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.

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|

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 Completely free through May August 24, 2024 [...]

By |2024-06-21T16:18:20-05:00June 20th, 2024|Favorites, SAT Test Prep|

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 [...]

DSAT Course Construction Notice

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 In Personalized Practice, do not use the "Math - Do Not Use" topic since these are questions that we have not finished porting over from the paper [...]

By |2024-06-13T10:33:25-05:00June 12th, 2024|App Alerts, ZPQA SAT|

Announcing Major Summer App Update

We successfully deployed our most complex update ever to the Piqosity application on Thursday, June 13, 2024. These are the biggest changes existing users should be aware of: A New Student Questionnaire helps to orient students when they first log in. The Student Dashboard has been completely reimagined. Piqosity Virtual Tutor 2 (PVT [...]

By |2024-06-14T14:42:18-05:00June 5th, 2024|Piqosity News, ZPQA Org Teacher, ZPQA Student, ZPQA Teacher|

Announcing Our ACT Test Prep Video Course

Our ACT online test prep now includes an available Premium Video Course with nearly 15 hours of instruction and guided practice split across 62 videos. The video course is meant to replicate a standard, in-person ACT prep class but from the comfort and convenience of the student's home. Each of the 62 ACT prep [...]

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