Essay Writing & STEM Critical Thinking
BASIS Independent Silicon Valley Entrance Exam: What's Actually on It and How to Prepare (2026–2027)
The BASIS Independent Silicon Valley entrance exam is unlike the ISEE or SSAT. It's a proprietary 90-minute test with open-ended math, reading and grammar, and a timed handwritten essay. This post breaks down every section, explains how the admissions team uses the results, and gives you a concrete prep plan for the October and January exam dates.