About Shelby Joe

Shelby Joe 周 is the Founder of Piqosity. He has more than 20 years of experience in education as an entrepreneur, professor, and tutor. Shelby earned his BA in Political Science from Rice University. Born and raised in Mississippi, he now resides in Houston but has also lived in Beijing, Shanghai, and Hamburg.

PSAT Digital Practice Tests, Free & Full-Length

For the new Digital PSAT 10/11, Piqosity offers two, full-length PSAT practice tests completely free! Just like the real PSAT, Piqosity's digital PSAT is comprised of 54 Reading and Writing Questions and 44 Math questions. No credit card or phone number required Full-length and adaptive Completely free through September 19, 2024 We are also [...]

By |2025-03-13T14:24:35-05:00August 26th, 2024|SAT Test Prep|

Scheduled Downtime on September 2, 2024

The Piqosity application will be unavailable between approximately 3am and 5am Houston time on the morning of September 2, 2024. This downtime is necessary to upgrade our Amazon Web Services hosting environment to handle the exponentially increasing number of students using our app. This update is purely to our server environment. Outside of faster, [...]

By |2024-09-03T16:19:38-05:00August 23rd, 2024|App Alerts|

Digital SAT Practice Tests – Free, Full-Length, and Adaptive

Piqosity offers 12 Digital SAT practice tests, and these tests are currently available for free! Just like the real Digital SAT, Piqosity's full-length Digital SAT tests are comprised of 54 Reading and Writing Questions and 54 Math questions. No credit card or phone number required Full-length and adaptive 2 Free Digital SAT practice tests [...]

By |2024-09-23T13:35:39-05:00July 29th, 2024|Favorites, SAT Test Prep|

How to Tutor the ISEE, a Guide to Getting Started

ISEE (commonly pronounced "i-see") is an acronym that stands for the Independent School Entrance Exam, which is commonly taken by students applying to private schools in the United States. This peer-normed, standardized test is commonly taken by students applying to middle school (grades 5/6-8) and high school (grades 9-12). Students can also take the [...]

By |2025-02-28T23:08:54-06:00July 25th, 2024|ISEE Test Prep, Teachers & Tutors|

DSAT Course Known Issues

The SAT Digital Course is a work-in-progress. Please pardon our errors: Concept review lessons (text) are incomplete Piqosity Virtual Tutor will show construction messages for unfinished lessons Changing previously selected answers may not reflect correctly on the results page The progress report may not automatically update Teacher assignments of full-length tests may not display [...]

By |2025-02-15T11:16:23-06:00July 18th, 2024|App Alerts|

Free ACT Official Practice Test PDFs and Answer Explanations

This page contains professionally-written answer explanations to the freely available, official ACT practice tests floating around on the internet. Depending on the year, either the ACT or the SAT is the most popular college admissions test in the United States. About 1.3 million students in the graduating class of 2022 took the ACT or [...]

Free ACT Practice Tests, Full-Length

Piqosity's market-leading ACT prep course provides two, free ACT practice tests. Just like the actual ACT exam, these mock ACT tests are 215 questions long and immediately accessible: No credit card or phone number required Full-length and full-featured Self-scoring and auto-analyzing The 2, free ACT practice tests are in addition to a no-cost mini [...]

By |2024-06-21T16:06:53-05:00June 21st, 2024|ACT Test Prep|

Free ISEE Practice Tests, Full-Length

Piqosity now offers two, absolutely free ISEE practice tests. These tests are full-length and level-specific for the ISEE Upper, Middle, and Lower levels. Just like the actual ISEE test, Piqosity's full-length ISEE practice tests are comprised of 161 questions including the essay. No credit card or phone number required Full-length and full-featured Self-scoring and [...]

By |2024-06-20T17:50:45-05:00June 20th, 2024|ISEE Test Prep, Piqosity News|

Announcing Piqosity Virtual Tutor 2 with Remediation

Next-Level Personalization & Ease of Use With Piqosity Virtual Tutor 2 (PVT), Piqosity is now "next level" easy to use for individual students. To navigate through an ACT, SAT, or ISEE course, students need only click on the big, blue "Start Next Module" button on their dashboards. A new, color-coded progress bar visually tracks [...]

By |2024-08-26T15:45:08-05:00June 18th, 2024|Piqosity News|

Announcing Our ISEE Test Prep Video Course

Our ISEE Upper Level online test prep now includes an available Premium Video Course with over 7 hours of instruction and guided practice split across 37 videos. The video course is meant to replicate a standard, in-person ISEE prep class but from the comfort and convenience of the student's home. Each of the ISEE [...]

By |2024-08-22T11:57:17-05:00June 14th, 2024|Piqosity News, ZPQA ISEE|
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