available right now. Start your child's BASIS Independent Silicon Valley entrance exam preparation today — with practice resources designed specifically for this test format.
