​New: ​This membership now includes our comprehensive Mastering Desmos for the Digital SAT course and complete video and interactive graph explanations for every question on Digital SAT Practice Tests.

This professional membership to 1600.io provides tutors and teachers with direct access to all the same materials available to their students who have been enrolled, typically via vouchers, in our Tutored Student Membership, allowing tutors/teachers to familiarize themselves with 1600.io's resources. In addition, this special tier of 1600.io membership grants instructors business-level support from 1600.io. Students get site usage and instructional support from 1600.io staff through our contact form, website chat facility, email, and on our Discord server, while instructors with this enhanced membership level enjoy videoconference and email consultations and support from partners and senior managers who assist prep-center owners, schoolteachers, and tutors in integrating 1600.io's many resources into their instructional framework and in deploying 1600.io resources to maximize the efficacy of students' participation.



Vouchers for student memberships can be purchased here.

This membership includes access to the following resources:


  • The Digital SAT Math Orange Book, an interactive, online edition of our acclaimed SAT math resource
  • Autoscoring answer forms (AAFs) for every released SAT, allowing instant test scoring and one-click access to video explanations for any of the 4,000+ questions from those tests, along with links to SMTEx (see below) and citations to our 1600.io SAT Math Orange Book
  • Courses with question-by-question analysis and explanation of every Math, Reading and Writing question on the following real SATs (US, unless noted):
  • Digital Practice Tests 1, 2, and 3
  • Pre-Digital Practice Tests 1 through 8
  • April 2017 (Maine)
  • May 2017
  • Oct. 2017 (Practice test 9)
  • March 2018
  • April 2018 (Maine; also given as May 2018 International)
  • May 2018
  • Oct. 2018 (Practice test 10)
  • March 2019
  • April 2019
  • May 2019 (US)
  • May 2019 (International)
  • October 2019
  • March 2020
  • October 2020
  • March 2021
  • April 2021
  • May 2021 (US)
  • May 2021 (International)
  • October 2021
  • March 2022
  • April 2022
  • May 2022 (US)
  • Over 700 video explanations for the practice problems and SkillDrills™ in the Orange Book for those with the print edition of that text, plus AAFs with helpful feedback and direct links to explanatory videos for each problem
  • Access to our ever-growing Tools and Resources module, which includes the following items:
  • The Reading Section Mistake Analysis and Recommendation Tool (R-SMART)
  • Our proprietary compilation of the details of every history and literature passage that has appeared on any released PSAT or SAT, along with those from Khan Academy; each entry includes a link to the source text from which the excerpt was drawn, with many of those sources available to read online at no cost
  • The SAT Math Topic Explorer (SMTEx)
  • Our college essay-writing course

...and more.